A couple of days ago Bob Sullivan said this: > Yes, the K-1 came with lens corrections turned on, but it doesn't seem > to effect processing time in camera.
Then yesterday in his eNewsletter Tim Grey strongly advocated for the use of in-camera noise reduction for long exposures. Well, earlier in the week I had been going through the menus on the K-1 doing the initial setup. My longstanding bias has been to turn off lens corrections, noise reduction, Highlight and Shadow Correction. And now in addition I get to turn off Clarity and Skin Tone adjustments. After seeing Bob’s and then Tim’s unrelated comments, I thought I would try and think this through. IIRC, one of the bases for my bias against such own-camera processing was that they only affected jpg files anyway, I don’t shoot jpg, so why risk processing time on something that has no value. Another of my assumptions has been that Lightroom or similar on my full-up computer is able to deploy more sophisticated image processing routines than is feasible on the ittybitty processor in the camera. I dug into the K-1 manual and also went back to the K-3 manual. These are my “findings”: 1. With the K-1 the manual says that the lens correction information is saved in a separate file when shooting RAW, and that information is applied during [in-camera] processing of the RAW to jpg image. So, irrelevant unless you shot jpegs. Turn Off. 2. I find no indiction of what happens to Clarity and Skin Tone adjustments but suspect that they are jpeg only. Turn Off. 3. We know that HDR in-camera is a merging of multiple images, so here both RAW and jpeg files are affected. Turn Off, mostly. 4. Pixel Shift and Astrotracer functions also change the RAW and jpeg image capture. Turn Off except for special unique circumstances. 5. Long-exposure and High-ISO noise reduction change the images. I am not sure about this one. 6. Highlight correction? Shadow correction? Do these affect the RAW image or just jpeg? Do they do any harm? Do they do more good than you could accomplish with a simple slider in Lightroom? I would appreciate feedback on the validity of my assumptions and my conclusions. stan -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
