What adaptor to use with st80 and qhy5?

[Mikyg]

Hi all, i set up last night for a great night of observing with a new guide setup but the problem i had was the qhy5 mono was out of focus and needed to be further back from the st80.

Does anybody no what size extension i need to fit to the st80?

Thanks in advance.

[Uplooker]

If you have one of the SW barlows, unscrew the lens element and use that as your extension. Adjust the distance using the ST80 focuser. If I remember correctly I have the focuser turned out by about 1.5 - 2 inches. No need to purchase a specific item.

Ian

[james_screech]

A 50mm T extension did the job for me.

James

[Mikyg]

Ok thanks guys

[Coco]

same as Uplooker, cheapo barlow with lens removed..

[kirkster501]

A 50mm T extension did the job for me.

James

+1

Exactly what I did.  Solid, all screw in, and works a treat.

[Mikyg]

Tried it last night guys and was perfect thanks