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Showing posts with label starry night sky. Show all posts
Showing posts with label starry night sky. Show all posts

Tuesday, July 27, 2021

Low Level Lighting BLENDS

The Milky Way above Temple of the Moon in Capitol Reef National Park, photographed with Low Level Lighting, and then blended with an additional foreground exposure (using overhead starlight) to increase foreground detail in the shadow areas.

I love doing both Low Level Lighting and starlight blends. My colleague, Wayne Pinkston and I co-authored the Low Level Lighting technique (or LLL). LLL gives one the drama or character that one can achieve with moonlight, but without washing out or lower the contrast of your Milky Way sky. Starlight blends allow you to increase foreground detail (especially in the background areas) that one cannot achieve with LLL, and many think that starlight blends look more natural, even though they are "flat" due to the overhead lighting effect of starlight. By blending my LLL exposures with the foreground portion of a longer starlight exposure, one can achieve the best from both techniques. Let me explain in this tutorial...



1. A single exposure (15mm lens on a Canon 6D • f/2.8, 15 sec, ISO 8000)

2. Same EXIF, but with my LLL, and stacked 18 times to reduce noise. I like the drama and "character" one can achieve with LLL — it's similar to moonlight, but you get to control the direction of the light, and it doesn't wash out or lower the contrast of your Milky Way sky.

3. Longer foreground exposure, using overhead starlight (f/4, 120 sec, ISO 6400, with Long Exposure Noise Reduction turned on), then blended with the sky exposure in number one. I like the detail I get in the foreground, but I often do not like the "flat" lighting this technique gives you. (One remedy is to do a Blue Hour blend rather than a starlight blend, as these twilight blends have more of from-the-side directional light.)

4. My LLL exposure (from 2.) blended with the foreground exposure from number 3. This gives me the best on both techniques: more foreground detail (from the longer starlight exposure) AND more "character" from the LLL.

NOTE: As of May 25, 2021 there is no longer any artificial lighting allowed in Capitol Reef National Park due to a new Superintendent’s Compendium.

This includes LLL (Low Level Lighting) — even though the intensity of LLL on the monument is equal to the light coming from a Quarter Moon that is about to set.

Capitol Reef now joins Arches, Canyonlands and Grand Teton National Park (and Natural Bridges Nat'l Mon.) in this artificial light restriction.


ALTERNATIVE BLENDS: Where LLL is not allowed, a blended exposure of the starry night sky (as in #1), with a longer exposure of the foreground lit by overhead starlight (as in #3), produces beautiful results. Many feel this has a very natural look. I agree; but I also think it has a flat, and somewhat drab look.

An alternative is to use a Blue-Hour blend from a twilight exposure that is taken about 30 minutes to an hour after sunset, or a similar period prior to sunrise. The advantage of a twilight exposure is that it has directional light: the west side of the sky (after sunset) is brighter than the rest of the sky, and the opposite is true for a morning twilight. When these brighter portions of the sky are perpendicular to your foreground landscape features, they produce shading and sculpturing to your landscape, giving it more interesting "character." The disadvantage of this technique is the waiting: You have to shoot your Blue-Hour exposure and wait until the Astronomical Dusk to shoot your starry night sky exposure (or shoot your starry night exposure and then wait for the morning twilight exposure). With a starlight foreground exposure, you can take that foreground shot immediately after doing your starry sky exposure. Here is a tutorial for doing a Twilight Blend...

A Blue-Hour exposure of three obelisk spires in Capitol Reef National Park. Photo taken about an hour after sunset with a Canon 6D, using a 15mm Irix lens • f/4.5, 25 seconds, ISO 800, Daylight White Balance.

Same image processed to a warmer, more natural color balance. (Some people like to keep the bluish or purplish color balance that come with a twilight or Blue-Hour exposure. I do not.)

Milky Way sky exposure taken about 1-hour later, during the Astronomical Dusk: f/2.8, 15 seconds, ISO 8,000 • 8 exposures stacked to reduce noise.

Last two images blended together in Photoshop layers. Click on any image to enlarge.




Saturday, December 30, 2017

'Starry Night Quotes' 2018 Wall Calendar

Starry Night Quotes - 2018 Wall Calendar • 13-month • Jan 2018-Jan 2019 • click to enlarge

TWO CALENDAR OPTIONS:

1. FREE Download - You can download a mini PDF version of this calendar to view on your hand-held device or to print out from you own inkjet or laser printer (15 - 8.5" x 11" sheets). I can also email this PDF directly to you, if you want to sign up for my NightScaper newsletter:

Get my FREE 2018 calendar





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2. Order a Pre-printed calendar from my Etsy website for $24.99 - This spiral-bound, 28-page wall calendar looks similar to the above photo and is printed on beautiful glossy coated card stock. Folded, it is 11" x 8.5". Hanging on your wall it is 11" x 17". Because it is a 13-month calendar (January 2018 thru January 2019), you can order through January 2018 and still have a full calendar year!

$5.00 of your purchase is will be donated to the International Dark-Sky Association (IDA) to help preserve our dark sky areas. (Your name and address will not be shared with IDA, unless you so designate.)

Inspiring quotes. Each month of my calendar includes quotes from great thinkers in our world's history that inspire us as we contemplate our relationship with the universe above us.

The above quote is from the rarely sung fourth verse of "Home on the Range" (click to enlarge).

Finding Darkness in rural America. The "Starry Night Quotes" calendar is part of my Finding Darkness project —a quest I am on to help find and protect our dark skies. These are places where we can still clearly see the night stars. My goal is not to be an alarmist about light pollution, but to promote the use and benefits of dark sky areas as sanctuaries for creativity and solace —areas where we can remove the noise from our busy lives, to think, dream and be inspired.

A Santa Fe astronomer has said, "...as light pollution spreads, we are slowly losing one of the oldest and most universal links to all of human history." As late as 1889, Van Gogh was able to experience and paint his famous “Starry Night”. If he were alive today, there would be nothing in the night skies over Saint Rémy, France to inspire him, as the Milky Way can no longer be seen from there.

Can you really see the Milky Way at night with your naked eyes? I'm often asked this question by people who have never seen the Milky Way —and over 80% of people in the United States have not had this amazing experience because of increasing light pollution. Here's an article wrote on the naked eye experience vs. what the camera sees under a Bortle class 1 to 3 sky.


Light pollution affects how we see the starry night sky. Persons in a bright suburban area or a city like Salt Lake City (Bortle sky class 7-9) can only see a few of the brightest stars. Those who are far the from city lights can often see the Milky Way and millions of stars (click to enlarge).
Our ability to see stars in the night sky lessens as light pollution increases. Feel free to download and share this image on social media (click to enlarge).

Press Release: Please feel free to share my Finding Darkness press release with your local media.








Monday, May 23, 2016

View of the Milky Way with Your Naked Eye

Milky Way over The Watchman - Zion National Park, Utah. Light on mountain is light pollution from nearby Springdale city street lights ~ © Royce Bair

Simulated naked eye view
Histogram of a "naked eye" exposure
What the eye sees vs. what the camera sees. When people see my NightScapes for the first time the most common question is, "Is that what the Milky Way really looks like with your naked eye? Can you really see that many stars in the night sky?" The answer is, "Yes and no." You really can see it quite clearly with your naked eye (if you are in an area with very little light pollution), it's just not as bright as I can see with my camera.

The reason is because my camera is manually controlled to take the images at a longer exposure (typically 8 to 30 seconds, depending on the lens I'm using), so it gathers more light for its sensor than my eyes can. Also, the human eye has an iris aperture that is rated at about f/4.0, whereas my typical night photography lens is rated at f/2.8 or wider (letting in twice as much light to the sensor).

Histogram of raw camera exposure
Raw camera exposure
Above, is a simulated view of what my eye saw of the Milky Way over The Watchman in Zion National Park — this is about two stops darker than what my camera recorded (to the right), using an f/2.8 aperture setting, an exposure time of 15 seconds, and an ISO of 6400 or 8000. (Notice that the "toe" of the exposure histogram is just passing the midway point, whereas the toe of the simulated "naked eye" exposure histogram doesn't even come close to the midway point. This exposure is two stops less than what it should be —post production corrections can correct a 1-stop underexposure, but not a 2-stop underexposure. This means that if you only have an f/3.5 or f/4.0 lens; or your camera only goes to ISO 3200, you're still going to get an acceptable exposure, that's within the range of post production correction —provided you shoot in the camera "raw" mode, which typically has 16-bits of information, rather than the camera JPEG mode which carries only 8-bits of information per color channel. Here's a tutorial I created on the benefits of 16-bits raw images vs. 8-bits images.)

Post Production: The raw camera image has all the brightness and detail needed for a great photo, but it is flat or lacking in contrast. My final NightScape images are created in post production with very simple steps in Photoshop. All the stars are there in the camera's raw image, but a contrast gain in the sky is necessary to make them more apparent. My goal is give the same clarity you expect to see in an astronomical observatory (taken with a huge telescope) image, but with a wide-field view, coupled with an interesting landscape feature in the foreground — something the big telescopes cannot do!

After adding curve adj.
"S" shaped adjustment curve
The powerful "S" Curve. Here's the main Photoshop post production step I use to increase the contrast in the sky: I first select the sky, using the Magic Wand tool (I usually have to do a little Laso tool work to get all the bright stars into the selection). I then create a channel of the selection that I can use later. The second and main step is to turn that saved selection into a "Curves" Adjustment Layer that I can add a contrast-increasing "S" shaped adjustment curve. (The shape of this curve is controlled by the two anchor points so that the curve pinches or brightens the large highlight area to the right of the histogram "mountain", and darkens the shadow area to its left.) The more vertical the line becomes between the two anchor points, the more your contrast gain.

Slight color changes via Curves
Sky Color Balance. Every evening sky has a difference color to it, depending on the atmospheric conditions for that night. Some photographers shoot in the "AWB" Auto White Balance mode, which produces somewhat of a neutral coloration to the sky. Some will use a daylight White Balance (about 5250º K), giving a much warmer tone to the sky. Others will use the "Tungsten" (or incandescent) setting (about 3200º K) for a deep blue look. Although all of these settings can later be adjusted in Adobe Photoshop's RAW Converter, I prefer to set my Kelvin to 3800º. This setting usually give me the most natural look to my night sky.

Final, minor color changes can be made in Photoshop's Curves to the the red, green, and blue channels (represented by the three diagonal colored lines). Be careful to not over do this — as a little color goes a long way. The final coloration depends on what you remember seeing in the sky that night.

Adjusting the landscape. The final step is to use the same saved sky selection (channel) and inverse it so that it is now selecting the mountains, instead of the sky. Once this is done, another Adjustment Layer (you can use "Levels", or "Curves", but Curves is more powerful) is created from that selection in order to change the color of the sodium vapor lights (coming about a mile away from Springdale city) —so that The Watchman mountain is a more pleasing "red rock" sandstone color.

Histogram after all adjustments
Extended tonal range. The purpose of all these adjustments is to not only increase the contrast of the sky, but to extend the tonal range of the final image. Compare the histogram on the right to the histogram of the raw camera  exposure, above. Note: The "S" curve contrast adjustment naturally increases color saturation and vibrance. In most cases you will not have to artificially add more.

Compare: In the image below you can quickly compare the differences between the "naked eye" simulation, the "raw camera" exposure, the "S"-curve adjustment, and the final image —with the extended tonal range of its histogram.

Click to enlarge.
Here is another comparison of the camera RAW exposure vs. simple post processing via the "S" curve in a Photoshop "Curves" Adjustment Layer:

Click to enlarge
My eBook, Milky Way NightScapes, provides additional post processing instruction in its 4th chapter.


Monday, February 8, 2016

Dave Morrow: Night Sky Photography On the Edge of Reality

"Sometimes Things Get Complicated" ~ a panorama composed of 11 images ~ Photo by Dave Morrow
 Night Photography is a completely new field to Dave Morrow. Looking at his portfolio, It's hard to believe that he took his first shots of the Milky Way only two months ago!

Editor's Note: This feature is an update on a post I did about Dave back in October 2012.

"I have always been a huge fan of the subject," says Dave. He looked at thousands of pictures of the night sky, which made him want to create something completely different from everyone else.

"Night Tremors" ~ Ruby Beach on the Olympic Peninsula ~ Photo by Dave Morrow
 Two months ago, Dave was headed to the North Cascades to shoot Picture Lake and overheard someone talking about the meteor showers that night. After shooting the sunset he laid out and waited for the stars. His first shot was a bit dark, and the ISO was to low, but after messing around for about 10 minutes he managed to get something he really liked.

"When I got home from my first shoot and upload the picture onto my computer, I had no clue how to process this beast of an image," reports Morrow.  He decided to experiment and see what happened. As he moved different sliders around in Lightroom, some great colors start to come out in the image, so he decide to run with it, and the rest is history.

"When Worlds Collide" ~ Photo by Dave Morrow
Free Tutorial: Dave's star photography has been so well received on the Internet, he has produced a free tutorial and a set of inexpensive Lightroom presets to help others interesting in this type of night photography:
Challenges: Dave's biggest challenge in this new style of star photography is trying to come up with some cool stuff in the foreground to keep his shots interesting. "Finding new compositions that keep people coming back for more is a huge challenge that will continue to grow as I take more shots," remarks Dave.

"Shoot Me to the Stars" ~ Mt. Rainier from Sunrise Point ~ Photo by Dave Morrow
Favorite Equipment and Tools: Morrow's favorite piece of photographic equipment is his Nikkor 14-24mm f/2.8G lens. "Shooting super wide angles at fast apertures is key to star photography, and this thing handles it like a beast," whips Dave.

Number two has got to be the Nikon D800 which he feels seems to have a star photography “sweet spot” of ISO 5000. "I have never seen a camera handle ISO 5000 like this one does," reports Dave.

Number three would be his Really Right Stuff Tripod. Extending to 72 inches tall is a huge advantage when shooting the night sky for hours, due to the fact that he can look up at his camera without slouching over. The rest of his gear can be found here on his website.

And because the moon is a Milky Way photographer's worst enemy, Dave uses The Photographer's Ephemeris to know when the moons rises and sets (and how bright/big it will be on any given night), as well as the times of the sunrise and sunsets. He also uses a free light pollution map (by Blue Marble). Other tools are mentioned in his online tutorial. (Editor's Note: If you live in the continental United States, another great light pollution map is the Dark Sky Finder mention in our 12 September 2012 blog post.)

On the Edge of Reality: "Escaping people, and at times reality has always been something I enjoy now and then. In order to get good dark skies for stars photography you must do both of these things," says Dave. Adding somewhat philosophically, "So it works out well!"

More of Dave Morrow's photography can be found at his website. Dave also has a Free Learn Photography eCourse.


 


Monday, January 11, 2016

Increasing Star Glow

Stars over "The Fortress" - Bryce Canyon NP ~ © Royce Bair (click to enlarge images)
Stars over "The Fortress" - Bryce Canyon NP - with a Tiffen Double Fog 3 filter
The three brightest stars and planet appearing here are (L-R): Arcturus, Mars and Spica.
Canon 5D Mk3 • Rokinon 24mm f/1.4 • f/2.0 • 13 sec • ISO 3200 ~ © Royce Bair
Same as above, but with light painting add to enhance recognition. Note: although this was done
in a single exposure, the slight blurring and loss of contrast to The Fortress (from the fog filter),
persuaded me to use a second exposure of The Fortress, without the fog filter, and combine
it with the sky (see text below) ~ © Royce Bair
There are three ways to increase star glow in your NightScape photos: 1. Atmospheric conditions, such as thin cloud cover will give this effect, but this is unpredictable and impossible to control. 2. Post processing with software, i.e. StarSpikes Pro 3 plug-in filter for Photoshop. Their Soft Flare Intensity control sets the soft glow intensity around each star that you select. This process is somewhat laborious and can be a little unnatural, depending on your skill level. 3. Filtering over the lens when you shoot. The Tiffen Double Fog 3 filter gives the most natural glow of any filter I've ever used. The filter causes only the brightest stars to flare and glow, and has little effect on the dimmer stars. (It actually has a somewhat reverse effect on the dimmer stars, causing them to diminish slightly —which is exactly what thin cloud cover will do in real life.)

The are two disadvantages I find with the Tiffen Double Fog 3 filter: 1. Some ultra-wide angle lenses, Rokinon 14mm and the Nikkor 14-24mm do not accept filters; and 2. there is a slight loss in sharpness when using the filter. This loss of sharpness is most noticeable in foreground objects. In the top two photos there is a line of snow cover on the formation. This snow line has lost some definition and contrast in the image using the filter. In the two cropped enlargements below, you can see some edge blurring in the filtered image. In an image that I took that had light painting of the formation, this blurring and loss of contrast was more pronounced. This problem is eliminated by taking two shots (with and without filtration), and combining the filtered sky with the unfiltered landscape in post, albeit with some extra work.

Cropped and enlarged view of fog filtered image ~ © Royce Bair
Cropped and enlarged view of non-filtered image ~ © Royce Bair

 


Thursday, January 7, 2016

Ben Canales: A Sense of Imagination and Wonder

"Make a Wish" - starry night at Crater Lake, Oregon ~ © Ben Canales (click image for a larger view)
"In our youth, the stars were fertilizer for stories and adventures. Shooting stars became wishes. We didn’t know it, but the crazy talk and thoughts, ...with no limit in that big sky, were our dreams forming."   So wrote Ben Canales, describing a photo that went on to win National Geographic's Travel Photo of the Year in 2011 —a big wake up call to the public reaction for night images. (Click the Nat'l Geo link to see behind-the-scenes details about Ben's prep for this shot.) Editor's Note: This January 16, 2013 article is being re-published to coincide with an Instagram "NightScaper" feature I'm doing today on Ben.

Finding satisfaction in night photography: Ben's night pictures started as an attempt to capture and share the things he was seeing that others had never experienced under proper dark skies (Canales is originally from New Jersey). "I love the sense of discovery in night shooting. I never know what a place will look like under the stars until I actually go out there and shoot it. My camera becomes [my] night vision goggles to literally see into the dark. That aspect of 'what's out there' gets me going every time. I also love the difficulty of it. I get bored easily, so the challenge of shooting in the dark keeps me engaged and interested." Ben finds it fascinating to be able to shape 'reality' as he wants to, using light and darkness.

"History Reflected" - Lost Lake, Oregon ~ © Ben Canales
Early photo history: Back in 2010, Ben had his camera on a tripod to shoot a sunset while camping by hot springs. The sunset came and went, and rather than break down the gear, he jumped back into the hot spring. "I was mesmerized with the stars as the sky darkened and got excited to try and take a picture of the stars. I had no clue what I was doing."

Luckily, Ben figured out that he needed as much light as possible in manual mode. The first shot was an out of focus, straight up view of the stars; but his jaw literally dropped when he saw more stars on the back of his camera than his eyes could see! "A few shots later, when I saw the Milky Way resolve out of the image, I freaked out! Talk about the joy of discovery," laughs Ben.

After more research on the Internet, Canales realized this was a barely explored style of photography. It held an untapped potential of discovery, and the challenge to come up with new techniques was extremely captivating for him. About a month later Ben had a traumatic work injury that chopped off a finger and mutilated the others on his left hand! In the down time of rehab that summer, a friend was kind enough to lend him their Canon 30D and he went full time into obsessive exploring and learning night photography.

Behind the Scenes: Concerning the above photo, Ben writes: "The experience of this night was personally unforgettable. I was literally moved to tears when I stepped to the waters edge and saw the scene I was standing in front of. I literally got choked up. Technically, it was the first time using [a] fast 24mm f/1.4 lens, where I realized the game changing power of more light in regards to the Milky Way."

"Sometimes Alone" ~ © Ben Canales — "My new personal favorite. It's so different than my usual of glowing tents, houses, big mountain ranges. The emptiness and [the] intimacy keeps me loving this shot."
 Challenges: Canales faces many challenges in his style of night photography.  In the beginning, it was camera quality. "I used to do s-o-o-o-o much work in post to manage high ISO noise, but now that's quickly becoming a thing of the past. Three cheers for Lightroom 4!," says Ben.  He learned night shooting on a Canon 30D, and when he was able to move up to a Canon 5D Mark II, it literally blew his mind how much better the High ISO was from this camera. The 5D Mark III and 1Dx have gone levels higher.  But other challenges still remain. Among them are:
  • Weather. (Ben lives in the Pacific Northwest, so 8 of 12 months are cloudy and rainy. It's frustrating to be limited to mostly summer shooting.)
  • Locations. Gas is getting expensive! Most people don't realize the cost of driving 2-4 hours away to get a few night pictures. 
  • Lighting the human element (tent, cabin, car, person). 
  • Shooting all night and then trying to functioning as a regular person the rest of the week!
Favorite tools: In the beginning, Ben was always on Stellarium. It was immensely helpful to figure out how the night sky worked and learn the patterns (Canales strongly encourages new shooters to check out this site). Other pieces of equipment he finds it hard to be without:
  • Headlamp! To light those foregrounds and people.
  • A glowing tent (to take pics of — working all night, I never get to sleep in them ;-)
  • 5 hour energy drink
"Finding Oregon" — click image to see the video
Time lapse work: Ben currently lives in Portland, Oregon and works at Uncage the Soul Productions, where he is highly involved with time lapse. Time lapse work has opened all sorts of new doors for Canales. Much of this is the result of teaming up with Uncage the Soul Productions.

Ben originally told them his idea of going around Oregon to make a time lapse video and the team rallied around him to make it happen. They initially did a two-week road trip to make this film. It was an exhausting labor of love, but very rewarding to see it come to life. "Finding Oregon" was produced without an assignment, but has become wildly popular on the Net, helping them to get real, paying jobs. (Here's a behind-the-scenes video presentation Ben and John Walker did at the 2012 TEDxPortland, where you can see Ben "in-person", see their equipment in action, hear the challenges they faced on "Finding Oregon", and their latest film, "Finding Portland".)

You can see more of Ben Canales' photography and purchase prints at his website.






Wednesday, December 23, 2015

The Winter Milky Way

A Saguaro cactus in Organ Pipe Cactus Nat'l Monument rakes this December Milky Way sky. Note the Pleiades constellation at the top, the Sirius star near the horizon and the Orion constellation in the middle. Topaz Star Effects was used to give a "Christmas" twinkle to one of the stars. Camera is pointing to the southeast at about 11:00 pm. © Greg Ness
The Winter Milky Way. Most astro-landscape photographers will tell you to put your camera away when winter comes, as the Milky Way sky is too dark and uninteresting. That's partly true, if you're only interested in photographing the Milky Way's bright, Central Bulge. But, as you can see in Greg Ness' above photo, there's still plenty of excitement in the winter sky!

I recently took a small group of photographers on a winter workshop into the southern Arizona desert to prove this point — planning around the unique winter cycles of the Milky Way, and light painting the foreground features where needed.

This animated GIF shows the northeastern end of the Milky Way starting on the first day of Autumn (Sept. 21) and ending on the first day of Winter (Dec. 21). Each of the 92 frames in this animation were captured at the same time each night (11:00 pm). You'll note that Sirius doesn't appear above the horizon until the winter months. The Orion constellation, with its 3-star belt and stunning nebula, becomes beautifully centered in the southeastern sky. [Animation credit: Royce Bair, using screen captures from the planetarium program, Stellarium.]
Although the bright Central Bulge of the Milky Way is no longer above the horizon, early evening views (about 8:30 pm) of the northwestern night sky shows off the full length of the Milky Way's "Great Rift" — that Dark River that runs through one-third of the Milky Way's span. Milky Way and Organ Pipe Cactus photo by © Michael Braunstein
In this Sept 21st through December 21st animated GIF, the bright core of the Milky Way moves from the SSW to SWS before the Central Bulge disappears below the horizon. By the first day of Winter, only the Great Rift is still showing above the horizon in the western sky —but isolated, it make a very dramatic statement! These 92 frame sequences were all taken from 10:00 pm Stellarium screen captures. Your best views of the Great Rift will be during the beginning of the Astronomical Dusk (about 2-3 hours after the winter sunset). [Animation credit: Royce Bair]
Note: All examples are based on Northern Hemisphere positions between the 45th and 35th parallel.






Tuesday, November 24, 2015

Long-Distance Light Painting

A March Milky Way over Agathla Peak, Arizona - light painted from a distance of almost one mile ~ © Royce Bair
Long-Distance Light Painting usually requires the use of a spotlight. These lights use parabolic shaped reflectors to throw a narrow, concentrated beam of light over great distances. Because the beam is so narrow, the light must be keep moving, with overlapping brush-like strokes ("painting") during the camera exposure, otherwise the illumination of the distant object will be uneven.

Lights for light painting: #3, 4, 6, and 8 are spotlights — ranging from 1-million candlepower (#8) to 18-million candlepower (#3). This large spotlight was used to light paint Agathla Peak. Taken from page 77 of my ebook, "Milky Way NightScapes". (Click to enlarge.)
NOTE: a complete list of Light Painting Tutorials can be found here on this blog (scroll down to see all of them).

Angle of Light: In order to achieve a three-dimensional effect for your distant feature, the light painting is best done from a somewhat perpendicular angle to the camera. Flat, uninteresting lighting happens when one paints from behind or close to the camera.

The Glare Factor: Powerful spotlights are so intense that they will light up any dust or moisture in the air and cause it to reflect back into the eyes of the one doing the light painting —so much that they can barely see the distant feature they are painting. When this happens, communication and feedback with the person at the camera position is essential in order to produce effective and even light painting. Over long distances, this communication is usually done best with hand-held two-way radios, equipped with VOX or voice-activated control.

Calculating the Exposure: Top NightScape photographers usually try to do their light paint during the exposure for the sky, or a single exposure that includes incorporates both the sky and the lighted foreground feature. This requires that the light intensity match the brightness of the sky. If the exposure for the sky lasts 30 seconds (i.e., f/2.8, 30 seconds @ ISO 4000), then the light painting time must be adjusted to match that exposure. If distances are short, and the intensity of the light is high, light painting time may be only 5 to 10 seconds. With longer distances, the light painting time may often need to be increased to the full 30 seconds.

In the case of the Agathla Peak photo, a 24mm lens was used, requiring a shorter sky exposure (under 15 seconds, in order to prevent star trailing). Because of the nearly 1-mile distance and the shortness of the exposure (13 seconds), the intensity of the light source had to be increased to the use of a huge, 18-million candlepower spotlight.

One can get closer to the foreground feature to reduce the need for a more powerful light source, but not too close. If you get too close to your feature, the portions closest to the light may burn out (too light), and the portions furthest away may be too dark in your light painting. By keeping your lighting distance about four times greater than the size of your feature, you reduce the light falloff ratio. (In this Agathla Peak setup, the 1,500-ft. feature required that I be about 6,000 feet away —I chose a modest compromise of 5,000 feet.)

One Exposure or Multiple? Even if one wants to produce the NightScape photo in just one exposure (hey, it's a pride thing), multiple takes or exposures will often be preferred in order to increase one's chances for success. Blending the foreground portion of several exposures (via Photoshop layers) will enable you to even out your lighting, especially as distances increase and the glare factor escalates.

When light painting long-distance features, it's important to take several exposures. The foreground portions can later be blended together in post and improve the evenness of your lighting. Taken from page 104 of my ebook, "Milky Way NightScapes". (Click to enlarge.)
Stay in One Place: In order to blend foreground portions later in post processing, you must remain in one place —otherwise your image portions will not register or align. Since sky conditions are also constantly changing, you'll also improve your chances for a successful image by staying put and not moving your camera or tripod. This will allow you to pick and choose the best skies to blend with the best foreground exposures.

Staying in one place will increase your chances for a successful image combination of sky and foreground. Taken from page 105 of my ebook, "Milky Way NightScapes". (Click to enlarge.)
The final image combined the best sky (with light pollution from the town of Kayenta removed) with a foreground blend of the three best peak light paintings. Exposure for each image was 13 seconds (f/2.0, ISO 4000), using a 24mm lens on a Canon 5D Mark III. Light painting was for the full 13 seconds exposure. Taken from page 106 of my "Milky Way NightScapes" ebook. (Click to enlarge.)