Which field flattener is ideal for a TS Optics 90 f6.6 Telescope, 1.0X or 0.75X?...
I’m interested in purchasing a TS 90/6.6 Telescope to get into imaging with a Nikon full-frame DSLR. I’m trying to sort if I need adapters and/or extenders. I’m not sure if the systems below are valid.
1.0X Flattener System:
TS Optics 1.0X Flattener M68 Connection
TS Optics Adapter M69x1 to M48x0.75 for TS 2.5” Flattener
M48 to Nikon T-Ring Adapter. 36.5mm length.
0.75X Flattener System:
TS Optics 0.75X Reducer Corrector M48x0.75
M48 to Nikon T-Ring Adapter. 36.5mm length