OLSO model :
- The model of the C8 Edge-HD is from . It is reported the specifications were provided by Celestron to the authors of .
Radius of diffraction limited flat field :
- 0.25° from 465 to 656 nm according to Celestron WhitePaper and .
Field curvature :
- the C8 Edge-HD is designed to provide a flat-field..
Sensitivity to backfocus :
Strehl ratio versus wavelength :
Simulations with the OSLO model shows that the C8 Edge-HD is diffraction limited on axis from about 485 nm to beyond 900 nm. The performance drops below 450 nm because of spherochromatism.
Focus versus wavelength (to be updated):
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