Removing dewshield

[Donkeiller]

Anyone got any idea how to remove the retractable dewshield on a Mgrez 90, or similar:icon_scratch:

[johninderby]

You have to unscrew the bezel ring (turn counter-clockwise looking from the rear of the scope) from the rear of the dewshield and then the dewshield will simply slide off the front of the OTA. The bezel usually has a fine thread and so requires a lot of turns. Can be a little tricky to get the threads to engage properly when you screw it back on.

John

[Donkeiller]

Thanks, John.

What is a bezel ring?

[johninderby]

It's the tapered ring at the back of the dewshield as circled in the photo.

John

[Donkeiller]

Thanks, John, that's brilliant!