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8" SCT at f10 (2032mm)
24mm Panoptic for 85x and 0.76 deg field.
13mm Nagler for 156x and 0.5 deg field.
9 mm Nagler for 226x and 0.35 deg field.
8" SCT at f6.3 (1280mm)
24mm Panoptic for 54x and 1.2 deg field.
13mm Nagler for 98x and 0.79 deg field.
or
16mm Nagler for 80x and 0.99 deg field.
9 mm Nagler for 142x and 0.56 deg field.
or
8mm Delos for 160x and 0.44 deg field.
7mm Nagler for 183x and 0.43 deg field.
5mm Nagler for 256x and 0.31 deg field.
or in lieu of 7 and 5
6mm Delos for 213x and 0.34 deg field.
Note I have a C9.25 and f6.3 reducer and never use the reducer visually. I bought a 2" visual back and use a 41mm Panoptic for my low power widest true field view. The 35mm Panoptic is also a very good choice as it is a lot lighter. Note you cannot use the f6.3 reducer and 2" visual back with 2" start diagonal and 2" eyepieces as it just does not work. You cannot reach focus even by shifting primary mirror and I'd say even if you could reach focus there would be vignetting.
If you stay with 1.25" then the 24/13/9 combination just cannot be beat either with or without the f6.3 reducer and if using it then add the 7mm and/or 5mm Nagler for a bit more power.
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