The ZWO T2-T2 Extension 21mm is designed to help you to reach 55mm back focus distance
for example: attach the 21mm extender to ASI071 to reach 55mm back focus distance:17.5mm+21mm+16.5mm=55mm
SKU: ZWO-M42-M42-21mm
– Price shown includes GST
– GST is removed at checkout for NZ
