Astro-Tech 0.8x reducer/field flattener for Astro-Tech AT102EDL Doublet apo refractor


Availability: In stock

This 0.8x focal reducer and field flattener is designed specifically for astrophotography with the Astro-Tech AT102EDL f/7 apo refractor.
Our Product #: AT102EDLRF
Astro-Tech Product #: AT102EDLRF

Product Description

<div>This Astro-Tech #AT102EDLRF 0.8X focal reducer/field flattener is designed specifically for prime focus astrophotography with the Astro-Tech AT102EDL apo refractor. While it may also thread in and work well with other brands and models of f/7 refractors that use a 2.5" focuser, its performance with other scopes is not guaranteed.</div>
<div>The fully-multicoated Astro-Tech #AT102EDLRF reducer/flattener converts the 714mm focal length f/7 Astro-Tech AT102EDL refractor into a 571mm f/5.6 system for faster and wider field astronomical and terrestrial photography.&nbsp;</div>
<div>In addition to reducing the focal length of the telescope and thereby increasing the photographic speed, the #AT102EDLRF flattens the normal field curvature inherent in all refractors. This provides images that are sharply focused out to the corners of DSLR and CCD imaging chips. Stars look sharp and point-like all the way across the field in your images. You don't have to worry about photos that are sharp in the center and blurry at the edges.</div>
<div>The Astro-Tech #AT102EDLRF reducer/flattener threads into the focuser drawtube; The threading is metric 63x1.&nbsp;&nbsp;</div>
<div>The camera side of the #AT102EDLRF reducer has 48mm T-threads to connect to a T-ring and DSLR camera body. A slip-on soft rubber cover protects the T-threads when the reducer is not in use, while a second slip-on cover is provided for the 2" scope-side barrel. Back focus is 55mm from the shoulder of the reducer to the image plane, the standard spacing for DSLR camera bodies.&nbsp;</div>

Tech Details

Weight 8 oz.
Warranty 1 year


Review by:
This reducer works well with my Astro-Tech 102 EDL. My camera is an ASI-294mc. This is not a particularly big sensor (4/3 size). Stars are good out to the edge with the specified 55mm working spacing. It is a large lens that attaches to the telescope via a 63x1.0mm connection. It should work well for larger sensors. I use mine with a 63x1.0 mm to 2" nosepiece adapter because I like to swap visual for electronic assisted astronomy with the camera quickly. I had to remove the 102 EDL's camera rotator to achieve focus with this setup. (Posted on 1/28/2022)
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