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Explore Scientific 2-inch Field Flattener


$199.99

Call 1(610)327-3500 for availability

SKU: ES-FF2F5/F7
Manufacturer: Explore Scientific

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Newly redesigned field flattener for use with Explore Scientific ED APO triplet refractors. A curved focal plane is an inherent feature in most telescope designs and is nothing to note for general stargazers. But, for astrophotographers, the consequences of that same curved plane can ruin hours of patient imaging. Designed for refracting telescopes, Explore Scientifics Field Flattener can tackle the edge-of-field aberrations caused by this necessary curvature to ensure your long night at the eyepiece will not be in vain. This accessory, which now has 55 mm of back focus, offers fully multi-coated optics and slides securely into the 2-inch eyepiece holder. This field flattener is an excellent choice for cameras with cropped sensors -- APS-C and smaller. It will not provide a flat field when used with full-frame cameras.

Explore STAR Warranty

All Explore Scientific Products sold within North America are covered by a standard one year limited warranty; however, when the new product is registered within 60 days of purchase, it is covered under the Explore STAR Transferable North America Unlimited Lifetime Product Warranty program. The full details of this extended warranty are available here (PDF, opens in separate window.)


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