Can a Nikon 1 use a teleconverter?
Nikon currently offers teleconverters in 1.4x, 1.7x and 2x magnifications. These AF-S teleconverters utilize the Nikon f/mount, and are compatible with all Nikon film-based SLRs and DSLRs (FX and DX formats), as well as the Nikon 1 cameras when using the FT-1 F Mount Adapter.
Can you use a sigma 1.4x teleconverter on a Nikon?
So if you were thinking of buying a Sigma 1.4x teleconverter to be used for a Nikon telephoto or super-telephoto lens – forget about it. Even though the Sigma 1.4x will physically mount on any Nikon telephoto lens that can take teleconverters and it will perform well optically, it will cause all kinds of lens communication and autofocus issues.
What’s the aperture of a Nikon teleconverter lens?
A 1.7x teleconverter will lose 1½ stops of light, so with an f/2.8 NIKKOR lens, you will end up with an effective wide aperture of f/4.5; A 2x teleconverter loses 2 stops of light, so an f/2.8 lens drops down to a wide aperture of f/5.6.