Short description of TeleVue Paracorr Visual PCV-2000 by TeleVue before your review - TeleVue Paracorr Visual PCV-2000 was created by Al Nagler. TeleVue Paracorr Visual PCV-2000 provides new and improved way of coma correction.
Coma 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.
TeleVue Paracorr Visual is a universal corrector that tightens and intensifies star images on f-ratios
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