Is the Baader Contrast Filter good for moon, planets and nebulae? If so I have a Tele Vue 2” 27mm Panoptic, Tele Vue 1.5” 18mm & 8mm Radians. (My scope if an 8” Meade LS ACF.) What would be the best size filter to get, since I don’t want to buy both, at least not yet?
The Contrast Booster is ideal for observation of moon and planets for Fraunhofer refractors with short focal legth, means big colour abberation when magnification is high. It is not best for nebulae because these get not observed with high magnification so the colour abberation is not visible. The filter is furthermore not necessary for mirror telescopes like ACF because these have no colour abberation. If you want to observe nebulae with an ACF telescope you should choose an UHC-S filter. For planets choose the Neodymium filter or colour filters, especially on Mars colour filters (orange for surface detail, bright blue for clouds) are enhancing contrast massively.
Answer by: Baader Web Team (Admin) on Aug 16, 2018 2:44:00 PM
This usually works - both Celestron and Meade use the same SC-thread. So, the thread should be the same, although we have made the experience that in the past there were some Meade-telescopes where threads were so far away from the tolerandces that it didn't work. But usually the threads should fit.
Depending on the depth of the thread of your star diagonal, it may be that you need an additional spacer, otherwise a coupling ring may rotate, although the threads fit. Unfortunately, we do not have Meade accessories here to try it out.
Answer by: Baader Web Team (Admin) on Aug 6, 2018 8:39:00 AM
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