Numero4
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Posts: 128
Joined: Tue Feb 02, 2010 9:09 pm

How To Correct Vignetting When Working In Jpeg?

Wed Sep 01, 2010 6:18 pm

Hi all,

I recently bought a Nikkor 55-200mm VR and noticed this lens created a noticeable amount of vignetting, especially at higher zoom (ca. 100mm and up). I since took a high number of photographs of great days of spotting and would like to "fix" them in PS. I know how to fix when working in RAW, my question is: is this fixable on jpeg files?

Also, is there a rejection for "Vignetting" when submitting photos on the database of a.net?

On a side note, I had borrowed a friend's 55-200mm non-VR last week and after having worked with it for a few days, I am pleased that the VR version creates quite a bit LESS vignetting than the non-VR version.

Any input is appreciated  

--Etienne
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dvincent
Posts: 1486
Joined: Mon Jan 01, 2007 9:53 am

RE: How To Correct Vignetting When Working In Jpeg?

Wed Sep 01, 2010 6:19 pm

You can use the Lens Corrections filter in PS, or you can open the JPEG up in Adobe Camera RAW (this is possible) and fix it in there.
From the Mind of Minolta
 
n314as
Posts: 89
Joined: Tue Mar 28, 2000 1:30 pm

RE: How To Correct Vignetting When Working In Jpeg?

Wed Sep 08, 2010 5:05 am

Shoot lower speeds..........vignetting is usually associated with shooting lower ISO and shooting at very high speeds....especially shooting with film. This was a problem with slide film for those who did not know how to shoot it. Anyways, you should experiment with lower shutter speeds. It is good for props turning and lower speeds avoids vignetting. One other possible solution is that you may have a low end telephoto with very small aperture. This also causes vignetting. Try ISO 100 (speeds of 1-200 to 1-400). All you need is steady hands.
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cpd
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RE: How To Correct Vignetting When Working In Jpeg?

Thu Sep 09, 2010 12:23 am

Quoting n314as (Reply 2):
vignetting is usually associated with shooting lower ISO and shooting at very high speeds....especially shooting with film

Some lenses, even extremely expensive high quality ones do have vignetting - especially on a 36x24mm camera. The vignetting is not visibly different for me regardless of shutter speed. I often use shutter speeds as low as 1/10sec - and always use ISO100.

The simplest way to deal with it is to open the JPEG image as Camera Raw (use Open as command in Photoshop) and use the lens corrections available to you there.

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