(Note: The images were not included in the original post, which instead included text links only. The images are now part of the post.)

I just took a break and had time to play with a Canon 5Ds raw file that I found on the web. (Anyone wanting to look at files from the 5Ds should head on over to that link right now — there are something like 90+ files to look at.) It was made with the 5Ds at ISO 100, f/8, 1/400 second. It isn’t clear what lens was used, but it appears that it could have been either the 50mm f/1.8 STM lens or the 24-70mm f/2.8 II.

I opened the file in ACR. I made no adjustments to curves, color, etc. I let ACR automatically correct for CA. Default ACR sharpening used at 15 with masking at 50.

I brought the converted file into Photoshop as a smart object to allow for non-destructive re-editing in Adobe Camera Raw (ACR). I confirmed that shadow areas along the waterline of the boats have luminosity values of 0 — I did this by checking the Lab color representation and watching the L value, which hits 0 in several spots. The general area is shown by the rectangle in the following image: Continue reading Looking at Canon 5Ds Raw Files: Noise and Dynamic Range →