Originally posted by raider The largest lens I have is the Tamron 70-200/f2.8. The others are relatively "light" such as the T28-75/f2.8, DA14 and the upcoming DA12-24. Do you guys think the battery grip is useful for my lens combination?
Personally I think that the battery grip is useful with any lens, it makes it much easier to shoot vertically. For my personal likings, the K-7 is also too small for my hands, so the grip makes it much better. With AA batteries in the grip it becomes heavy, so for some events when you know you will not need the grip or extra battery, take it off and leave it at home.
I use AA's in the grip (rechargable NiMH) and they last longer than I expected. I mostly do landscapes, not firing at high burst rates. If that is the case, the AA's will not be able to give enough power.