SkyWatcher Reducer / Corrector for PRO 120 ED
0.85x Focal Reducer/Corrector for Sky-Watcher PRO 120 ED APO is designed for serious Astro-Imagers.
Optimized for the Sky-Watcher PRO 120 ED APO, this superb quality accessory effectively reduces the telescope’s focal length by a factor of 0.85x and provides much improved field-edge correction.
SkyWatcher Product Number: S20202
- Additional Information
SKU SW-S20202 UPC Code 50234202022 Manufacturer Sky-Watcher Barrel Size 2" Warranty 1 Year Warranty
- Included Items
- SkyWatcher Reducer / Corrector for PRO 120 ED
- Two Year Limited Warranty
- Questions & Answers
Product QuestionsWhat is the actual difference between the focal reducer for the Skywatcher 120 ed and the 100 ed?
Johnpolitte@Gmail.comQuestion by: john politte on Dec 19, 2015 1:53:00 PMThe glass is likely the same with both reducers, but the mechanical spacing from the rear lens to the threads is longer with the 120mm reducer to correct for the faster native focal ratio (f/7.5 vs. f/9 for the 100mm) You could interchange reducers on the scopes, but the field will not be quite as flat - especially on larger APS-C size DSLR sensors.Answer by: Chris Hendren (Admin) on Dec 20, 2015 10:50:00 AMHi,
Does this reducer will fit the Esprit 120 ED Super Apo? If yes, does it work in the DSLR "chain", together with the SW M62x1 field flattner?
Thanks in advance, FernandoQuestion by: Fernando on Jan 21, 2016 10:00:00 AMUnfortunately, this reducer will not work correctly with the Esprit, as it was designed for a 120mm f/7.5 doublet, which has a different optical design and focal ratio from the Esprit. The Esprit was designed to work best only with the included flattener.Answer by: Chris Hendren on Jan 21, 2016 10:18:00 AM
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