Antares focal reducer review. . This is one of our best-selling items, and customers have reported that this product is at least as good as, and probably better than, other leading f/6. In practice, it's important to remember that you will rarely operate at the exact working distance and at the exact reduction factor that is specified. It is recommended for increasing true field in telescope with f/ratios of f/10 or higher. This focal reducer and field flattener consists of a four-element multicoated 40mm lens in a metal cell. 3 focal reducer provides a faster f/6. The Antares SCTFR is the standard thread-on F/6. 3 system for imaging or visual use when used with an f/10 SCT or other compatible telescopes. However, this seems to be a fan favorite, and I would want to try it as well. Feb 29, 2016 · Unlike the Meade and Antares focal reducers I used in the past, which thread onto the SCT port, the Lepus fits a 2" visual back or focus drawtube. Antares' f/6. Focal length reduction is around 0. It is actually only a reducer, but it does increase true field at the expense of some increase in spherical aberration and some vignetting (dimming) at the edge of the field. 5x. The field flattener and focal reducer from Antares increases the light intensity: the aperture ratio of f/10 typical for SC telescopes is reduced to f/6. It is a high quality optical accessory that will provide excellent views and amazing astrophotographs of many objects when used with an appropriate telescope. 7X, but the exact reduction factor depends on the lens positioning between the objective and image plane. Use of this focal reducer effectively halves the focal ratio of your telescope, resulting in a wider field of view and significantly shortened exposure times for astrophotography This superb fully multi-coated double-element focal reducer takes advantage of the latest computer aided design techniques to achieve the highest standards of performance to dramatically increase the field of view (FOV) or imaging scale of your telescope regardless of brand or type. The reduction depends on the spacing of the reducing lens between the objective and the image plane. However, fainter DSOs that require extreme stretching, large integration times and faint nebulosity may be tougher to deal with, although not as much as I previously thought. ) that accepts standard 2" threaded filters and provides a nominal reduction of 0. 3 4-element fully multicoated reducer/corrector used on F/10 Schmidt-Cassegrain telescopes. This makes for more versatility in telescope mounting, but also removes some security since the focal reducer and camera/imager are only held to the telescope by the visual back or drawtube setscrew Antares 0. A slight nod to the Antares for heft and higher transmission, but points to the Celestron for nice threads and better contrast. 3 focal reducers sold on the market for a lot more. This filter threads on to the rear cell of your Celestron or Meade SCT telescope. 3 lens system used for f/10 Schmidt-Cassegrain telescopes but in a 2" barrel threaded for standard filters. It threads onto the rear cell of 5" to 16" Celestron and Meade Schmidt-Cassegrain telescopes, making it possible to have a dual focal ratio instrument without sacrificing image quality. 5x focal reducer screws on to any accessory (such as eyepieces, camera adapters, etc. Antares FR1 is a fully multicoated 25 The Antares FR2-0. 3 telescope. 3. Jan 6, 2020 · This focal reducer is great for visual usage, bright solar system targets, and brighter DSOs. 5x 2" Focal Reducer Focal reducers can be used either visually or photographically to decrease focal length and increase true field at the expense of some vignetting (dimming) at the edge of the field. Oct 11, 2008 · With a 2000mm focal length f/10 telescope like a 8" SC or 8" ACF, both the Antares reducer and the Meade reducer yield a 1260mm focal length f/6. Antares 2" 0. This makes the telescope a "faster" system with a wider field of view and brighter objects, requiring shorter exposure times when doing astrophotography. etcsqn thux kufqcax htbl qqhdo qcckcu qfuvw wlpge vjwlv xfzp