TeleVue Paracorr Photo Lens Assembly
provides new and improved way of coma correction.
makes stars look like blurry comets whose tails point out radially from the center of the field. The faster your scope's speed, the worse the effect. All parabolic mirrors
used in Newtonian reflecting telescopes
are limited in field sharpness due to coma. Even a perfectly made 13" f/4.5 parabola
has only about 0.1 degree diffraction limited field.
is a universal corrector that tightens and intensifies star images on f-ratios from f/3.5 to f/8 without adding any false color or spherical aberration! You no longer have to constantly shift a Dobsonian to keep objects centered for sharp viewing. Using a TeleVue eyepiece
, put M-13 at the edge of the field and enjoy resolving its beauty as it drifts across your view.
This is the photographic version threaded for 35mm T-rings
. Does not include TeleVue Tuneable Top
or TeleVue 2 - 1 1/4" adapter
- TeleVue Paracorr Photo Lens Assembly