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20D Question/Issues on SHARPNESS
Old 12-27-2005, 07:39 PM   #1 (permalink)
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OK, this may be the wrong forum, so admins move if you feel inclined...

I am not a tekkie...don't really care to be either...so I call out to the tek guys. especially the Canon techs...

I have posted to versions of the image below to illustrate my questions and concerns. For some reason, my 20D is just not as sharp as I think it should be. It very well may be operator error, but I don't think so..

The first image I shot in RAW and when processing in the PS RAW convertor I set the sharpness level to 100. I then processed fully in PS at full size(cropped at 9 x 12 for the model)then "SAVE FOR WEB" and this is the final result. It appears slightly on the soft side to me...


This version I "SHARPENED EDGES" in PS AFTER the save for web action an now it appears OVER sharp in my opinion...


I have heard that there are some firmware upgrades for the 20D, but I really do not want to start playing with that if I can avoid it...or do I??

In PS is there a way to adjust the SHARPEN and SHARPEN EDGES filter or is it a preset action and what you see is what you get??

My large files for print seem to process fine as far as sharpness is concerned, but these seem to be off a tad...any suggestions would be appreciated...

AND YES I know her left foot is contorted...don't know how those girls do that either...looks painful.. [img]/ubbthreads/images/graemlins/smirk.gif[/img]
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Re: 20D Question/Issues on SHARPNESS
Old 12-27-2005, 07:47 PM   #2 (permalink)
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Well when you figure it out, let me know. I've noticed that about the 20d as well. Granted I feel the color is noticably richer moving up from the 10D. But yes, Something does seem "not right" about my shots as well.
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Re: 20D Question/Issues on SHARPNESS
Old 12-27-2005, 08:11 PM   #3 (permalink)
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Hi Bobby....try selective sharpening in PS using the red channel only.
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Re: 20D Question/Issues on SHARPNESS
Old 12-27-2005, 08:19 PM   #4 (permalink)
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Marty...without trying to sound stupid...HOW do I do that?? Other than cropping and removing a pimple or wrinkle, I am PS challenged...I can adjust levels and curves a bit, but that is my PS skills limit [img]/ubbthreads/images/graemlins/blush.gif[/img]...Can you walk me through it or is it too detailed of an explanation...
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Re: 20D Question/Issues on SHARPNESS
Old 12-27-2005, 08:24 PM   #5 (permalink)
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Let me woof down my pizza, so as not to get tomato paste on the keyboard, and I'll get back with you in about twenty!
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Re: 20D Question/Issues on SHARPNESS
Old 12-27-2005, 08:26 PM   #6 (permalink)
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Works for me...I'm eating pizza as well...Meat lovers special, with anchovies
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Re: 20D Question/Issues on SHARPNESS
Old 12-27-2005, 08:34 PM   #7 (permalink)
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Bobby,

First of all, the pictures are great! The answer is also an easy one. The simple fact is that JPG images are files which are compressed to reduce file size. When reducing, something has to be given up. In the case of JPGs, quality is reduced! When you save for web, the image quality is reduced even further! Simply saving your images as a tiff file will eliminate the lossless format and retain your quality image. I would also recommend studying your camera and seeing if their is a compression adjustment setting for JPGS. On my Nikon D2X, I can adjust for three levels of compression / quality.


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Re: 20D Question/Issues on SHARPNESS
Old 12-27-2005, 08:44 PM   #8 (permalink)
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Brad, thanks for replying...I will try to save as a .tif and see if I notice a difference...As for the jpeg compression issue within the camera, I shoot in RAW most of the time...wouldn't that over ride any of those type settings...
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Re: 20D Question/Issues on SHARPNESS
Old 12-27-2005, 09:02 PM   #9 (permalink)
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Sharpen and Sharpen Edges really isn't what you want. The command in the Sharpen section of PS is Unsharp Mask.

How much really depends on how the image will be displayed or printed. For print I use in the Unsharp Mask dialogue Amount 300, Radius 1.0 and Threshold 4. That will look over the top on the screen, but will print fine. For something like the web try Amount in the 75 to 150 range after you save for the web.

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Re: 20D Question/Issues on SHARPNESS
Old 12-27-2005, 09:35 PM   #10 (permalink)
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When posting to the web, you're almost always going to have to use JPG. You won't find you'll have much luck posting Tifs to the web. Since the original poster was shooting RAW, the JPG settings on the camera will have no effect on the processed photo. As a general rule, one will get much better results from any digital camera by shooting in RAW, and then processing in one of the good RAW converters. Most people who have done a lot of RAW processing choose never to use the sharpening provided by the RAW converter, but wait to do that in Photoshop where more powerful sharpening tools are available.
Cheers,
rfs


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