Short tube length 1.25 inch Camera Adapter

Hi,

Does anybody know of a short tube length 1.25 inch Camera Adapter (with a T-Thread on the other end)?
(short to achieve in-focus),

John

Hi,

Does anybody know of a short tube length 1.25 inch Camera Adapter (with a T-Thread on the other end)?
(short to achieve in-focus),

John

Yes....Celestron make a nice short 1.25 inch T-adapter...ref. is #93625. Total length is 6cm.

Hi Gordon,

Thanks for your suggestion. I have already tried this but it is still too long. I am trying to use a H-Alpha Diagonal.

John

Have you considered using a barlow? This would move the focal point further from the scope and should help achieve focus. Of course, it would increase the focal langth too.

Hi,

I have tried a 2x Barlow, but as I prefer to use it without a drive, it is difficult to keep the sun within the field.

Also, it seemed to throw off the H-Alpha tuning, which seems to me to be surprising, as the barlow only changed the eff focal length to 2 x 480mm.
(maybe it was just me, the sun might have been moving to fast get proper tuning in the small viwfinder).

John