Want to use 77mm filter on 82mm lens...

Hello POTN,

I have a 77mm B&W slim cpl that I would rather not sell, so what do I need to purchase so I can use it on the 82mm lens?

Thanks for helping

This...

http://www.bhphotovide​o.com …9&N=4026728360+​4206889747

Thanks for your help!

Your smaller diameter filter is going to cause vignetting by using an adapter on a larger diameter lens.

I would not use a smaller filter on your lens. You are going to get some serious vignetting.

I would buy a filter to match your largest diameter lens and use adapters to fit smaller diameters to minimize vignetting

Cassie wrote in post #16706770
Hello POTN,

I have a 77mm B&W slim cpl that I would rather not sell, so what do I need to purchase so I can use it on the 82mm lens?

Thanks for helping

if it doesn't fit on anything you own, sell it. what has been said about vignetting is going to make you want to sell it sooner or later.

Thanks guys, I guess I'll just sell it and buy the correct size. I was wondering if there would be an issue with vignetting, but forgot to ask.

Agreed, be ready to spend some bones.

My lenses are 72, 77 and one 82m filter size on the 16-35 f2.8L ii. I made the decision to not replace the 77mm Hoya HD CPL I have. So I use a step down (up?-whatever) ring to put a too-big filter on the 72 and use my left hand as a 'stand in' hood as it won't fit. As for the 16-35, I haven't encountered a situation - yet - where I wanted the CPL. But my plan is to simply hold it in front of the lens and hope for the best. I rather expect it will end up causing me some oddball lens flare/focusing issues, but I'm willing to find out the hard way.

I figure I'll most likely end up buying a step down (up?) ring to put a too-small filter on the 82mm size lens. But then, since moving from a 60D to a full-frame 5D3, my 16-35 doesn't get much use any more as the 24mm end of the 24-105 is wide enough for me most of the time. So it will likely be some time before I spend the few $$ and get a step down ring.

OneJZsupra wrote in post #16708361
Agreed, be ready to spend some bones.

Yeah, an extra $120 I'm going to get the canon this time since I'll be able to use the lens cap with the cpl, that was my only gripe about the b+w.

Cassie wrote in post #16709653
Yeah, an extra $120 I'm going to get the canon this time since I'll be able to use the lens cap with the cpl, that was my only gripe about the b+w.

Don't. Just don't get the "slim" or "wide angle" B+W; the new XS-Pro ones are slimmer than the F-Pro ones and do have front threads.

When I picked up my new Tamron 150-600 the sale man asked if I wanted for it....95mm size. A good one such as a B+W Kaisemann was well over 1/3 the cost of the lens.

Scott M wrote in post #16707041
Your smaller diameter filter is going to cause vignetting by using an adapter on a larger diameter lens.

Probably, but not necessarily. Using a FF lens on a crop body may allow him to use a smaller filter without significant vignetting.

MCAsan wrote in post #16709734
When I picked up my new Tamron 150-600 the sale man asked if I wanted for it....95mm size. A good one such as a B+W Kaisemann was well over 1/3 the cost of the lens.

That's why I use 100mm square/rectangular filters, and just get adapters to mount the holder on all of my lenses. Only need one of each filter that way. Of course, you can do the same thing with round filters if you get the biggest available and use adapters with them.