Equipment
Mounts:
Skywatcher Eq6 Pro Mount (still haven’t settled on a scope for the EQ6 L)
AstroTrac TT320x
Manfrotto O55MF3 Tripod + Manfrotto 410 GearHead & Manfrotto 488 RC2 BallHead
Optics:
Leica/Leitz 180/f3.4
Nikon AI 50mm f1.2
Olympus Zuicko 50mm f1.8
Canon EF 100-400 f4.5-5.6 IS L
Canon EF 17-40 f4 L
Makinon 500mm f/8 catadioptric (mirror) lens
Imagers:
Canon EOS 40D (modified for increased H-alpha)
Canon EOS 7D
QHY5v Guider (to use with the EQ6 Pro)
Accessories:
Astronomik CLS Light pollution filter
Astronomik H-Alpha filter
Canon TC-80N3 cable release
Please get in touch asap. I’m considering getting a Canon 17-40 L lens, and am short of time for a couple of ebay possibilities. I see you have been using one, and would very much like your opinion of the lens for astrophotography, particularly its performance zoomed out.
Best regards, Peter.