ZWO 21mm Extension – M42 to M42
Use the ZWO M42 to M42 Extender, with 21mm of length, to reach the proper back focus for your system.This 21mm spacer is machined out of aluminum and black anodized.
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ZWO 21mm M42 to M42 Extension
Original price was: $12.60.$9.37Current price is: $9.37.
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