Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: Will this fit my Canon T3i Model? Can I add filters with the lens hood on?
Document: people should know before buying this that, unlike the canon original, this hood lacks a front filter thread. this means you cannot attach any filters, and the lens cap will not fit securely. as far as i'm concerned this make it useless.
Cheap, works great, easy to attach even with filters, use on my T3i without any issues, and looks cool too
Not a bad price, just like the Canon model. Attaches in seconds, and can still use a filter with this attached.A perfect add on for that new 50mm 1.8 lens. So worth the purchase, especially for shooting in the city where sun glare can be a factor in how your images come out. Thumbs up.
I have this perminately mounted on my 50mm Cannon lens on my T3i. There's really not much to say except it was reasonably cheap, keeps the lens protected, and does what it can to block out light. I would say that my only gripe is the lens cap doesn't really fit inside it anymore (doesn't lock in place) but it does stay put without much jarring. It may fall out eventually and get lost though.
This is a good hood for the price. I tried it on my Canon T3i with my 50mm lens and it fits fine. My only problem is the lens cover is difficult to put on with the hood in place so it takes some wiggling around to get it right. It doesn't feel like a high quality hood, but then again, I wasn't expecting it to be.
I purchased lens hoods for all of my camera lenses because I wanted to get away from using UV filters. I went with Fotodiox instead of canon because, well, I didn't see any difference at all. The 50mm f1.8 II hood is great, it's screw type because the lens doesn't have a bayonet mount. Still easy to put on, I actually just leave it on when I put it in my bag.
This hood was inexpensive, and works perfectly for my Canon Rebel t3i camera. When a hood is required for photography, this one is perfect.
When I buy a new lens, I look to Fotodiox for my hoods. They're usually every bit as well-made as the Canon-branded lens hoods, but a fraction of the price. This one is no exception. It screws in tight to the lens, has threads inside to allow your existing 52mm filters, and doesn't cast any noticeable shadows on your shots. There's also enough room around the edges for your existing side-pinch lens cap.
Hood works great and fits my Canon 50mm nicely. Threads are smooth and works well with my filters. Only complaint is not reversible.
Fit my Canon EOS EF 50mm f 1.8 ll lens perfectly. Lens hood threaded well without any problems. Glad I purchased this item
Answer: It fits any Canon with the 50mm f/1.8 Canon lens! Hoods don't fit Cameras (T3i) they fit lens (the 50mm f/1.8)