Tamron 500mm f8 Mirror Lens
Last night I stuck this mirror lens on the modified Canon 550d with a Lumicon Deep Sky filter. I attached it to the ball head on my Nano Tracker which was mounted on a Manfrotto Tripod and gave it 25 x 30 second subs @ 3200 iso. I got the polar alignment pretty close and was happy with what this 35 year old lens produced. Who said Mirror lenses weren't suitable for Deep Sky astrophotography?
Processed in DSS, STs and PS.
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