Railfan_Bill wrote:
I shot this at wide-open aperture - f5.6 and hoped for the best. My next try will be with my Sigma "bazooka" the 150-600 mm lens I want to see how well my tracker can handle this lens.
I've seen pix off the Star Adventurer shot with a 400mm lens but that is getting pretty aggressive. It'll be interesting to see your 500-600mm results.