The product works good with my Canon mirrorless camera with Sigma Ef 18-250mm lens with all functions. But the cost of the product is only Rs.7500 in canon showroom. This product is in great demand and not in stock so they are selling at an extreme price. If you can wait just place an order with canon and get it at a lower price

A very good filter. It’s very smooth and has a stopping point. I used this on my sigma art lens for a shoot. No vignetting!

Hab den Filter für mein neues Sigma aus der ART-Reihe gekauft um das gute Stück vor Schmutz und anderen äußeren Einwirkungen zu schützen. Der Filter ist total stabil und wertig verarbeitet. Bei einem Bildvergleich mittels Stativ und 1:1 Konfiguration habe ich keinen Unterschied in der Abbildungsleistung festgestellt. Werde zukünftig nur noch Hoya kaufen...

This lens is one of (if not THE) best lens Canon makes, period. It is the premier "sports lens" in the industry, and it has that title for several reasons:1.) BUILD QUALITY: It's built like a tank.2.) WEATHER SEALING: couple with a 1 series body, as soon as it starts raining, everyone else will be scrambling to keep their cameras dry.3.) SUPERIOR OPTICS: color and contrast from this lens are excellent.4.) IS: I bought this lens because of the IS.My former 70-200 lens was the Sigma 70-200 f/2.8 HSM. I'm not going to sit here and lie saying the Canon completely blows the Sigma away- it simply doesn't. The Sigma is a fine lens. It is also built like a tank, the HSM is almost (when I say almost, I mean by milliseconds- ie barely noticeable)as fast, and the colors and contrast are superb- almost indistinguishable from an L lens. There are a lot of "almosts" in this paragraph, I know. The Sigma is "almost" perfect, the Canon IS PERFECT. If you are willing to pay the substantial price difference for perfection, more power to you.The main reason I purchased this lens was not because it was white, not because it has a red ring, and not because it's a Canon. I bought it for the IS. I am a sports shooter and I found myself limited in the shutter speed I was able to use with the Sigma. I am a big proponent of the 1/focal length (x 1.6 on my 30D) rule. At 200mm, I would need a shutter speed of at least 1/320 to prevent camera shake. When using flash, I would have to use HSS for the flash to work at that shuttter speed. HSS significantly cuts down on flash output. I would rather use my cameras maximum x-sync speed (1/250) most of the time. This is where IS comes in handy for me. With the Sigma at 200mm/ 1/250 I would get blurry shots, with the Canon using the IS I'm safe. I can even go several stops slower than 1/250 if I desire. The IS is fantastic and is definitely worth the extra $$$.

This adapter did the job! I can now use all my Canon, Tamron and Sigma lenses on my new Canon m50.

It may fit some of the Sigma lenses, however without the automatic focus.It focused easily and perfectly with Canon lenses

This camera is an absolute dream to work with. I have Sigma Art primes for my portrait work, and got the rf 24-104 f4 lens for hiking/landscape photos. This has been a seamless tool for my travel photography business.

I debated for some time between this and the Sigma Art series 35mm. The color and saturation are stunning with this lens-- it's on my camera now >90% of the time (with 24-70L and 135L as other options). It's fantastic for indoor low-light photos. I have no regrets about this purchase.