"blobbiness" in dark areas

~TRIARII117 Jan 31, 2013 Hobbyist Photographer

not really sure how else to explain it, but often times, especially in more landscape shots and not so much in macro/close ups, i get these weird areas of red and green blobs of sorts in darker areas (usually things in the foreground for a silhouette). pretty sure they are not chromatic aberrations, which the lens i use does have some problems with, but that's a different story. they usually go away by adjusting the contrast in photoshop, but i would like to know if there is any way to avoid them before having to touch them up on the computer.

i use an olympus E-PM1 with just the kit lens (at least until i get the OM adapter)

thanks in advance

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Devious Comments

~MyLifeInFocus Feb 1, 2013 Hobbyist Photographer

Do you have an example to show? That'd be helpful.
I'd agree with ~Shurakai-Stock but the only other thing I could think of would be fringing from too high an ISO. Hope this helps

*xLadyCinnamonx Jan 31, 2013 Hobbyist Photographer

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~Shurakai-Stock Jan 31, 2013 Professional Photographer

That’s a type of chromatic noise, produced by your sensor. There’s really nothing you can do about that except to learn to reduce it in post.

~TRIARII117 Jan 31, 2013 Hobbyist Photographer

thanks. thats what i figured. i also noticed it appears more in the windows photo viewer than in gimp or photoshop (before editing) so im assuming it renders colours differently than those.

~Shurakai-Stock Feb 1, 2013 Professional Photographer

If you’re viewing RAW files, then yes, each program will render it differently, including noise reduction. Photoshop and Lightroom (which share a common RAW processing engine) have fairly aggressive noise reduction algorithms. I suspect Windows Viewer does not. My personal favourite for processing RAW files is Capture One, which has an excellent noise reduction feature as well.

~TRIARII117 Feb 1, 2013 Hobbyist Photographer

well these are just in jpegs. i did a little reading too, windows photo viewer renders colors really badly, whereas GIMP and photoshop do so a lot better.

i'll look into those and see what comes out. thanks

~Shurakai-Stock Feb 2, 2013 Professional Photographer

Maybe try switching over to RAW, or at least RAW+JPG, and have a go at doing your own developing. You may ultimately find you like the results more.

~KingStephenArthur Jan 31, 2013 Student Photographer

I think an example would be needed to see what's goin on. at least for me, lol.

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