Fits perfect with my Nikon 70-300mm lens. This is just a clear filter used for protection of the outer element of your lens. There is no effect with this filter that I can perceive. It does not cause any unwanted effects either. Some have reported extra flares or whatever. I try every which way I think of to cause that to happen with and without this filter, and could not duplicate those results. If your camera lens does it, well, that is your camera lens. This filter is not the cause.

Still Canon's best versatile zoom! Despite the less-than-glowing official reviews, this new 24-105 is a worthy purchase. I've owned the Mark I version three times, the 24-70 f/2.8 II, and the 24-70 f/4. My major disappointment with the f/2.8 II was lack of IS. Halloween and Christmas pics were next to impossible to get without toting a tripod around. The f/4 was very nice since it had IS, but I still missed that 105mm!I just recently purchased the Tamron 24-70 G2, which is a fantastic lens (f/2.8 and Vibration Compensation), but guess what...I missed that 105mm! So, decided to buy this lens, and after a little bit of AFMA, the lens is superb! Quick focusing, sharp images (much improved in corners), and lets in more light than the previous version.No, it doesn't have 2.8, but the IS is better than the first version, so that helps tremendously with slow moving subjects. You can shoot everything from wide landscapes to head and should portraits with nice bokeh. Yes, you lose some quality when compared to the 24-70s, but that is pure physics. This is the best compromise between image quality and focal range in my experience.I uploaded some pics I took today. These were not processed in post, just shot in Landscape picture style, and converted to jpeg in Canon's DPP.

Great filter, fit perfectly on my Nikon 70-300 lens. Crystal clear and has perfect picture quality. Highly recommend

Fits perfect on my 70-200mm 2.8 L lens and 24-70mm 2.8 L lens.

Very good polarizer for my 24-70 lens. My exact same lens cracked for reasons unclear to me, and this was an emergency order to protect this very expensive lens. It fits exactly and is the right meter of polarizer. I will be more careful (I did have the lens cap on so don't know what happened to the old one.) Perhaps not to stuff it in a bag with anything sharp.

I purchased this filter to go on the front of my Canon 24-70 f/2.8L lens. It's OK for general family gatherings and such, but I do remove it when I do wedding or other paid work. I have not been able to prove that the image quality is lowered with the filter in place, but it is not the most expensive UV/protection filter that one can purchase.

I bought this one as a protection filter for my 24-70 2.8. This filter is a great and does not affect the clarity of the pics.It fits nice and tight and I feel my lens is safe with the cap open. It does not cause flare when used against the sun.It is a good buy!

I use this filter with my 24 mm lens and I love the look it gives the sky.