I have both, and have used them both with a housed F-100 and now a D-70. Ill soon be using them with my D200. Both will do 1:1 but like ssra30 says the 60 is harder to get 1:1 because of how close you have to get to the subject. This can also make it harder to position the strobes when shooting so close. The 60 does focus faster, hunts less, is quieter, focuses better in lower light, is smaller and lighter, which makes the rig more compact. I personally use the 105 more, but I like to get as small as possible, and do allot of dedicated Macro dives. The 60 will get you more photos in unknown conditions as you can do fish portraiture and diver half shots. Make sure you let us know how things work out, as I am very interested in info on The Aquatica/D200. Did you opt for the iTTL conversion circuitry? I have my D70 in an Ike housing but plan on going back to Aquatica for my D200.