A:AnswerThis lens will work on your 77D as it is a crop sensor and uses the EF-S and EF lens line. As for a landscape lens it can be used for that as it has that big epic look and you can compose quite a good shot with all the real estate you have in the viewfinder. It may not be the best but it should do rather well.
A:AnswerI don’t think the M50 accepts EF or EFS lenses. I believe you can get a adapter (speed booster) so you can mount EF and EFS lenses or look for EF-M lenses.
A:AnswerI have no idea, I own the Canon EOS 80D. You need to see what type of lens mount your camera requires to see if it's compatible with Canon 10-18 lens.
A:AnswerI don’t know anything about a D 80 Canon camera. However, this lens works fine on the Canon 80D camera if that’s what you are actually wanting to know.
A:AnswerThis is a canon lens and will not work with the Panasonic camera. I'm not even sure if there is any adapter that would make it work but you can always try! The Lumix line is a good camera and you should be able to find some really great lenses that are compatible that are specifically made for the camera. Hope that helps!
A:AnswerThis lens is not compatible with your full frame 6D camera. The only lenses for the full frame are the EF lenses. If it says EF-S on the lens they are only compatible with the crop sensor line such as the Rebels and 7D cameras or any Canon with an APS-C sensor.