|
For imaging in general, as Peter and Theo have mentioned, the RC design has a few upsides, the coma free design is a big plus. the lack of lenses of any description mean less abberations, the field is fairly flat, they do show some curvature on larger sensors though.. The CDK is another fine example of an astrograph designed with similar ideas, the CDK actually offers a flatter field, and better off-axis performance than the RC..
The RC comes into its own when doing Photometry/astrometry work.. the lack of coma across the field is a big upside in measuring stars for brightness/movement etc.
As Carl says, any optical design will show flares when you put a bright star just off axis... My newt did, my C11 did, all my refractors have (including the TMB) the RC did...
VISAC vs RC of equal build quality and accuracy, RC > VISAC
|