ZWO 21mm M42 to M42 Extender (ZWO-T2-EXT-21) stockyIgnore the Reducer/Corrector lens does diminish

the Reducer/Corrector lens does diminish a small amount of field curvature common to all Schmidt Cassegrain telescopes but does not eliminate it

the simplest

field flatteners

5mm Cooling Regulated Two-Stage TEC Delta T 35°C-35°C below ambient Camera Power consumption 650mA at 5V Cooler Power consumption 12V at 3A Max Working Temperature -5°C — 45°C Storage Temperature -20°C — 60°C Working Relative Humidity 20% — 80% Storage Relative Humidity 20% — 95%

ZWO 21mm M42 to M42 Extender (ZWO-T2-EXT-21) stockyIgnore the Reducer/Corrector lens does diminishThe extender is designed to help you to reach 55mm or any other back focus distance.