Demosaicing intro'd w / LR3.2 sharpening with 7 d. Assistance requested.

All,

I hate pixel peeping, but nevertheless, it seems that there is demosaicing implemented in new methods of sharpening that I don't see in the Canon DPP or elsewhere CS3 USM or sharpness.  Pictures to follow, and I can provide if necessary original RAW file.  If I do this wrong comparison, I am open to all comments and corrections.  All images are 100% crops of Center of an image of the 7 d.  No adjustments to exposure, clarity, etc. 200 ISO image, Canon 7 d, Canon 70-200 2.8 IS

Image 1: No image sharpness applied out of LR - Note the area of two thin bands white sleeve on the left arm of the player under patch - smooth flowing front to rear

IMG_9888_NoRawSharpening.jpg

Image 2: Above the image but too much cooked with USM - are still sleek

IMG_9888_CS3_USM.jpg

Image 3: Treated with Canon DPP and almost pushed sharpening original RAW file max - always smooth

IMG_9888_DPP_HotSharpening.JPG

Image 4: RAW image processed in LR with Amt 40, radius of 0.8, retail 25, masking 20 - note demosaicing (stairsteppng) in this area.  Also appears in the folds on the fix

IMG_9888_Amt50RadiusPoint8Detail25Masking20.jpg

Image 5: The JPEG above put in CS3 with Smart sharpening minimum applied - worse (as expected)

IMG_9888_CS3_Smart_Sharpen.jpg

Image 6: #4 Image into CS3 transfers and minimal USM applied - worsens the condition (as expected)

IMG_9888_CS3_USM.jpg

As I added the images, I don't know the difference between the first three images and the last three are also very clear because they are on my Dell Ultrasharp 24 ", but I assure you they are there.  I tried the lower amounts of sharpening off LR, but the demosaicing is always created.

Any thoughts, different ways of approach, will etc. are appreciated.

Jay S.

The stairs, walk artifacts on edges is a known issue with the new demosaic (2010 process) in LR. There has been several discussions on this. I see it a lot. Typical examples would be grass leaves, small branches, etc. If you care you can get rid of them by downgrading to the 2003 process. After my experience however, images tend to print better even with the aliasing if you blow on crazy size. The blur of the printing process tends to mitigate this. YMMV, however.

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