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Equipment Discussions >> Binoviewers

Pages: 1

Reged: 04/17/12

Loc: Croatia
Siebert 40mm VP Echelon 2” binoviewer new
      #5654279 - 01/31/13 12:56 PM

Sounds really good, especially because Clear Aperture vs Opticay Path ratio!

On faster newtonians like f4 and faster, light cone have better entry in bino, even better than Siebert 45 unit!


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Reged: 11/12/06

Loc: Sherman Oaks, CA
Re: Siebert 40mm VP Echelon 2” binoviewer [Re: denis0007dl]
      #5654844 - 01/31/13 06:25 PM

I dunno Denis. The light cone is clipped by the too-small OCA. There are no diopters. And this unit uses regular diagonals! The backfocus requirement is massive, you would almost have to barlow this to reach focus.

Seems like a good idea but a lot of shortcuts in the design...

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