Steve'sDigicams

superakuma · Nov 10, 2007, 11:13 PM

Is there a rule to how much you can step up or step down when using a filter for multiple lens?

I have 3 main lens that I want to use a Circular Polarizer Filter on and they range in different size.
It goes from 62mm, 72mm and 77mm. So is can I buy a 77mm filter and use it in all of my lens? Is going from 77mm to 62mm too much of a drop? Or how about from 77mm to 72mm?

BillDrew · Nov 11, 2007, 6:52 AM

Almost always a step up adapter will work. Almost always a step down adapter will cause vignetting. The most common problem with a step up adapter occurs when the addapter is thick and the lens is wide angle. The most common exception to vignetting with a step down lens occurs at the long end of a zoom lens.

surfnron · Nov 11, 2007, 10:40 AM

If you step down from 77mm to either 62 or 72, you may not be able to use your hood.
Ron

superakuma · Nov 11, 2007, 12:40 PM

Yea it makes sense not to step down from 77mm to 62mm. The lens that I really want the CPL filter is for my Sigma 10-20mm which is 77mm. The problem with having such a wide angle lens is the filter can't be too tall. Ususally it isn't a problem with other filters, but CPL filter tend to be taller then most. I was told that if the filter is no taller then 5mm it will work on the wide angle sigma.

I guess I will get the 77mm and buy a step up from 62mm and the 72mm.

I am no too concern about using the lens hood though, but that is nice to know.

Thanks for the tip the both of you.

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Nov 10, 2007, 11:13 PM	#1
superakuma Senior Member Join Date: Dec 2005 Posts: 550	Is there a rule to how much you can step up or step down when using a filter for multiple lens? I have 3 main lens that I want to use a Circular Polarizer Filter on and they range in different size. It goes from 62mm, 72mm and 77mm. So is can I buy a 77mm filter and use it in all of my lens? Is going from 77mm to 62mm too much of a drop? Or how about from 77mm to 72mm?

Nov 11, 2007, 6:52 AM	#2
BillDrew Senior Member Join Date: Jun 2002 Location: Hay River Township, WI Posts: 2,512	Almost always a step up adapter will work. Almost always a step down adapter will cause vignetting. The most common problem with a step up adapter occurs when the addapter is thick and the lens is wide angle. The most common exception to vignetting with a step down lens occurs at the long end of a zoom lens.

Nov 11, 2007, 10:40 AM	#3
surfnron Senior Member Join Date: Jun 2003 Posts: 578	If you step down from 77mm to either 62 or 72, you may not be able to use your hood. Ron

Nov 11, 2007, 12:40 PM	#4
superakuma Senior Member Join Date: Dec 2005 Posts: 550	Yea it makes sense not to step down from 77mm to 62mm. The lens that I really want the CPL filter is for my Sigma 10-20mm which is 77mm. The problem with having such a wide angle lens is the filter can't be too tall. Ususally it isn't a problem with other filters, but CPL filter tend to be taller then most. I was told that if the filter is no taller then 5mm it will work on the wide angle sigma. I guess I will get the 77mm and buy a step up from 62mm and the 72mm. I am no too concern about using the lens hood though, but that is nice to know. Thanks for the tip the both of you.