Field Flattener Compatibility

[tommo4523 (Tom)]

Hi everyone,

I am looking to purchase a field flattener for my TS 80mm f/7 FPL-53 doublet, I current have these adapters for my Canon 500D:
http://www.sirius-optics.com.au/siri...os-t-ring.html
http://www.sirius-optics.com.au/siri...t-adapter.html
I was wondering is there a specific field flattener I need or can I use a universal one without any side effects such as this:
https://www.365astronomy.com/TS-Univ...-5-to-f-8.html
Also will the thread from that flattener just thread onto the 2 inch end of my M42 to 2 inch adapter or do I need another component to make everything work?

Thanks,
Tom,

[glend (Glen)]

This is the one that TS recommend for that scope, their TS Flat 2,5.

https://www.teleskop-express.de/shop...onnection.html

Note the TS Flat2,5 has an M68 x1 thread to attach to the focuser.

[tommo4523 (Tom)]

Originally Posted by glend

This is the one that TS recommend for that scope, their TS Flat 2,5.

https://www.teleskop-express.de/shop...onnection.html

Note the TS Flat2,5 has an M68 x1 thread to attach to the focuser.

Will that fit on the thread of the GSO 80mm 2 inch extension tube or do I need more adapters?