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William Optics

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Item Includes Description Features Specifications

William-Optics Apochromatic Field Flattener and 0.8x Focal Reducer for 66 to 90mm Telescopes

Mfr. Part: 1831WEFLAT2     SKU: WOFF66

William-Optics Apochromatic Field Flattener and 0.8x Focal Reducer for 66 to 90mm Telescopes

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Description
NEWLY re-designed focal Reducer / Field Flattneer. It now boasts a removable 2" nosepiece and rotating function.

The field flattener is optimized for APS size chips, and recommended with telescopes from 66 to 90mm. Suggested lens to chip distance for optimal results is 56mm.

The field flattener has an SCT-type thread that will easily screw onto your ZenithStar 66 SD APO to achieve an amazing ultra-wide field at f/4.8 You will not need to buy two different products for your 80mm refractors and your 66mm refractors. All in ONE!

Simply loosen the set screws on the side and your adapter will rotate 360 deg. with a thumbscrew to lock it into place!

The antireflection multi-coatings on all optical surfaces will boost transmission and enhance your astro-imaging performance!

What you care most, your shots will show pinpoint stars and you will maximize to the full your apochromatic refractors' potential. Exclusively from William Optics, this new reducer/field flattener retails at only US$ 148 as a launch price promotion.
 
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