astrotech o.75 reducer and flattener

[suma126]

i just received a astro tech reducer and flattener for gso 8 rc ota and try-ed it last night and all i got was egg shaped stars and was wondering has anyone Else got one with the same problem.

[DavidU]

The corrector requires 75mm of spacing between the rear lens and the focal plane of the camera, so some spacers will be needed to make it work with a DSLR.What camera etc were you using?

[suma126]

nikon d90 dslr . i did try spacing it out but couldn't get the star to focus with 75mm spacing.

[MrB]

Interested in how you get along with this, have been thinking of getting the Astrotech flattener.

[suma126]

David are you using one from astro tech and if so what camera. thanks

[DavidTrap]

Are you allowing for the 46.5mm from the front of the bayonet mount on the camera to the focal plane of your Nikon?

DT

[suma126]

i think i might just send it back because if i revers it looks better. here is a photo i took last night.

[suma126]

astro tech are saying theres a problem with them so send it back :shrug: :(

[DavidU]

Oh dear !
It looks like an optical element put in backwards..........

[bmitchell82]

Take her to warp 10 spock.... BUT CAPTAIN SHES OUTA POWER!!!!!...