Quote:
Originally Posted by mental4astro
You need to keep in mind too the optical properties/capabilities of your scope. For instance EPs with >80degree field of view will introduce noticable, if not intolrerable coma distortion into the outer edge in anything faster than f/5. These EPs demand the use of some type of coma corrector in fast scopes.
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Hi Alex - In my case Focal/# = focal length/aperture = 1200/254 = 4.7 so getting a Explore Scientific 14mm 100 Degree Eyepiece or a Televue Ethos 13mm is not a good idea without a Paracorr?