I've tried to get infinity into focus on my letus and my hv20 with no success despite using every nikon lens I have from 35mm on up to 105mm. Focus works great from anywhere inside sixty feet. Any suggestions or comments would be helpful.

This is a collimation issue meaning your nikon lens mount is not the correct distance from the imaging plane. We call this feature "micro-collimation" and have a video on the subject on our site. It's a different adapter but the same principles apply. Hope that helps.

Dennis Wood
www.cinevate.com

Matt: You have to get the flange( backend ) of Nikon Lens about 46.5mm from the ground glass. In my old Letus 35a, I have to do it by manually adjusting the screen on the suspension posts.

I think the new Letus rigs have adjusting screws.

When you can't reach infinity, it means you will have to move the screen a bit closer to the lens. If you focus through infinity, you have to increase the distance.

Matt.


Could you advise which model Letus you have?

This is useful info. I'm having a similar backfocus issue with my version of the Daniel Schweinert adaptor. My footage is coming out a little soft at infinity.