Kowa 883 25-60x ep digiscoping question (1 Viewer)

[davpen]

Hello. I just posted this same question in the Nikon V1 thread, so apologies if you've already seen it.

Is anyone using a Nikon V1 with 11-27.5mm or 10-30mm lenses on the 880 series with the new 25-60x ep and DA10 digiscoping adapter? I understand that the eye relief on the Kowa zoom is a fairly constant 17mm and would like to know how this works out in terms of vignetting.

Cheers,

David

 

[mblank]

I have Nikon 8400. New zoom is not better than 20-60x in terms of vignetting for this camera. Old 20x was very good for digiscoping. All above 20x in old zoom was useless for digiscoping. In new zoom I take pictures above 25x quite often. The geometry of new zoom is different. When I attach cammera, and zoom in, the vignetting gets bigger and bigger, it disappears about 2.5x in camera. I think the old zoom was great. So I think that eyerelief is not quite constant and is less than 17mm.

 

[davpen]

Thanks mblank, that's useful. I hope to digiscope with the zoom mostly between 35-60x and am particularly interested in how the vignetting is there, compared to, say, 20-30x (when using the same focal length on the camera, obviously).

David

Edit: I'd be interested in the vignetting results with any camera - especially when using the DA10.

 

[mblank]

I use DA10 too. When I zoom camera to about 3x, I have no vignetting in a whole range 25x-60x.

Regards,
Mariusz

 

[davpen]

Thanks again Mariusz. This sounds very promising.

David