|Final image is a blend of two exposures and several post processing steps in Photoshop ~ © Royce Bair|
NightScape Exposing and Post Processing Tutorial. Last autumn I photographed the historic, 1896 one-room Fruita schoolhouse in Capitol Reef National Park. Here is a step-by-step tutorial of that process.
|Image #1. Original camera raw exposure with light painting. F/2.8 • 20 seconds • ISO 6400 • 3800ºK White Balance. Two Z96 LED panel lights were used to do stationary light painting (during the 20" exposure) on the schoolhouse —one was about 100 feet away, to the left, and the other was behind the building, shining through a window to simulate a kerosene lantern inside the schoolhouse. Orange filters (3200ºK) over the lights were used to create a warm color balance. Light intensity on the schoolhouse was reduced by a -2 EV (using the dimmer switches on the panel lights). Canon 5D Mark III with Tamron 15-30mm lens @ 15mm. © Royce Bair|
|Image #2. The night sky has been selected and a contrast producing S-Curve adjustment has been applied via Photoshop's Curves (using a Curves adjustment layer). © Royce Bair|
|Image #4. A blend of the starlight exposure (selecting only the foreground portion) and Image #2. The blend is made using Photoshop layers. © Royce Bair|
|Image #5. Final image is partially corrected for keystone distortion that comes from aiming a wide angle lens upwards to include more sky in one's composition. Correction is via Photoshop's Edit > Transform > Distort menu. Partial correction causes some cropping of the image. Full correction can produce an architecturally correct image that is not always aesthetically pleasing —which also results in even more cropping to the image. Some additional color correction was added to this final image. More technical details and explanations for shooting, planning, and processing are in my e-Book. © Royce Bair|