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DPChallenge Forums >> Tips, Tricks, and Q&A >> RAW conversion problems
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02/24/2008 01:55:48 PM · #1
I was trying to edit some of my recent shots today and ran into this mess....

jpg
' . substr('//images.dpchallenge.com/images_portfolio/25000-29999/29334/120/650576.jpg', strrpos('//images.dpchallenge.com/images_portfolio/25000-29999/29334/120/650576.jpg', '/') + 1) . '
raw
' . substr('//images.dpchallenge.com/images_portfolio/25000-29999/29334/120/650577.jpg', strrpos('//images.dpchallenge.com/images_portfolio/25000-29999/29334/120/650577.jpg', '/') + 1) . '

I always use raw plus small jpg mode, with no in camera corrections applied, and have never had such a diffrence between the two. Other shots from that day (ones that where not taken in blue light) turned out fine. Any idea on what is causing this and how to fix it?
02/24/2008 02:01:43 PM · #2
All your blues are clipped.... lower your brightness, and up recovery a bit, and see what that does.
02/24/2008 07:57:30 PM · #3
I have tried a few different settings, including what you suggested and nothing seems to bring back the detail that is show in the jpg version.
06/08/2008 05:06:47 PM · #4
I dont know the answer. But I do have a similar question and found it redundant to open a new thread when you title so aptly described my plight.

I have only recently, within the past week, started shooting in RAW.

I get the sharpness within the Canon RAW software exactly how I want it...but when I view the JPEG..it is always MUCH less sharp. What am I doing wrong?

Thanks,
Eric
06/08/2008 06:26:58 PM · #5
@hi131:
As Option posted, the blue channel is badly clipped. If the detail is there in the JPEG, then it can be brought out in the RAW, though, to at least as great a degree.
Set your histogram so you see all three channels individually, and back down on exposure a little, then increase recovery. You may need to take recover all the way up, or nearly so. Try to minimize the clipping in the blue channel. You won't get rid of it all, but you may get rid of most of it.
If the end result you desire is the pure blue appearance, consider just working with the red and green channels, and adjusting color to replicate the blue light.
06/08/2008 06:28:29 PM · #6
Originally posted by egamble:

I dont know the answer. But I do have a similar question and found it redundant to open a new thread when you title so aptly described my plight.

I have only recently, within the past week, started shooting in RAW.

I get the sharpness within the Canon RAW software exactly how I want it...but when I view the JPEG..it is always MUCH less sharp. What am I doing wrong?

Thanks,
Eric


I'd guess that for some reason the sharpening value is not being applied to the JPEG output. That's just a guess, I'm not all that familiar with the Canon DPP software.
06/08/2008 06:35:32 PM · #7
OK, this is my understanding of things, I use raw all the time , nothing but.

When you take a shot in jpeg (use the rose above as example) the camera looks at image when saving and says all that blue has one value with a few variations, this is the compression happening, with raw it is one pixel one value.

now I use s7raw software for my fuji, and it is very powerful and free, I change things a lot and can save in many different formats.

What I notice about your shot is that it was a 10 seconds? why so long? also it looks like you have killed most of the detail in the shot with your settings.
What I suggest is you open the raw file again and this time choose reset all settings, including your curve, this way your starting fresh, save it as it is and then edit the settings and save again, hope this helps,
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