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H-alpha imaging with the ST-7XE
(Under a bright moon and in the glare of an unshielded security light 50 feet away)

NGC 1499, California Nebula, a single 20 minute exposure taken with ST-7XE through a 100mm camera lens at F/2.8

NGC 2246, Rosette Nebula, two 10 minute exposures (averaged) taken with ST-7XE through a 100mm camera lens at F/2.0

NGC1893 region, a single 20 minute exposure taken with ST-7XE through a 100mm camera lens at F/2.8

All images taken with ST-7XE camera
Custom Scientific H-alpha filter (3nm bandpass)
Canon FD 100mm F.2 lens
For similar images taken with the ST-2000XM click here.
Michael Barber / SBIG