Taking apart a Siebert 40mm 70degree OB
Posted 05 December 2012 - 02:20 PM
Has a bit of dust so thinking of try to get at the elements.
-The top lens is pretty easy to get at no problem cleaning it.
-The bottom lens is deeply recessed into the 2" barrel
There seem to be three top LN key screws at the top whcih takes the top housing off with the top elements in it.
There is then 4 LN key screws at the bottom which seem to hold the bottom barrel together. However taking these off the bottom barrel is still stuck to the main housing??
Anyone go thru a disassmbly of a Siebert?
**Not too bad as far as dust is concerned right now but would be good to know for future cleaning
Posted 05 December 2012 - 05:29 PM
Posted 06 December 2012 - 12:06 AM
Posted 06 December 2012 - 09:39 AM
I cleaned the eyepiece pretty good.
The dust on the bottom lens was mainly loose so using a blow bulb and a vac clean it nicely.
I email Harry and he said he could clean it for me, good option to have in the future.
When i took mine partially apart it looked like there was a few O-rings holding the elements, didnt want to tamper with them.
Cant wait to get to use it a bit more.
First light was yesterday at F5 and it did good. Edge correction was ok. The eyeplacement was great easy to pan around. Bought it mainly for my F7.5 / F15 want to see what it can do.
Posted 06 December 2012 - 12:05 PM
Clear skies to you.