Admins, please jump in and correct me if I'm wrong. I believe that the Letus Nikon mount will work with just about any 35mm lens Nikon has produced, from the early Non-AI Nikkor-S* up through the newest AF lenses.
I have, as I write this, a brand new AF 50mm 1.8D on my Extreme, and I've had many other, older, lenses on there as well.
This is a distinct advantage that Nikon has, that sometimes gets lost in the alphabet soup (F, Non-AI, AI'd, AI, AI-s, AF-s, etc). Like all manufacturers of lenses, Nikon has changed their mounts over the years. Unlike Canon however, the changes Nikon made were largely to accommodate advances in metering and autofocusing technologies, and not to the bayonet mount itself. You can therefore pick up (just about) any SLR lens Nikon ever made, and snap it onto (just about) any Nikon 35mm film body you can find, no problem. For instance, that same AF 50mm works great on the F3, a manual-focus film body almost 30 years old!
My advice then is to buy the nicest, fastest (aperture) lenses you can afford, confident that whether they're designated AI, AI-s, or AF, they'll work great with the LEX.
There are (of course) a few caveats, especially with new professional zooms (in case you ever have an extra $1500 burning a hole in your pocket):
Avoid "G" lenses. Like:
http://imaging.nikon.com/products/imaging/lineup/lens/af/zoom/af-s_zoom24-70mmf_28g/index.htmThe "G" after the aperture rating indicates that the aperture can only be changed via controls on the camera body, and not via a ring on the lens. It's a stupid feature, and makes the lenses useless for what we do. I've heard of people sticking toothpicks into the slot behind the aperture prong to force it to stay at a given aperture, but that's just silly. I'm not about to risk explaining to the guy at the camera shop why there are
splinters in my thousand-dollar lens.
By extension, avoid DX lenses. These are designed for Nikon's prosumer DSLRs, which have a smaller sensor. Like the G lenses they'll mount up fine, but the image they project won't cover the ground glass inside the Letus. It'll look something like:
http://www.kenrockwell.com/nikon/10mm-fisheye/images/examples/10-fisheye-on-fx-IMG_4287.jpgThat's a photograph taken with a fisheye lens designed for a DX-factor camera, on the full-frame D3.
That's about all I can think of right now... Hit me back if you have any questions on specific Nikon lenses, and I'll do what I can to help.
Post edited by: pbryant, at: 2008/07/29 18:17