If the 5D Mark II’s view represented the full frame’s image, then the 7D would capture a much smaller image area. That’s where the 1.6 crop factor comes into play. The crop factor magnifies the lens’ focal length so a 35mm lens on the 7D captures the equivalent area of a 56mm lens on a full-frame sensor (35mm x 1.6 crop = 56mm lens Also, the 6D frame rate is too slow for most moving wildlife and birds. Aside from that, you are used to 150-600 on a crop sensor, which is roughly equivalent to 240-960mm. With the 6D, you are left with a the actual 150-600 which is going to seem very short by comparison. I would avoid the original 7D, because the image quality is inferior In this video, we will be comparing a full frame camera (canon 6D) to a crop sensor camera (canon rebel t6i).Enjoy!Gear:Camera: Canon 6D, Canon Rebel t6iLens The Sigma 50-150mm F2.8 APO EX DC OS (Canon EF) is a great alternative to the outstanding Canon 70-200mm f2.8. It has the nice feature of providing the same "view" on a crop body as the 70-200mm does on a full frame. It seems that this has become, and is, a very popular focal length. This may be Canon’s “cheap” full-frame model, but you wouldn’t know it to look at it. The 6D Mark II is a good upgrade from a crop-sensor DSLR, and it’s a great value right now at Poorer EVF. An acceptable electronic viewfinder in the EOS R6 is not as good as its bigger brother, the EOS R5. Compared to the R5 the electronic viewfinder display on the R6 has lower resolution On a Canon, there is no “crop mode” menu to worry about. (Either you have a Canon EF-S lens which will NOT mount on a full-frame body at all, or you have a third-party lens like the Tokina 11-16, and it will mount just fine.) So, let’s see how the Tokina 11-16 looks at 16mm on full-frame! Nikon D600, Nikon 14-24 @ 16mm. The Canon 6D is a full frame camera. This is called the crop factor. A Canon APS-C camera has a crop factor of 1.6. So for any focal length you multiply what it says by 1.6. Nx7J.