Does anybody own the 12-40 PRO lens and also own primes that cover a similar range? How's that working for you? I have primes in 14(P), 25(PL), 45(O). Tempted by the 12-40 but also think I'm insane to be even considering it. Would like to hear from anybody who is making it work -- and in what way do you make them all co-exist. Reasons I am considering it: 12-40 is not as bad at close focus / semi-macro as the primes. I don't do video but want to get into it, casually, but maybe the primes are too inflexible? Tell me your experience. the front-and-rear-cap-fandango to change lenses tends to mean that I don't change FL when I should and I miss shots, especially when playing tourist. The 12-40 is obviously no all-in-one lens, but is half a solution, without going 2 notches down in IQ for a superzoom. Or is there a quick/easy/painless way to handle several primes in the field? Tell me what works for you. Thanks in advance.