Looking for SCT to M48 adapter (or advice!)

[Stefano Antonini]

Hi all,

Before I order it new, I was wondering if anyone has one of these adapters (or similar) sitting around and they'd be willing to sell it:

https://agenaastro.com/catalog/product/view/id/655/s/william-optics-sct-thread-adapter-2-diagonal/?gad_source=1&gad_campaignid=23238624667&gbraid=0AAAAAD_aP9IAAXJvgsTzClJWDvspQZcgm&gclid=EAIaIQobChMIuIrxxvG4kwMVjTetBh1VRRn6EAQYBCABEgJD4PD_BwE

Details:

I have a Celestron focal reducer and I need an adapter from SCT to M48. I have one with 6mm-deep female SCT threads, but that's too short to screw on the focal reducer. Unfortunately, I have a DSLR for astrophotography and with my setup that also means the adapter must be less than 20mm in optical length. This rules out most SCT T-adapter. 

I don't seem to find any small simple adapter that works. The only one I could find meeting the criteria is the t-adapter linked above. Do you know of any other adapter (maybe a bit cheaper) that would work?

Clear skies!

Stefano