How to attach a camera to a Diamond Steeltrack focuser?

[StuartT]

I have a DIamond Steeltrack 2" focuser on my SCT and can't quite figure out how to attach my ZWO camera (which has a female M42). I tried using the M42 extension adapters I use on my frac, but they have to be slid into the focuser where the eyepiece usually goes (see photo). This makes for uncertain focusing as the adapters can be slid in and out by a few cm (i.e. there is no fixed position for them). I'd also be concerned about tilt (as the three clamp tightening knobs on the focuser might be tightened to different amounts)

Suggestions?

  

Edited February 5, 2022 by StuartT

[johninderby]

Perhaps the Diamond Steeltrack T2 adaptor might work. Says fits any Diamond Steeltrack focuser.

https://www.firstlightoptics.com/adapters/baader-diamond-steeltrack-t2-adapter.html

Edited February 5, 2022 by johninderby

[StuartT]

2 hours ago, johninderby said:

Perhaps the Diamond Steeltrack T2 adaptor might work. Says fits any Diamond Steeltrack focuser.

https://www.firstlightoptics.com/adapters/baader-diamond-steeltrack-t2-adapter.html

Interesting. Thank you. I wonder what size that screw thread is? I need it to be M42 ideally.

Edited February 5, 2022 by StuartT

[johninderby]

[ONIKKINEN]

2'' barrel to T2 thread adapter would probably be easiest?

Like this: https://www.teleskop-express.de/shop/product_info.php/info/p200_TS-Optics-Focal-Adaptor-2-inch-to-T2.html

Just clamp it in to the focuser as you would any other accessory and screw the other end to the camera.

[jacko61]

32 minutes ago, StuartT said:

Interesting. Thank you. I wonder what size that screw thread is? I need it to be M42 ideally.

if you are using both extensions to get backfocus, the ZWO 16.5mm tube is M48 at the telescope end. 

Graeme

[johninderby]

Diamond Steeltrack M48 adaptor

https://www.firstlightoptics.com/adapters/baader-diamond-steeltrack-m48-adapter.html

[StuartT]

2 hours ago, jacko61 said:

if you are using both extensions to get backfocus, the ZWO 16.5mm tube is M48 at the telescope end. 

Graeme

 

2 hours ago, johninderby said:

Diamond Steeltrack M48 adaptor

https://www.firstlightoptics.com/adapters/baader-diamond-steeltrack-m48-adapter.html

Ooops! I ordered the M42 one. No worries. I guess I just won't has as much backfocus. I don't think it's critical.

Thanks everyone