On my EF16-35 MKII, I use a B+W 82mm UV Slim Filter (not cheap). This filter does come with a seperate "horrible" filter/lenscap, so the original Canon lenscap has to be removed.This horrible thing however, slips off when putting the camera in your bag, or you loose it while walking...it even slips off just looking at itIs there a solution to this problem?

RVOwrote:On my EF16-35 MKII, I use a B+W 82mm UV Slim Filter (not cheap). This filter does come with a seperate "horrible" filter/lenscap, so the original Canon lenscap has to be removed.This horrible thing however, slips off when putting the camera in your bag, or you loose it while walking...it even slips off just looking at itIs there a solution to this problem?

RVOwrote:On my EF16-35 MKII, I use a B+W 82mm UV Slim Filter (not cheap). This filter does come with a seperate "horrible" filter/lenscap, so the original Canon lenscap has to be removed.This horrible thing however, slips off when putting the camera in your bag, or you loose it while walking...it even slips off just looking at itIs there a solution to this problem?I have a B+W Slim CP in 77mm. I haven't tried this myself, but one poster on this forum has solved this problem by softening one side of the cap with a lighter, and pressing in slightly in the softened area to make a sort of "lip" that helps keep the cap in place.

I had used a lighter to soften the edges of the cover in a few places, and disfigured those spots with my nail. It made the cap a bit more secure than it was - though a year later it did 'disappear' on me (cap on lens, camera mounted on tripod, walking with the tripod over the shoulder).

Hoya makes a line of filters called Pro1D that are slim (3mm) but still have external threads so you can use a regular lens cap. -- Ken W Rebel XT, Fuji F30, and a whole lot of 35mm and 4x5 sitting in the closet...

In addition to the other suggestions, you might want to consider using a lens cap leash. If the cap does fall off, at least you won't lose it.

I have the same problem. Although I have not tried these someone once mentioned lens coats. They are made to fit over lens hoods but possibly if you found the right size you could use it to fit over the filter like a cap. They are made from neoprene.Here's one example:http://www.bhphotovideo.com/c/product/508936-REG/LensCoat_LCH3XLBK_XXX_Large_Hoodie_Lens_Hood.html however they come in various sizes. -- http://www.pbase.com/erika_thorpe

Is there a solution to this problem?Sure, remove the filter. What does it add to your pictures?It makes sense to use a UV filter in bad conditions (water spray, etc) but take it off otherwise.

Hi,I tried several circular polarized filters for the EF 24-70mm f2.8 with ther EOS 5D, and to me, the best choise is the Sigma EX wide Multicoated, or the Sigma DG Ultra-Low Reflection Multi-coated filter (any diameter available).You can use the original cap and the sun cap as well. No problems. Jean

there's no need to use the (more expensive) slim filter on this lens.

Hello,I have a B+W slim circular polarizer on my 17-40, and the cap, which is probably similar to yours, is indeed horrible. Not only does it always fall off the lens, but, also, it is not solid (some kind of rubber), and I have noticed that it can leave some marks (which can be cleaned) on the filter. So I have just thrown it away. I use a microfiber cleaning cloth that I put around my lens when I store it (its always in my bag anyway).

I think the prices vary more about the coatings used (or not used). I myself have found that Hoya is a better value for the money, but I haven't had any particular trouble with B+W either. I have all multicoated slim polarizer and ND filters.xtophwrote:there's no need to use the (more expensive) slim filter on this lens.