Quantaray 28-90mm f/3.5-5.6 for Pentax "example lenses" Questions

...did not change the lens mount when then went from film to digital, so as not to obsolete their own lenses. So if your lenses have a Nikon mount, for example, they will work on a Nikon digital

lenses have a Nikon mount, for example, they'll work with any Nikon DSLR. If they have a Minolta mount, they'll probably work with any Sony DSLR (Sony bought the photography business when Minolta went

lenses, with a wide selection of mounts. This is because the various camera manufacturers like Canon, Nikon, and Pentax have proprietary mounts. A Quantaray lens for Canon will not fit on a Nikon, for

...a 35mm frame. So a 50mm for example will be a 75mm f1.7. On Sony A850 and A900 they will be the same as a 35mm film body. I use Minolta lenses with my Sony bodies all the time and they are

lenses with the appropriate adapter. As I recall, Sigma uses a bayonet mount and adapters are available for many name brand cameras. For example, I have a Nikon and my Sigma 600mm came with an adapter

...cameras Quantaray makes lenses with many different mounts. If the lens has a Canon EF mount then it will fit your camera. If it has another mount, Nikon for example, then it will not fit your

...makes lenses with a variety of mounts. If you specify a lens with a Sony mount then it will fit on the alpha 230. If you get a lens with a Nikon mount, for example, then it won't fit on a

...camera? Quantaray makes lenses with many different mounts. If the lens has a Canon EF mount then it will fit your camera. If it has another mount, Nikon for example, then it will not fit your

...Sigma makes lenses for a variety of cameras. Different manufacturers use different lens mounts, and they are not interoperable. A lens with a Canon mount will not fit onto a Nikon body, for

...makes lenses with a variety of mounts. A lens with a Nikon mount, for example, will not fit onto a Canon camera. Assuming you have a lens with a Canon mount then yes, you can use it on your