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Model: c63focalreducerPart Number: 94175-CGL
This combination focal reducer and field corrector converts the optical systems of f10 Schmidt-Cassegrain telescopes to f6.3 for photographic imaging.
Offers a wide field of view with Schmidt-Cassegrain telescopes and reduces exposure time by a factor of 3.
Fits both Celestron and Meade SCT telescopes. Optimal back focus to camera chip is approximately 105mm.
Note: Not suitable for the Celestron EDGE or Meade ACF series.
Although the description says it is for 8" SCT it seems to work with 6".
Ive not had chance to use the reducer yet, but i have used one before its a must have for your SCT scope, as usually fast delivery from FLOTony
I bought this for my C9.25 which I use just for visual observing. It widens the field of view from 0.68 degrees (using a 40mm ep) to almost 1.6 degrees. This is wider than the maths suggests, but is confirmed as I can see both Gamma and Delta Coronis Borealis in the same field. The entire double cluster and coathanger asterism are visible for example. It also brightens the image without any discernable darkening at the edges. Stars right to the edge of the field are pin-point sharp.On bright objects (moon and during the day), the central obstruction of the SCT is visible in the field at lower magnification, but that's a problem with physics and faster scopes, rather than anything wrong with the Focal Reducer. On other objects, including planets the OC isn't visible abd the view is delightful. (not that you'd really use this on planets). A minor downside, as it changes the focal length of the scope considerably, there's a *lot* of focus changing when swapping it in and out. (A focus motor helps here). This is just a quibble.I love this thing, it really does give the scope another dimension. All telescopes are a compromise, but with this in your toolkit you do kinda get the best of both worlds from your scope: wider fields for the DSOs and better magnifications for the planets.
I bought the Celestron f6.3 reducer with the hope that I could use it with a crayford SCT focuser. I was pleasantly surprised that it did. I'm really pleased with the product and really nicely made. First light optics was great to deal with as I'd read it couldn't be used with a crayford SCT focuser. Many thanks.
I tried the focal reducer with my C8 and i was amazed by the brightness and flatness of the imaged delivered. Perfect choice for any long FL SCT.
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