Image Processing Techniques — Comparison of HDR Programs
A comparison of different HDR (high dynamic range) programs for rendering a series of images 7 images taken at different exposures (+3, +2, +1, 0, -1, -2, -3 EV). The programs compared are Photoshop CS5, Photomatix Pro, and Nik HDR Efex Pro. I should note that I am not able to run the Nik HDR Efex Pro on my desktop computer as it causes Photoshop to crash. I had to use a different computer to process the images using the Nik HDR Efex program. The images were taken during a workshop in Hawaii in 2007 with a Nikon D2xs and 105 mm f/2.8 VR macro lens.
November Full Moon — Also known as the Beaver Moon or Harvest Moon. 1) Image acquired with a Nikon D3x and 400 mm f/2.8 with TC-E 20 teleconverter (ISO 100, 800 mm, f/8, 1/250 sec). 2) Image acquired with a Nikon D3s and 400 mm f/2.8 with TC-E 20 teleconverter (ISO 200, 800 mm, f/16, 1/100 sec).
Beach at Waipi’o Valley. Comparison of RAW image converters.
Waipi’o Valley is located along the Hamakua Coast on the northeastern coast of the Big Island of Hawaii. The image was taken on day 3 of Thom Hogan’s 2007 Hawaii Photography Workshop with a Nikon D2xs and 12-24 mm f/4 lens (ISO 100, 17 mm, f/11, 1/200 sec). Four different programs were used to render the RAW image: 1) Capture NX2, 2) Photoshop CS5 with Camera Raw 6.2, 3) Capture One Pro 5, 4) DxO 6.5. The images were rotated 2.6° to level the horizon, sharpened with Focus Magic, and then converted to jpg and sRGB with Photoshop CS5. I am interested in feedback regarding the different renderings.
Waxing Gibbous Moon (97% full). Image taken with Nikon D3x camera and Questar 7″ telescope (ISO 200, 1600 mm, f/16, 1/200 sec). Image processed with Capture One 5, Photoshop CS5, Focus Magic, Topaz DeNoise.
Gibbous Moon. Image taken with Nikon D3x camera and Questar 3.5″ telescope (ISO 100, ~ 1600 mm, f/16, 1/60 sec). Processed using Capture One Pro 5 and Photoshop CS3. With the smaller telescope used mirror up to dampen mirror vibrations for 30 sec prior to the image being taken.