|
Hi Steve
If you have the SBIG D Block/T-Ring already and your 1 ¼ inch nosepiece screws into the D Block/T-Ring combo, then you’re okay; the 2 inch nosepiece will screw into the very same T-Ring.
T-Rings are universal, so any Adapter that fits a T-Ring will also screw into your T-Ring.
I think that Tamron (photo lens manufacturer) “invented” the T-Ring (T-2 fitting) some while ago to allow 3rd party lenses and accessories screw into a standard T-Ring fitting. I think it is a 42mm thread with a 0.75" pitch?
Cheers
Dennis
|