Topic: B+W extra wide polarizer (Read 5319 times)

pdm · « **on:** March 01, 2007, 03:25:24 pm »

I just bought a "B+W 77 mm Kaeseman Circular Polarizer Extra Wide Glass Filter". To my surprise when I received it, the front of the polarizer is much larger than the rear lens attachment. This is to avoid vignetting with wide angle lenses. Great, no vignetting! However, this means that now I can't use my lens hoods at all, so maybe I'll end up with flare instead of glare.
I also depend on my lens hoods to protect my lens since I gave up using UV 'protection' filters a while back. Has worked out ok so far.

So my questions are: Can anyone recommend a lens hood that would work with this B+W polarizer, and can anyone recommend a cap or cover that would work with the polarizer so I can cover it up temporarily while it is still attached to my lens. The outside of the filter measures about 95mm (inside is 77mm).

Thanks for any suggestions.

pdm · « **Reply #1 on:** March 01, 2007, 03:43:21 pm »

Well maybe I answered my own question for lens cap. :-)

http://www.schneideroptics.com/ecommerce/C...D=1159&IID=5601

Though I'm not finding anyone who has it yet. My local camera store says that the B+W filters they sell come with the push on cover, but the one I got from B&H has no such cover. When I called to inquire about getting one they said no such thing existed.

Here is what I ordered, am I missing something or did I get screwed? A bit confused.

b&h link

I may be just out of lock with respect to lens hood.

boku · « **Reply #2 on:** March 01, 2007, 08:32:43 pm »

Quote

Well maybe I answered my own question for lens cap. :-)

http://www.schneideroptics.com/ecommerce/C...D=1159&IID=5601

Though I'm not finding anyone who has it yet. My local camera store says that the B+W filters they sell come with the push on cover, but the one I got from B&H has no such cover. When I called to inquire about getting one they said no such thing existed.

Here is what I ordered, am I missing something or did I get screwed? A bit confused.

b&h link

I may be just out of lock with respect to lens hood.
[a href=\"index.php?act=findpost&pid=104052\"][{POST_SNAPBACK}][/a]

Those caps they include with the B+W wide polarizers are made of cheep flimsy plastic and fit so loose the fall off constantly. You aren't missing anything. Just dismount the filter and cap the lens normally. I know its a pain, but its the only way.

BTW - I use 77mm B+W wide (not super wide) for my 17-40. No vignetting and the lens hood fits because the filter diameter is still the same as the front of the lens barrel. What made you go with super wide? I didn't even know there was such an animal. Could you exchange it for the wide?

francois · « **Reply #3 on:** March 02, 2007, 07:09:59 am »

Quote

Those caps they include with the B+W wide polarizers are made of cheep flimsy plastic and fit so loose the fall off constantly. You aren't missing anything. Just dismount the filter and cap the lens normally. I know its a pain, but its the only way.
...

And there was a thread on this forum on which someone said that the plastic cap scratched his filter. There was probably some fine dust on the filter and the contact with the cap left some scratches.

Me, I don't use caps on wide-angle filters. As you suggested I removed them when I don't use them. If one has access to machining tools then a rigid aluminum cap could me custom-made - For example, just look at the caps for EF-15mm fisheye

pdm · « **Reply #4 on:** March 02, 2007, 10:09:18 am »

Quote

BTW - I use 77mm B+W wide (not super wide) for my 17-40. No vignetting and the lens hood fits because the filter diameter is still the same as the front of the lens barrel. What made you go with super wide? I didn't even know there was such an animal. Could you exchange it for the wide?
[a href=\"index.php?act=findpost&pid=104116\"][{POST_SNAPBACK}][/a]

What camera do you use the 17-40 on? full frame? I think you are right and I ordered the wrong one. I am going to return the extra wide (thankfully, they are letting me) and just get the thin one instead. I don't know why I got the extra wide, it seemed like 17mm was pretty wide. :-)

Thanks for suggestions!

boku · « **Reply #5 on:** March 03, 2007, 07:45:47 pm »

Quote

What camera do you use the 17-40 on? full frame? I think you are right and I ordered the wrong one. I am going to return the extra wide (thankfully, they are letting me) and just get the thin one instead. I don't know why I got the extra wide, it seemed like 17mm was pretty wide. :-)

Thanks for suggestions!
[a href=\"index.php?act=findpost&pid=104212\"][{POST_SNAPBACK}][/a]

I use the 17-40 on my full-frame 5D with the Wide polarizer.

When I used it on my 20D, all I needed was a standard polarizer.

No vignetting in either case.

Philscbx · « **Reply #6 on:** March 04, 2007, 04:22:39 pm »

Quote

I use the 17-40 on my full-frame 5D with the Wide polarizer.
When I used it on my 20D, all I needed was a standard polarizer.
No vignetting in either case.
[a href=\"index.php?act=findpost&pid=104476\"][{POST_SNAPBACK}][/a]

Hi, being I'm just getting into the L series little by little.
With lately the 135 f2L, and just 3 days ago being I saw such great
reviews here, I went straight to the shop and picked up the 24/70 f2.8L.

Question I have about a polarizer is, Do you add it to the B&W UV filter, or swap it?
Also, is the B&W the way to a polarizer? I'd rather do it the right way first.

I've sampled polarizers in the past for digital SLR's, and wasn't that impressed as I was in film.
Thanks'

MikeMike · « **Reply #7 on:** March 04, 2007, 05:52:24 pm »

If your UV filter has a thread in the front then you can, but if your spending all that money on glass why add crap to the front of it?

Kamil Kisiel · « **Reply #8 on:** March 08, 2007, 08:31:20 am »

I don't know what you would need an ultra wide one for. I have the standard slim CPL from B+W and use it on the EF-S 10-22 and even at 10mm (16mm equivalent) there is no vignetting, although the polarization effect with that wide of an angle isn't always pleasing.

Rob C · « **Reply #9 on:** March 12, 2007, 12:59:44 pm »

Quote

I don't know what you would need an ultra wide one for. I have the standard slim CPL from B+W and use it on the EF-S 10-22 and even at 10mm (16mm equivalent) there is no vignetting, although the polarization effect with that wide of an angle isn't always pleasing.
[a href=\"index.php?act=findpost&pid=105454\"][{POST_SNAPBACK}][/a]

Wide angle lenses and polarizers don't mix well. The reason is not to do with lens optics, but simply that the wides cover such an expanse of sky (for example); as the strength of a pol filter varies as you move to or from the direction of the sun, then it stands to reason that a wide will cover several degrees of effect in one frame, not a pleasing deal at all, with dark sky at one side and pale at the other.

Stacking filters is not a good idea.

So, keep to more modest wide lenses and vertical shots (unless you go 6x6!). You might find that less wide angle makes for better pictures too. Yes, I've put on my flak jacket.

Rob C

P.S. Using a hood is less important with a pol; you are usually pointing anywhere but towards the light source. My views on photography in the rain or snow are already known; if there's a commercial imperative, then shoot, otherwise protect your investment!

Author Topic: B+W extra wide polarizer (Read 5319 times)