X2c to reducer adapter?

[f15p5]

Hi,

Maybe someone can tell me if such a thing exist? I want to use my WO focal reducer/field flat with a X2c. It has 42mm male threads on the end. So a 42mm female to 1-1/4" locking eyepiece holder or 2" (I could use a 1-1/4 reducer)? Will this work?I guess it's made to attach directly to a camera, but at 42mm it is larger than the x2c. Would the spacing be to much? Help!

Richard

[DoctorD]

HI Richard

What you need is a CS to T-mount adapter.

The Lodestar has a C/CS thread and your reducer/flattener is a T-Mount thread (M42)

Like this:

http://www.365astronomy.com/Baader-C-Mount-T-2-with-integrated-1.25-Filterholder.html

This has an integral filter holder so you can use an IR block or other filter.

Paul

[f15p5]

Hi Paul,

Thanks for the info, will order tomorrow.

Richard

[HiloDon]

Hi Richard,

Doc is correct, the thread on the FR is a male T thread. The adapter he linked will work, but it will have a fixed spacing. You could also use this adapter that will give you a male SCT thread. Then you can use any SCT visual back that would allow you to position the Lodestar at a variable spacing. And, you can still use filters.

http://www.scopestuff.com/ss_taff.htm

Don

[DoctorD]

Hi Don & Richard

I use a number of T spacers which are available in various sizes to get the spacing on my reducer. In fact I use a SCT to T adapter then the spacers and finally the adapter.

HTH

Pail