Celestron f/6.3 Reducer-Corrector

Technical Details

Celestron Reducer/Corrector f/6.3 Envisage possessing a dual-purpose telescope - one with an extended focal length for lunar and planetary exploration, and another with a shorter focal length designed for deep sky observation and astrophotography. This is precisely the functionality offered by the Celestron Reducer/Corrector Lens.

Key Features

• Reduces telescope's focal length and f/ ratio by 37%
• Easy to install
• Can be used for terrestrial digiscoping
• Housed in machined aluminium
• Compatible with a wide range of Celestron Schmidt-Cassegrain models

Achieve shorter focal length

Explicitly designed for Celestron Schmidt-Cassegrain telescopes, this unique lens reduces your telescope's focal length and f/ ratio by 37%, turning your long focal length telescope into a fast, short focal length instrument.

A f/10 focal ratio now achieves a f/6.3, while an f/11 focal ratio now achieves a f/7. For visual use, this means you get lower power with the same eyepiece and a wider field of view. Photographically you also get a wider field and much shorter exposures.

How to Use

The Reducer/Corrector is easy to install by threading the unit onto the rear cell of your Schmidt-Cassegrain telescope (or the reducer plate of the C11 and C14). Once installed, you can add additional accessories like T-Adapters, 1.25" Visual Back, Star Diagonal, or Off-Axis Guider. The Reducer/Corrector can also be used for terrestrial digiscoping.

The faster f/ratio allows you to use slower film or shoot in lower light level situations and still properly expose your subject. This fully multi-coated lens provides maximum light transmission with near full-field illumination. Place the plastic covers on the lens when not in use to reduce the dust collection.

Body

The lens is housed in machined aluminium for are machined aluminium black anodised. The internal surfaces are blackened and glare-threaded to provide the highest contrast. The lens has a knurled surface, providing a tremendous gripping surface for threading/unthreading.

Due to the design, the Reducer/Corrector lens does diminish a small amount of field curvature common to all Schmidt Cassegrain telescopes but does not eliminate it. High power views will provide flatter fields all the way to the edge, both visually and photographically.

Broad Telescope Compatibility

The Reducer/Corrector Lens is compatible with a wide range of Celestron Schmidt-Cassegrain models, including the C5, C6, C8, C9.25, C11, and C14.

It works seamlessly across popular series such as StarSense Explorer, Astro Fi WiFi, NexStar SE, and Advanced VX, making it a highly adaptable accessory for many existing telescope setups.