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Frequent Contributor
Posts: 113
Registered: ‎01-20-2016

vignetting on 150-600 sigma and tamron

Hello

 

I am writing to you to ask what are the differences in vignetting in these two lenses.?

 

has any one chosen the tamron over the sigma s or c because of this issue.

 

Also would any one go for the c over the s?

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Respected Contributor
Posts: 1,861
Registered: ‎12-02-2012

Re: vignetting on 150-600 sigma and tamron

[ Edited ]

Some things you have to see. A verbal description will not be worth much. 

 

For or stuff like this on camera lenses there is a lens comparison tool on The Digital Picture. You can see sharpness or vignetting, etc. side by side from 2 different lenses on several different cameras at different apertures and compare for yourself.  

Scott

Canon 5d mk 4, Canon 6D, EF 70-200mm L f/2.8 IS mk2; EF 16-35 f/2.8 L mk. III; Sigma 35mm f/1.4 "Art" EF 100mm f/2.8L Macro; EF 85mm f/1.8; EF 1.4x extender mk. 3; EF 24-105 f/4 L; EF-S 17-55mm f/2.8 IS; 3x Phottix Mitros+ speedlites

Why do so many people say "FER-tographer"? Do they take "fertographs"?
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VIP
Posts: 13,303
Registered: ‎12-07-2012

Re: vignetting on 150-600 sigma and tamron

"I am writing to you to ask what are the differences in vignetting in these two lenses.?"

 

Virtually all big super teles vignette at wide open.  It is no problem as it is easily handled in post. There isn't a nickle's worth of difference in IQ between any of these super zooms.  If you have to get down to pixel peeping, the SIgma S is best.  I think I have already told you that, though.  I have and I use all of them.  

I did choose the Sigma S over the others for my keeper lens.  I may sell the others.  I choose it for a real reason and not which vignettes less.

If you would have asked which one is the best, I would have said the SIgma S.  But I believe I already told you that, also?   Yes, it has slightly better IQ but it has so many other feature's that make it the best.  Weight is not one of them if you are sensitive to that.

EB
EOS 1DX and 1D Mk IV and several lenses!
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VIP
Posts: 10,735
Registered: ‎08-13-2015

Re: vignetting on 150-600 sigma and tamron

"Virtually all big super teles vignette at wide open.

 

Sigma_150-500_Vignetting.PNG

 

Some don't need to be wide open, either.  But, most anything short of catastropic failure seems to be correctable.

 

Sigma_150-500_Vignetting.LR6.PNG

 

Big difference.  What I have noticed with that lens is that it seemed to vignette on underexposed shots.  Or at least, with shots that are not shot "to the left".  Letting the camera decide one of the legs of the exposure triangle usually resulted in vignetting, regardless of focal length or aperture.

 

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"Doctor told me to get out and walk, so I bought a Canon."
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Honored Contributor
Posts: 5,558
Registered: ‎06-25-2014

Re: vignetting on 150-600 sigma and tamron


@Waddizzle wrote:

"Virtually all big super teles vignette at wide open.

 

Sigma_150-500_Vignetting.PNG

 

Some don't need to be wide open, either.  But, most anything short of catastropic failure seems to be correctable.

 

Sigma_150-500_Vignetting.LR6.PNG

 

Big difference.  What I have noticed with that lens is that it seemed to vignette on underexposed shots.  Or at least, with shots that are not shot "to the left".  Letting the camera decide one of the legs of the exposure triangle usually resulted in vignetting, regardless of focal length or aperture.

 


This will probably sound goofy, but I think I might have corrected that picture only halfway. The severe vignetting in the original is certainly intrusive, but the fully corrected version, with the perfectly flat background, is boring.

Bob
Philadelphia, Pennsylvania USA
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VIP
Posts: 13,303
Registered: ‎12-07-2012

Re: vignetting on 150-600 sigma and tamron

"... it seemed to vignette on underexposed shots"

 

Vignetting will appear worse when the shot is underexposed.  It isn't the lens getting worse.  It is the exposure error getting worse.

 

"Some don't need to be wide open, either.  But, most anything short of catastropic failure seems to be correctable."

 

Absolutely.

 

"... regardless of focal length or aperture."

 

Generally super tele zooms don't exhibit the problem as the aperture is stopped down.  On some it is not a concern with just one stop from wide open.  Even prime teles can and do show this issue, too.

 

EB
EOS 1DX and 1D Mk IV and several lenses!
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VIP
Posts: 10,735
Registered: ‎08-13-2015

Re: vignetting on 150-600 sigma and tamron

[ Edited ]

"This will probably sound goofy, but I think I might have corrected that picture only halfway. The severe vignetting in the original is certainly intrusive, but the fully corrected version, with the perfectly flat background, is boring." 

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I agree.  The sky that day was absolutely clear, and a rich blue.  The correction software took away the vibrance of the blue sky.  I don't like it, either.  So much so, that I sold the lens.  Correction may have been cleaning up vignetting, but it was introducing stuff that I didn't like.

 

I'm torn between the 300mm or 400mm "L" primes, or going for another long zoom like the 100-400mm, or a 150-600mm,

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"Doctor told me to get out and walk, so I bought a Canon."
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VIP
Posts: 13,303
Registered: ‎12-07-2012

Re: vignetting on 150-600 sigma and tamron

"The correction software took away the vibrance of the blue sky."

 

Obiviously, it wasn't PS?   BTW, what lens was it exactly.  I thought you meant the 150-600 Tammy or Siggy?

EB
EOS 1DX and 1D Mk IV and several lenses!
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VIP
Posts: 10,735
Registered: ‎08-13-2015

Re: vignetting on 150-600 sigma and tamron

I used LR6 to correct the vignetting.  I didn't try to add anything back.    That was before and after the click.

 

The camera, shot settings, focal length, and lens are identified in the screen shots, it was the Sigma 150-500mm.

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"Doctor told me to get out and walk, so I bought a Canon."
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VIP
Posts: 13,303
Registered: ‎12-07-2012

Re: vignetting on 150-600 sigma and tamron

"...  it was the Sigma 150-500mm."

 

Oh, yes the Sigma 150-500mm.  I have a love/hate relationship with that lens.  I have had three of them.  The one I have now is very good.  Good mind you not great but for that lens, good is great!

 

aa.jpg

bb.jpg

cc.jpg

 As you can see PS did a nice job with any vignette.  Most people would be fine with a lens like this.

EB
EOS 1DX and 1D Mk IV and several lenses!
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