I too have had a good experience with a Siebert product lately. The Multi-Mag OCA for my WO Binoviewer.
The WO Binoviewer came with an OCA (Optical Corrector Assembly) but if would not come to focus and it was only 17mm of open aperture, which is not too good for a 22mm (20.5mm) aperture Binoviewer. :S It was worthless really, so I needed something to bring the Binoviewer to focus in my Dobs.
I was told of the Siebert Multi-Mag OCA 1.25x 2x 3.5x unit and I ordered it from Harry. I found that it also worked with the lens only screwed into the Binoviewer and produced about 2.8-3x so it really has 4 different powers of magnification.
I have used it in all its configurations and found it to be a highly corrected unit. Very good OCA that makes my 3 pairs of EPs seem like an entire set of f/l EPs.
Highly recommended.
The WO Binoviewer came with an OCA (Optical Corrector Assembly) but if would not come to focus and it was only 17mm of open aperture, which is not too good for a 22mm (20.5mm) aperture Binoviewer. :S It was worthless really, so I needed something to bring the Binoviewer to focus in my Dobs.
I was told of the Siebert Multi-Mag OCA 1.25x 2x 3.5x unit and I ordered it from Harry. I found that it also worked with the lens only screwed into the Binoviewer and produced about 2.8-3x so it really has 4 different powers of magnification.
I have used it in all its configurations and found it to be a highly corrected unit. Very good OCA that makes my 3 pairs of EPs seem like an entire set of f/l EPs.
Highly recommended.
[SIZE="Large"][/SIZE][COLOR="Blue"][/COLOR] Floyd Blue
Amateur Imager
