B + W Slim Filters MRC

[neuroanatomist]

Is the slimmer XS-PRO required to avoid vignetting for the EF-S 10-22mm?

I don't know - I've never used anything but the XS-PRO on it. I also now have an XS-PRO UV on my EF-S 17-55mm - I know it's not needed due to vignetting by itself, but now I can stack the slim CPL if needed. Once I became aware of the XS-PRO mount (from a post on these forums [] ), which was after I had the F-Pro on the 17-55mm, I ordered an XS-PRO with my subsequent telephoto lens purchase and swapped the filters.


If I had to guess, I'd say that the differing opinions result from aperture - when a lens is used wide open, optical vignetting is more likely, and this makes mechanical vignetting more apparent. But, since the 10-22mm is often used for landscapes, stopped down as far as practical, mechanical vignetting is not much of a concern. For shooters using JPG or RAW with DPP, the application (or not) of peripheral illumination correction will also matter (as I recall, the EF-S 10-22mm was not in the 'stock' list of lens corrections on either the T1i or the 7D - I had to add it using EOS Utility).


I'll try to find some time to put an F-Pro MRC UV on my EF-S 10-22mm and test for vignetting, in the next day or two.

[sirhc_1]

I did have a chance to find a HOYA PRO1 HD series UV filter. But would definitely purchase a B+W filter when its available....


Just minutes after my purchase, someone came in with a 1Ds Mark III with a 70-200mm 2.8 L IS mounted on it. What surprised me was the fact that there were 2 UV filters attached onto it! Yes, 2! (a B+W UV & a Sigma UV filter)!!


Are there any issues when using 2 filters (UV) on top of each? I know this one sounds stupid but I'm really sure on what I saw earlier. I didn't even have the guts to ask him WHY.[8-)] I do know that you can stack up UV,Grad ND/ND filter, CPL filter. The above sounds really ridiculous. Is there any explanation to this?

[neuroanatomist]

Are there any issues when using 2 filters (UV) on top of each? I know this one sounds stupid but I'm really sure on what I saw earlier. Is there any explanation to this?

Besides mild insanity, the only reason I can think of would be to intentionally cause flare in a shot, as a 'desired' effect.

[sirhc_1]

Besides mild insanity, the only reason I can think of would be to intentionally cause flare in a shot, as a 'desired' effect.

Same here.[:P]

[sirhc_1]

Besides mild insanity, the only reason I can think of would be to intentionally cause flare in a shot, as a 'desired' effect.

Same here.[:P]

[neuroanatomist]

I'll try to find some time to put an F-Pro MRC UV on my EF-S 10-22mm and test for vignetting, in the next day or two.

I did have some time to test this today; I'll post the results in a fresh thread.