Question about focal length and vignetting

11 months 3 weeks ago #660457 by Chris Grimm
Let me ask you this, if you have a lens that has some vignetting at 16mm when you stack filters with it.  Is that a lens 'thing', OR focal length thing?  Meaning if I got another lens that crossed 16mm focal length, at 16mm on that new lens, would I have the same vignetting when stacking those filters?


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11 months 3 weeks ago #660467 by Nikon Shooter
There is a potential problem everywhere, Chris:

1, a shorter focal length needs wider filters
2, the filters / assembly should be thinner

Given a sensor size, any focal length is the same
but the barrel construction specifications will va-
ry from makers.

Light is free… capturing it is not!
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11 months 3 weeks ago #660472 by effron
A 16mm lens will definitely vignette with stacked filters, maybe even one of "normal" size.

Why so serious?
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11 months 3 weeks ago #660475 by fmw
Stacking filters is ill advised.


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11 months 3 weeks ago #660487 by Chris Grimm
First off, thanks for all the responses. 

I think I didn't ask my question correctly.   If you have vignetting taking place at 15mm on one lens when filters being used. Would vignetting take place with another lens at 15mm making it a focal length factor vs a lens thing?

Does that make sense? 


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11 months 3 weeks ago - 11 months 3 weeks ago #660489 by effron
In my experience, a filter holder (lee type) vignette used on a 15mm (full frame camera) will occur on all lenses. I use NDs on wider lenses but need to find another way, like holding them by hand in front of the lens....

Why so serious?
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11 months 3 weeks ago #660512 by Chris Grimm
Well that's a bummer.  Was hoping that it was a 'lens thing'.  


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11 months 3 weeks ago #660513 by Shadowfixer1
Hard question to answer but wider lenses are prone to vignette. In my opinion, it depends on the design of the lens as to how severe it is. It's not just about focal length but with a lens that wide it will almost always vignette with stacking. 

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11 months 3 weeks ago #660515 by Chris Grimm
So, just to dig a little further on this topic.  At what focal length does vignetting pop its ugly face into the mix most of the time?  Seeing that we are chatting about this, might as well get better understanding.  


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11 months 3 weeks ago #660518 by Nikon Shooter

Chris Grimm wrote: At what focal length does vignetting pop its ugly face into the mix most of the time?


At any focal length, Chris… depending on makes quality.

High end lenses will tend to be more prone at very wide
angles and lower end ones almost anywhere.

Stacking filters on the front thread can modify greatly
the minimum limit in terms of focal length.

Light is free… capturing it is not!
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11 months 3 weeks ago #660543 by effron

Why so serious?
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