Attaching L-eNhance Filter to ZS61 Flattener

[Kyle Allen]

I just received an Optolong L-eNhance (2") filter today. I unscrewed the camera rotator from the flattener for my Zenithstar 61, thinking that it would screw into the flattener but the internal thread is too big even though it says that it accepts 2" astronomy filters...

Does anyone have any idea how I would connect it? Here's a picture of the flattener with the camera rotator removed.

Thanks for any help. 

[Kyle Allen]

All sorted! It turns out that it screws onto the other end of the flattener. Does anyone know if I need to adjust the spacing? The filter is 1.85mm thick glass. Normally I set it to 12.9mm.

[Andy56]

Just come across this because I'm thinking of getting the same filter. So thanks for the info and:

n is the refractive index. Unfortunately I can't find this anywhere at the moment.

t = 1.85 

I was sent this by another member of the forum. Unfortunately I can find where it was from to add a thank you.

 

HTH

Andy