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Archive 2008 · Canon 40D (RAW vs sRaw Problem)

  
 
Maineguy
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p.1 #1 · Canon 40D (RAW vs sRaw Problem)


I recently up-graded from the Canon 20D to the 40D. I accidentally set the camera on sRaw (7.1 mp) instead of on RAW (10.2 mp) and did a commercial interior magazine shoot. Some of the images are going to be printed full-page in country living type magazine. I need to create the best quality Tiff images in Photoshop CS2 that I possibly can from these small original files. I would appreciate ANY POST PROCESSING SUGGESTIONS as to how to "res" these images up and sharpen them in PS CS2 in order to get my self out of a jam. I do NOT have any other software besides CS2.


Jan 09, 2008 at 05:31 PM
CTYankee
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p.1 #2 · Canon 40D (RAW vs sRaw Problem)


PS CS2 upsizing does very well. No need to do the incremental upsizing like in years past.

Sharpening, well that depends on the ISO and image. I like 300, 0.7, 6 for low ISO prints that you want to look sharp.



Jan 09, 2008 at 06:01 PM
tomrock
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p.1 #3 · Canon 40D (RAW vs sRaw Problem)


You'll have to do the raw conversions with DPP from Canon. CS2 won't open the 40D sRaw files even if you turn them into DNGs as far as I know. DPP is good, though.


Jan 09, 2008 at 06:07 PM
CTYankee
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p.1 #4 · Canon 40D (RAW vs sRaw Problem)


Ah, yes....sRAW and CS2. Other options for convertion:

Lightroom free trial
Aperture Free trial
Adobe DPP of course





Jan 09, 2008 at 06:16 PM
Andrew W
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p.1 #5 · Canon 40D (RAW vs sRaw Problem)


That isn't cool. Anyway, you should get more than enough detail out of a 7MP file for a full magazine page... if you aren't cropping much. But aren't sRAW files only 2.5mp, not 7mp? In that case, it seems that you are really screwed...
Maybe try to get a copy of Genuine Fractals if you can...

Edited on Jan 09, 2008 at 06:30 PM



Jan 09, 2008 at 06:23 PM
amalgam
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p.1 #6 · Canon 40D (RAW vs sRaw Problem)


sorry to be the bearer of bad news but it's a 2.5MP image (1,936 x 1,288). The file size is approximately 7MB.

http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&fcategoryid=139&modelid=15653#ModelTechSpecsAct

Hopefully they turn out ok.



Jan 09, 2008 at 06:38 PM
CTYankee
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p.1 #7 · Canon 40D (RAW vs sRaw Problem)


The old 1D was the workhorse of sports photographers and was what SI used to fill their pages with photos. All 4MP. So it certainly possible to get something good...not great. If the images you have are technically sound then they should blow up well.


Jan 09, 2008 at 07:01 PM
OutsideShooter
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p.1 #8 · Canon 40D (RAW vs sRaw Problem)


Peter, open one image and Duplicate, Image>Duplicate, Close the original. Now drag down to make a new layer. Now you are not affecting the original. You said Full size in Coutry Living type magazine, so I'm estimating 10x14" ought to be more than sufficient.

Right-Click on Image>Image Size. Un-check Resample box, and set the Resolution in the Document Section to the desired type, 360 for inkjet, 300 for off-set printing. This will change the WxH to reflect the Resolution change but without additional interpolation. Now re-check the Resample box & up rez by adding pixels in the Pixel Dimension Section until you have the right print size. Be sure you are using Bicubic Sharper if you are looking for detail.

You can't lose anything by trying this. My detail was on a 12MB Raw which started out as a 4368x2912 pixels at 240 Resolution. I then had no choice but to open in ACR. There I had the Resolution set at my common 320 Resolution but I reduced the file to 1.6MB. The final TIFF opens at 89MB with a 4400x2933 pixel count and prints with excellent clarity.

Let me know how it prints out on a test run.




Jan 09, 2008 at 07:27 PM





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