Vignetting with FA 31 Limited

**Buffy** · 03-25-2008, 04:54 AM

Some of my recent shots with the FA 31 showed some small vignetting, and I am assuming it's because I had too many filters on it--the UV I forgot to remove, a polarizer, and a red 25. Has anyone else ever had this problem, and am I right in assuming two filters is the limit?

Buffy

thePiRaTE!! · 03-25-2008, 05:15 AM

I've not noted the characteristic myself. I recommend taking off the filters and try a shot wide open against a white wall, then you'll know if your copy is sound.

aegisphan · 03-25-2008, 07:56 AM

Stacking filter is not recommended since it introduces light fall-off, degrade IQ, and the setup is prone to flare. Most of the time, two would be the limit (same with Cokin P set up).

lithos · 03-25-2008, 09:29 AM

Unless you've got a really wide step-up ring. But polarisers get expensive then.

TaoMaas · 03-25-2008, 09:51 AM

Yep...sounds like too many filters. I think you already solved your own problem, though. Remove the UV if you're going to be using two filters.

03-25-2008, 04:54 AM	#1
Buffy Site Supporter Join Date: Apr 2007 Location: Greater Boston area, Massachusetts Posts: 389	Vignetting with FA 31 Limited Some of my recent shots with the FA 31 showed some small vignetting, and I am assuming it's because I had too many filters on it--the UV I forgot to remove, a polarizer, and a red 25. Has anyone else ever had this problem, and am I right in assuming two filters is the limit? Buffy

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03-25-2008, 05:15 AM	#2
thePiRaTE!! Inactive Account Join Date: Sep 2007 Location: Calgary, AB Photos: Gallery Posts: 942	I've not noted the characteristic myself. I recommend taking off the filters and try a shot wide open against a white wall, then you'll know if your copy is sound.

03-25-2008, 07:56 AM	#3
aegisphan Veteran Member Join Date: Nov 2007 Location: New Mexico Posts: 815	Stacking filter is not recommended since it introduces light fall-off, degrade IQ, and the setup is prone to flare. Most of the time, two would be the limit (same with Cokin P set up).

03-25-2008, 09:29 AM	#4
lithos Inactive Account Join Date: Oct 2007 Location: Brisbane, QLD, AUS Posts: 3,261	Unless you've got a really wide step-up ring. But polarisers get expensive then.

03-25-2008, 09:51 AM	#5
TaoMaas Pentaxian Join Date: May 2007 Location: Oklahoma City Photos: Gallery \| Albums Posts: 3,574	Yep...sounds like too many filters. I think you already solved your own problem, though. Remove the UV if you're going to be using two filters.

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