ZWO M42-M42 Extender 21mm

ZWO M42-M42 Extender 21mm

  (3 Reviews)
✓ 2 year warranty


2x in stock shipped 1-2 working days

About this product

Model:  zwo_m42-m42-21mm
Part Number:  M42-M42-21MM

ZWO M42-M42 extender with 21mm length. 

Customer reviews

Average Rating (3 Reviews):  
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Rating (max 5):  
M42 to M42 extender
23 March 2021  | 

I purchased this extender to replace one I had modified to an M48 (female) to M42 (male) 21mm extender to fit the field flattener (PlanoStar x1) of my f7 APO refractor to give the correct back focus for my ASi533 OSC Cooled camera. As there were no other 48(f) to 42 (m) extenders.
My ASi533 kit is now back to normal, the extender is an exact match to the one I modified.

Rating (max 5):  
Excellent piece of equipment
22 September 2019  | 

Great fit between my camera and 2" adapter. Recommended buy.

Rating (max 5):  
Quailty Extender Ring
14 August 2018  | 

I used this to provide the corrct back focus when using the ZWO OAG with the ZWO ASI160mc Cool CMOS camera. Perfect fit.


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