|
The external may look like the Takahashi CCA250 but the optical design is different. The CCA250 electronic focuser moves the secondary mirror, whilst the SharpStar CDK has a rack/pinion or Crayford focuser. I asked on FB that if the SharpStar CDK corrector elements are fixed or if they are part of the drawtube and it seems that the corrector elements are fixed.
|