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ZWO 21mm M42 to M42 Extender (ZWO-T2-EXT-21) stockyIgnore field flatteners

ZWO 21mm M42 to M42 Extender (ZWO-T2-EXT-21) stockyIgnore field flatteners

Name: ZWO 21mm M42 to M42 Extender (ZWO-T2-EXT-21) stockyIgnore field flatteners
Brand: lichtblickpflege-alltagsbegleiter.de
SKU: 75259285196
Price: 17.00 USD
Availability: InStock
Rating: 4.3465 (6 reviews)

SKU: 75259285196

4.3

USD17.00 USD60.00

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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12

Live Spec

ZWO 21mm M42 to M42 Extender (ZWO-T2-EXT-21) stockyIgnore field flattenersThe extender is designed to help you to reach 55mm or any other back focus distance.

Store: lichtblickpflege-alltagsbegleiter.de · Domain: lichtblickpflege-alltagsbegleiter.de

Description

field flatteners

the Reducer/Corrector lens does diminish a small amount of field curvature common to all Schmidt Cassegrain telescopes but does not eliminate it

and the focal length can be shortened to 414mm

but the eye relief may be uncomfortably long for some users without eyeglasses

the simplest

ZWO 21mm M42 to M42 Extender (ZWO-T2-EXT-21) stockyIgnore field flattenersThe extender is designed to help you to reach 55mm or any other back focus distance.

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