Got Sigma dl 75-300mm

Sigma makes their lenses with a variety of mounts. If the lens has a Pentax mount then it will work with your K20d.

Sigma makes their lenses with a variety of camera mounts. If you get the lens with a Canon mount then yes, it will fit any EOS Rebel camera body. A lens with a Pentax mount, for example, will not fit a Canon camera.

Sigma makes their lenses with a variety of mounts. If the lens has a Canon or M42 mount then there is no problem. If it has a Minolta mount, for example, then replacing the lens will be easier and just as cheap as changing the mount. If it has Nikon mount, you can buy adapters to fit it to Canon or M42 bodies.

NO canon fit lens fits a canon only you will need a sigma 70 300 for pentax

Sigma makes lenses with a variety of camera mounts. A lens with a Pentax mount, for example, will not fit onto a Canon camera. Assuming you get the lens with the Canon mount, then it will work on the EOS 350D with full functionality.

Sigma make this lens with different mountings (i.e. Canon, Nikon, Sony/Minolta, Pentax and Sigma). So, if you get this lens with the Canon mounting - yes it'll work with your D60. Any other mounting will not fit on your camera. Hope that helps

If your Sigma lens has a Pentax mount and worked on your 100D, it will work on your KX.

It could Canon, this is one of the edge Canon over other brands. Its versatility on lens mount is better.

Best option is to go to photogrphic shop with the camera and lens and ask for converter that will fit on both ( if available ).

HI Are you sure it is a sigma fit lens