Hi, Currently I own Olympus M.ZUIKO DIGITAL 14-42mm 1:3.5-5.6 II R Sigma 60mm f2.8 DN Lens Olympus M.ZUIKO ED 75mm 1.8 Olympus M.ZUIKO DIGITAL ED 40-150mm 1:4.0-5.6 R But am thinking my next lenses will probably be: Olympus M.ZUIKO DIGITAL ED 12-40mm f2.8 Pro Olympus M.ZUIKO DIGITAL ED 60mm f2.8 Macro (for macro :smile And maybe the Oly 40-150 2.8 but thats a hell off a lot of cash and a very big lens - if I'm going that big as may as well get a 70-200 2.8 for my Canon. I did have the Oly 75-300 before I got the grip and felt it was too front heavy. So what do you guys think - can the 12-40 2.8 effectively replace all the primes it covers in real world usage. Oh, I'd best define real world usage to me - thats my family growing up - a four and seven year old - all rushing around, low light parties, taking pics when out with them of birds, animals an so on - to complicate matters I like the shallow DoF pop from narrow primes but done have the time to swap lenses all the time or have the free hands (or the will to carry) for extra bodies. Also what flash would you guys suggest, I don't usually use flash (despite having a few for my Canon setup that I can use on the EM10 on manual but they seem so big). Another way to put it I guess is what would be your ideal line up without breaking the bank?