Yes. Make sure you purchase your sigma lens with the F-bayonet. Here is their lens finder: see related link
No, Canon lenses are not compatible with Nikon cameras due to differences in lens mounts and electronic connections.
Yes but older AF lenses that do not have an autofocus motor in them will not autofocus with the D5000.
The Nikon D90 is compatible with a wide range of Nikon F-mount lenses, including both DX and FX lenses. It can also work with third-party lenses that are designed for Nikon cameras. However, some older lenses may not have full compatibility with all features of the D90, so it's important to check compatibility before purchasing.
It depends on the brand of camera and the type of lens. Most Nikon film SLR lenses will work (in manual mode) on their digital SLR cameras. Many Canon lenses will work on new Canon SLR cameras, but you have to check compatability between the camera model and the type of lens. Sony purhcased the Minolta digital camera division, so all Sony Alpha DSLRs will use Minolta lenses.
Generally, no. Each manufacturer has proprietary mounts for their lenses and, for example, Nikon lenses will not fit a Canon and so on. There are aftermarket lenses made to fit various cameras, but you need to specify the make and even sometimes the model of the camera in order to get a mount that fits.
It just works!
Actually no they won't. I don't konw alot about canon cameras. but one thing I do know is that it prabably won't work. Just get a Canon flash or a Sigma flash.
To use a Vivitar lens with a Nikon camera, you need to ensure that the lens mount is compatible with your Nikon camera body. Some Vivitar lenses come with a Nikon F-mount, which can be directly attached to Nikon DSLR cameras. If the lens has a different mount, you may need an adapter to make it work with your Nikon camera. It's important to check the compatibility of the lens and camera before attempting to use them together.
They are not.The exposure meter won't work with the ais lenses. They will work fine if you get the exposure right from trial and error, use a light meter, use experience or meter with another lens first though.
The AF 'A' Mount Minolta lenses work on the Sony, also sigma and tamron do a range of lenses to fit Sony Alpha models.
DX type lenses are made specifically for Nikons digital SLR cameras. The optics are designed for use on their APS-C digital sensor which is smaller than 35mm film frames. FX type lenses are "Full Frame" lenses meant to go on 35mm film cameras as well as Nikon's line of full frame digital SLRs like the D700 and D3Xs. DX lenses cannot be used on full frame cameras without vignetting of the frame (darkening of the corners to varying degrees), even though they have the same mount and can be attached and function properly. This is particularly noticeable with wide angle lenses. FX lenses will work just fine on DX bodies but the magnification of the lens will need to be multiplied by a factor of 1.5 to give you a true indication of the lenses magnification. (A 50mm FX type lens, on a DX camera, yields a magnification equivalent to a 75mm lens on a regular full frame body.)
A Nikon EM has a standard Nikon mount, so you can use any lens that'll fit on a Nikon, except for a Nikon Series G lens, on an EM. A Series G will fit but it won't work because there's no aperture ring.