Why is the blue of the sky so noisy in this photo? Any suggestions?
Rubberhead Goldmember  1,899 posts Likes: 1 Joined Feb 2006 Location: South Carolina's Lowcountry More info | Jan 29, 2008 07:03 | #1 Why is the blue of the sky so noisy in this photo? Any suggestions? EQUIPMENT: 40D | Rebel XT | EF 70-200mm f/4L IS | EF-S 10-22mm | EF 28-135mm IS | EF-S 18-55mm IS | EF 50mm 1.8 - flickr
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nwyman Cream of the Crop  More info | Jan 29, 2008 07:06 | #2 just guessing, 'cause no expert here, but looking at your EXIF, I think you had too much ISO for the rest of your settings. Maybe you'd have been better off to rduce the ISO to 200 and then close down aperture a bit to lower that extremely fast shutter speed? EOS 6D, SX50HS, Tamron 150-600
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hTr Cream of the Crop  22,453 posts Joined Nov 2006 Location: Northern Alabama More info | Jan 29, 2008 07:24 | #3 RH gary
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MrZoom Senior Member 287 posts Joined Jan 2008 Location: Orange County California More info | Jan 29, 2008 08:32 | #4 Shooting in RAW would also help. You're picking up both sensor noise and jpeg artifacting. Ever since switching to shooting in RAW I seldom if ever pick up that much noise against blue skies. Canon's DPP 3 has a pretty good noise removal tool if you go that route. The advantage of shooting RAW also gives better dynamic range than jpeg which is always a plus. Ken - Canon Gear and precious L glass lenses.
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canonloader Cream of the Crop  More info | Jan 29, 2008 08:34 | #5 I have noticed the same thing with my 40D blue skies. Mitch- ____...^.^...____
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Rubberhead THREAD STARTER Goldmember 1,899 posts Likes: 1 Joined Feb 2006 Location: South Carolina's Lowcountry More info | Jan 29, 2008 11:06 | #6 Thanks guys - all are valid points (sharpening, ISO and jpeg artifacting). I need to go back and look at the unaltered image and see if it's as noticable. EQUIPMENT: 40D | Rebel XT | EF 70-200mm f/4L IS | EF-S 10-22mm | EF 28-135mm IS | EF-S 18-55mm IS | EF 50mm 1.8 - flickr
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canonloader Cream of the Crop More info | Jan 29, 2008 11:12 | #7 You also have noise in the goose, so I'm betting it's from cropping and resampling. Mitch- ____...^.^...____
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KeithR Goldmember 2,856 posts Likes: 1 Joined Aug 2006 Location: Blyth, Northumberland, NE England More info | Jan 29, 2008 13:19 | #8 canonloader wrote in post #4807003  I have noticed the same thing with my 40D blue skies. Actually, I find my 40D to be much better than my 30D here.
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cfcRebel Cream of the Crop  10,252 posts Joined Feb 2005 Location: Austin, TX More info | Jan 29, 2008 13:20 | #9 Prevention(limit your cropping, use appropriate exposure and ISO) is always better than cure(noise removal tool). Fee
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KeithR Goldmember 2,856 posts Likes: 1 Joined Aug 2006 Location: Blyth, Northumberland, NE England More info | Jan 29, 2008 13:25 | #10 canonloader wrote in post #4807934 I'm betting it's from cropping and resampling. Me too...
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canonloader Cream of the Crop More info | Jan 29, 2008 13:26 | #11 Actually, I find my 40D to be much better than my 30D here. We don't get a lot of blue sky here, and I got rid of the 30D late last year, but I don't remember it producing a lot of noise at ISO 400. The first 40D blue sky shot I opened kind of jumped out at me for noise, if you know what I mean. Mitch- ____...^.^...____
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