ESATTO 2" ADAPTER FOR SCT WITH 3.3" THREAD 31 H-alpha (656nm) as well as

H-alpha (656nm) as well as SII (672nm)

25" eyepiece thread)

while the widest possible imaging field greatly facilitates the realization of variable stars

allowing you to easily reach prime focus

This 20 kg counterweight is exclusively designed for GM3000 mounts

ESATTO 2" ADAPTER FOR SCT WITH 3.3" THREAD 31 H-alpha (656nm) as well asThis adapter allows you to directly thread the ESATTO 2" onto the back of Schmidt Cassegrain telescopes such as the Celestron 11" & 14" SCT and EdgeHD 925, 1100 & 1400 which have 3. 3" SC threads. The ESATTO is the perfect solution for achieving precise focus and avoiding mirror flop and focus shift by leaving the mirror locked. Since the ESATTO has a depth of 67mm and the 3. 3 adapter has only 2mm of optical thickness, this leaves 77mm of backfocus