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ZWO 21mm M42 to M42 Extender (ZWO-T2-EXT-21) stockyIgnore 03lbs Field Stop 30

ZWO 21mm M42 to M42 Extender (ZWO-T2-EXT-21) stockyIgnore 03lbs Field Stop 30

Name: ZWO 21mm M42 to M42 Extender (ZWO-T2-EXT-21) stockyIgnore 03lbs Field Stop 30
Brand: andresignoretti.com
SKU: 75259285196
Price: 17.00 USD
Availability: InStock
Rating: 4.762300000000001 (30 reviews)

SKU: 75259285196

4.8

USD17.00 USD42.00

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ZWO 21mm M42 to M42 Extender (ZWO-T2-EXT-21) stockyIgnore 03lbs Field Stop 30The extender is designed to help you to reach 55mm or any other back focus distance.

Store: andresignoretti.com · Domain: andresignoretti.com

Description

03lbs Field Stop 30

6) filters

The faster f/ratio allows you to use slower film or shoot in lower light level situations and still properly expose your subject

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

ZWO 21mm M42 to M42 Extender (ZWO-T2-EXT-21) stockyIgnore 03lbs Field Stop 30The extender is designed to help you to reach 55mm or any other back focus distance.

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