Focal length/Aperture: 6mm f/2.8
Lens construction: 12 elements in 9 groups
Picture angle: 220 degrees
Diaphram: Automatic
Aperature scale: f/2.8 - f/22 on both standard and direct- Matthew Gorveatte
readout scale
If I tryed to use this lens on my d90 I would have to super glue the mirror up in my camera. lol I dont have lock up, only on my old nikon film cameras, so I would not be able to flim with this. I am not sure. tho, I would love to try. I have never seen video from this lens I have tried to find it tho
if u take a pic with that thing, th one u photograph will be prisonned in the camera, won't be able to get out.....lol proops my friend!!u r doin great job...
Once you calculate the 1.5x crop factor on the D90 the 6mm is a 9mm lens, still not bad, I have always wanted to use this lens on my D3, I have been using the Nikon 16mm fisheye but it would be nice to have a little more of a fisheye lens, I think an affordable alternative would be the Sigma 8mm f/3.5 EX DG Fisheye, I'm sure it's not as sharp as a Nikon but a lot less expensive .
It doesn't matter you're still going to get crazy vignetting on it which will make it look like one of those cheap screw on adaptors. I'd rather one that fills the frame with a smaller field of view than one with crazy vignetting.