Removing light path between Bino and focuserI wanted to reduce as much light path as

[axle01 (Alan)]

I wanted to reduce as much light path as possible so i wanted to connect my Denkmeier Binotron 27 directly to the Williams Optics diagonal by removing parts 'C' & 'D' and connecting 'A' directly to the Bino.

http://i39.tinypic.com/20ji7au.jpg

First i removed the side plates and drilled and taped a M4 thread in the both sides of the diagonal and installed 2 thumb screws.

http://i39.tinypic.com/10gy2l4.jpg

Then i took the nose piece 'C' in the first photo and machined it with a taper that would fit the diagonal where the eyepiece adapter was.

http://i43.tinypic.com/qyep6x.jpg

Diagonal with the thumb screws and the new nose piece installed.

http://i39.tinypic.com/2yoyfs1.jpg

Ready to connect all the pieces.

http://i43.tinypic.com/29p8dhe.jpg

New nose piece screwed into the Denkmeier Binotron 27

http://i39.tinypic.com/14c7itt.jpg

Finished

http://i43.tinypic.com/2zhr5o1.jpg

Now i am impatiently waiting for a Baader Zeiss T2 1.25" diagonal to reduce the light path even further.

[Tinderboxsky (Steve)]

Interesting approach to shortening the light path. I have the the Baadar Ziess T2 1.25" diagonal directly attached to my binoviewer - it is definitely to best solution for minimizing the light path. I am impressed with performance of the diagonal too.


Steve.

[MattT]

Looks good Alan. What is the purpose of reducing the light path? Can you use the bino's without OCA? Have done that with my 150 frac(no OCA) and it's good even though the OCA does play a part in the optical train.
Matt

[axle01 (Alan)]

Originally Posted by MattT

Looks good Alan. What is the purpose of reducing the light path? Can you use the bino's without OCA? Have done that with my 150 frac(no OCA) and it's good even though the OCA does play a part in the optical train.
Matt

Yes Matt hopefully I will be able to use it without the OCA,,,,,,I just finished it yesterday,,,,,first test Sat night.

[Satchmo]

The OCA also corrects the spherical aberration inherent in the prism system which essentially acts as a thick plate generating aberration.