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Thread started 02 May 2010 (Sunday) 08:36
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7D noise and sharpening

 
roger767
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May 02, 2010 08:36 |  #1

Im having a dilemma the 7D is so noisy that when I want to sharpen the pictures it also sharpens the noise. Im having this experience at all ISO levels, even ISO 100. anybody have any tips?


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windpig
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May 02, 2010 08:42 |  #2

roger767 wrote in post #10106201 (external link)
Im having a dilemma the 7D is so noisy that when I want to sharpen the pictures it also sharpens the noise. Im having this experience at all ISO levels, even ISO 100. anybody have any tips?

post some pics. Be sure not to underexpose.


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roger767
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May 02, 2010 08:58 |  #3

full size
http://farm4.static.fl​ickr.com …70552137_af8300​8757_o.jpg (external link)

No sharpening
http://farm5.static.fl​ickr.com …71187610_793d16​8897_o.jpg (external link)

Sharpening (in Photoshop CS5)
http://farm5.static.fl​ickr.com …71188018_08bc3a​3486_o.jpg (external link)


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Larry ­ Weinman
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May 02, 2010 09:39 |  #4

I can't tell much on my monitor but are you using noise reduction and are you sharpening before or after using the NR. Sharpening should be done after using NR.


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stickshift
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May 02, 2010 09:41 as a reply to  @ Larry Weinman's post |  #5

Radius? Detail? Masking?


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tom ­ s
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May 02, 2010 10:08 |  #6

Try smart sharpen (100% 0.1) avoid USM and especially ''sharpen more''.


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District_History_Fan
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May 02, 2010 10:31 |  #7

roger767 wrote in post #10106201 (external link)
Im having a dilemma the 7D is so noisy that when I want to sharpen the pictures it also sharpens the noise. Im having this experience at all ISO levels, even ISO 100. anybody have any tips?

Why not try selective sharpening? There is no point in sharpening background noise.
Try this in Photoshop:
1/Duplicate the base layer (Control J, 8 bit only in Elements)
2/Sharpen the new layer to your liking (subject)
3/Create a new blank layer and drag it under the layer you just sharpened
4/Click on the top layer (sharpened) and press Control G to group it to the blank layer below
5/Click on the blank layer. Select a brush and "paint" the sharpening only on the areas of the image you want
6/ flatten the image layers


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pknight
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May 02, 2010 10:40 |  #8

District_History_Fan wrote in post #10106605 (external link)
Why not try selective sharpening? There is no point in sharpening background noise.
Try this in Photoshop:
1/Duplicate the base layer (Control J, 8 bit only in Elements)
2/Sharpen the new layer to your liking (subject)
3/Create a new blank layer and drag it under the layer you just sharpened
4/Click on the top layer (sharpened) and press Control G to group it to the blank layer below
5/Click on the blank layer. Select a brush and "paint" the sharpening only on the areas of the image you want
6/ flatten the image layers

Or, if you use Lightroom, use the sharpening mask to limit the effect to fine details, as defined by you.


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jessartisan
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May 02, 2010 10:45 |  #9

District_History_Fan wrote in post #10106605 (external link)
Why not try selective sharpening? There is no point in sharpening background noise.
Try this in Photoshop:
1/Duplicate the base layer (Control J, 8 bit only in Elements)
2/Sharpen the new layer to your liking (subject)
3/Create a new blank layer and drag it under the layer you just sharpened
4/Click on the top layer (sharpened) and press Control G to group it to the blank layer below
5/Click on the blank layer. Select a brush and "paint" the sharpening only on the areas of the image you want
6/ flatten the image layers

You can just add a mask the sharpened duplicate layer (alt/opt + mask icon in layers palette) and paint the sharpening in on the mask with a white brush.




  
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District_History_Fan
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May 02, 2010 10:51 |  #10

jessartisan wrote in post #10106655 (external link)
You can just add a mask the sharpened duplicate layer (alt/opt + mask icon in layers palette) and paint the sharpening in on the mask with a white brush.

Several different ways to skin a rabbit... ;)


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Ziffle
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May 02, 2010 11:01 |  #11

actually you are to obsessed with noise.
Your first image is very acceptable.
Actually i thought to myself - are you kidding me.

so far - lightroom 3beta2 has been the best match for the 7D.

Stop worrying - get off the forum for several days and go shoot!

Later,
_Mark


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Canis_Majoris
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May 02, 2010 12:19 |  #12

Ziffle wrote in post #10106720 (external link)
actually you are to obsessed with noise.
Your first image is very acceptable.
Actually i thought to myself - are you kidding me.

so far - lightroom 3beta2 has been the best match for the 7D.

Stop worrying - get off the forum for several days and go shoot!

Later,
_Mark

Totally have to agree with this comment.

I thought I was pretty anal, but this seems crazy to me. No offence intended though, each to their own.




  
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HKGuns
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May 02, 2010 12:23 |  #13

Ziffle wrote in post #10106720 (external link)
actually you are to obsessed with noise.
Your first image is very acceptable.
Actually i thought to myself - are you kidding me.

so far - lightroom 3beta2 has been the best match for the 7D.

Stop worrying - get off the forum for several days and go shoot!

Later,
_Mark

Bingo! Ding Ding, we have a winner!




  
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gabebalazs
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May 02, 2010 13:46 |  #14

You are also trying to sharpen a subject that has very little contrast. You can sharpen the heck put if it, it still won't look impressively sharp because contrast and sharpness often go hand in hand. This lacks contrast (due to the nature of your subject), so any aggrassive sharpening will not be impressive.


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7D noise and sharpening
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