Old 01-16-2014, 04:28 PM   #1
JRMDC
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Default Too much or too little - but not contrast

Looks like I am not the only one to know which way to go, here noise instead of contrast.

http://www.railpictures.net/viewreje...76&key=5624036

so I did another pass of noise reduction, and get

http://www.railpictures.net/viewreje...80&key=1231441

I will freely admit I have no eye for noise.
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Old 01-16-2014, 04:54 PM   #2
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Looks a mess J. There is noise / grain present nearly throughout. The image quality has also been reduced down to nothing.

The joy of pushing the envelope on a shot that would have most likely been perfect 15 minutes earlier.

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Old 01-16-2014, 04:56 PM   #3
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Sky seems quite blotchy to me, even in the reduced noise version.
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Old 01-16-2014, 05:08 PM   #4
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That bad, huh? Jim, I thought I had done gaussian blur on the sky, now I don't remember.

I'll start over from scratch sometime, maybe this weekend, see what I can do, if anything.

I need a larger sensor! There was a recent sale, 6D plus 24-105 for $1900. Sadly, even that fantastic price is about $1000 more than I am willing to spend.
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Old 01-16-2014, 06:12 PM   #5
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Forget about the grain. The photo has impact - motion vs. stillness, light vs. dark. Everything else doesn't matter.
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Old 01-16-2014, 09:52 PM   #6
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The sky is an absolute mess... I dont know if you can fix it or not. Otherwise a nice shot, so that's unfortunate
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Old 01-17-2014, 12:28 AM   #7
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I'm pretty good at working out the noise from iso 1600 shooting on a crop sensor J, and I'd be willing to give it a to if you'd be inclined to send me the file.

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Old 01-17-2014, 01:09 AM   #8
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Email sent, Loyd, thanks!

I've done fine with ISO1600 also, bur for whatever reason, not this time (and this one is darker than most I have done at that ISO). It will be interesting to see what you do with it.
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Old 01-17-2014, 03:49 AM   #9
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Lightbulb

Quote:
Originally Posted by JRMDC View Post
.... I thought I had done gaussian blur on the sky.......

Just select everything above the bridge deck/top of train to the top of the frame and use the moire tool.

It is a simple, fast fix.
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Old 01-17-2014, 12:53 PM   #10
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Quote:
Originally Posted by BobE View Post
Forget about the grain. The photo has impact - motion vs. stillness, light vs. dark. Everything else doesn't matter.
I agree, Bob, especially since there have been SCs with more visible noise than J's shot. While the noise is there, I don't find it to be a distraction.
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Old 01-17-2014, 02:08 PM   #11
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Holl, I thought I did everything above the bridge, but perhaps I didn't smear it enough. I will look at it over the weekend.

Thanks, Bob and Jim. One more attempt will be made.
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Old 02-14-2014, 12:22 PM   #12
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And I eventually got around to it, and here it is.

Image © Janusz Mrozek
PhotoID: 469900
Photograph © Janusz Mrozek


What did the trick is that I discovered, or rather reminded myself of, a feature in raw conversion I had forgotten about or never known, noise reduction. Very effective in this case. I will be trying it for all my high ISO / dark shots.

Some of you may find the IQ not up to snuff, I don't know. While I lean toward the picky side on level - not as far as some but I do notice - I am not at all picky on noise in many cases. So opinions vary.
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Old 02-14-2014, 06:04 PM   #13
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Lightbulb

The higher end Canons have noise reduction as part of the exposure.

I don't know if your camera supports that, but it is quite helpful, except for that it takes time and eats battery life.

For instance, a 5 minute exposure will take 5 minutes to process in noise reduction.

BTW - Now is about the time that Jim will claim your photo is unlevel.

Last edited by Holloran Grade; 02-14-2014 at 09:48 PM.
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Old 02-14-2014, 09:44 PM   #14
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Quote:
Originally Posted by Holloran Grade View Post
BTW - Now is about the time that Jim will claim your photos is unlevel.
Geezuz, get out of my head.
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Old 02-14-2014, 10:52 PM   #15
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Quote:
Originally Posted by Holloran Grade View Post
The higher end Canons have noise reduction as part of the exposure.

I don't know if your camera supports that, but it is quite helpful, except for that it takes time and eats battery life.

For instance, a 5 minute exposure will take 5 minutes to process in noise reduction.

BTW - Now is about the time that Jim will claim your photo is unlevel.
Dark frame subtraction (i.e long exposure noise reduction) only has a pronounced effect on stuck / hot pixels, and does very little with amplitude induced noise as it is quite random in nature. It's also a feature that even cheap Canon bodies offer.

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