Quote:
Originally Posted by Hans Tucker
Any owner of a AP130GTX imaged, without any reducer, at the native f6.3. Does the scope need the Prime Focus Field Flattener or do people opt to go faster and use the QUADTCC?
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I have both the FFC and QUAD reducer. The faster f-ratio is moot, it's more a case of wider field.
As for edge correction, in native format at F6.3 neither of will 35mm or APS_C cut it.
In either case stars look like small comets at the edges.
A hairy eyeball won't notice. Royal Greenwich might. The Malin's certainly will.