dmnelson wrote in post #11692081
Yes, aperture and MFD are the big things for me...
Aperture is important because the lights are kept pretty low in most aquariums, and you may not want to (and may not be allowed to) use a flash. From my experience you don't want anything slower than f/2.8 in typical aquarium lighting, which means a prime or a fast zoom.
Minimum focusing distance is important because you have to get up close to the glass to avoid glare and reflections. And if the subject is too close to focus on, there's nothing you can really do about that.
Sounds to me like you have the general idea...but regardless of whether or not you are allowed to use a flash, don't...it's your enemy shooting in to glass
Fast glass is good, however, shallow DOF is not necessarily a great help when shooting...again, deep in to the glass... Increasing your ISO will help significantly to increase your shutter speed (IMO, the most important setting) so as not to get blurred shots. I was down at Monterrey last winter and ran in to the same questions. Shooting my 5d2 at 32 and 6400 was the only way I was able to capture decent files with my 24-70 (My 70-200 never left my bag!). I tried using my 85/1.2 at 1.2 up to 2.0...and the DOF was just too shallow with the fast movement of the critters I was trying to capture. YMMV.
I didn't use the 100 macro, because I didn't have it with me...and that's my final point. Carefully pick your gear...as you can't bring everything, if you intend to enjoy the day
Make sure to spend some time enjoying the scene yourself, as I found it really easy to have my face buried in the VF all day...and I feel like I missed some stuff trying to get the "Shot"!
It's a tricky place to shoot...in the dark, with a reflective surface to overcome. Slower moving critters are easier. No flash! As high ISO as you're comfortable with on your camera...and I also found manually focusing helped a bit in case of AF interference with the reflective surface!
Good Luck
J