Split eye piece for camera

[steelfixer]

Good morning all.

I read somewhere that you can get a split eye piece holder but I cannot find it again.

I have looked on various web sites but to no avail.

What I want to do is set up my web cam so I do not have to keep removing it from the scope to use normal EP's as it is a pain to set up again. It never sems to be centered in the holder.

By having a split holder I can then set up the camera once and for all so it captures what is in the FOV.

I hope this makes sense.

Thanks

Graham

[Pete Presland]

i think you are looking for a off axis guider,there a few around

Meade LX Series Off Axis Guider | Telescope Accessories | Rother Valley Optics

[Merlin66]

You may be thinking of a flip mirror arrangement - the webcam being set up on one side and the eyepiece used on the other....

Not sure it would work if your scope is a reflector - they need about 55-60mm back focus.

[steelfixer]

Morning Bunnygold.

Thanks for the link.

That is the sort of thing but it is for a normal camera.

I need one for my SPC 900 so it needs to be 1.25" both ways.

The one I read up on is like a 45 degree EP holder but it has a mirror inside so you can flip between the 2 Ep holders.

I know that is as clear as mud but I cannot discribe it any other way.

[steelfixer]

morning Merlin.

You have got it in one.

That is exactly what I was reading about.

Not to hot with focal stuff so I do not understand about the back focus bit.

[Merlin66]

See the Vixen version:

First Light Optics - Diagonals

The "back focus" requirement is just astronomical speak for the distance the adaptor/ spacer etc needs between the focuser and the final focus point

[steelfixer]

Thanks

So basically then if I fit one of these I may not have enough travel on my focus tube to counteract the length of the extension due to the mirror box ect.

[Merlin66]

You got it!

[steelfixer]

You see he can be taught !!!!!!!!!!!!

There might just be hope for me after all.

thanks