I'm not a HUGE ultrawide shooter, i in many ways regret the Tokina 11-16 purchase, its been used like 3-4 times and then sat around. My eye just isnt there for ultrawide stuff usually.. 24mm(FF Equal) is about as wide as i normally go, and the Tokina doesnt focus close enough to do the ultrawide stuff i really enjoy (Getting super close to a subject and distorting the perspective) so i could sell off my Tokina and feel little regret.. the other lenses on my 7D are harder to part with
I already got rid of the 28mm f/1.8, as this setup is replacing it.. It was never a lens i particularly loved either so it wasnt a hard one to part with.
Of course, lets be fair here, I'd be comparing less to 35mm full frame, More to APS-C, and in APS-C terms, the closest to the 20mm f/1.7 is the 24mm f/2.8 EF-S, and f/2.8 on APS-C is closer to f/4 in FF terms, So if anything, m4/3 has a tiny advantage there. Comparing to the 30mm f/1.4 Sigma or a 35L isnt quite fair (that would be more the 25mm f/1.4 Summilux, and f/2 vs f/2.8 in FF equivalency... In Sony terms, we'd be looking at the 35mm f/1.8 OSS, Which is f/2.5 if my maths are right.. which isnt really a big difference)
And that right there is where i was comparing, The other mirrorless systems, NOT to a full frame camera, Thats MASSIVELY an unfair comparison, But given Sony has nothing quicker than f/1.8 in the E-mount (Excepting the 35mm f/1.4 which im totally not buying for a bloody A6000!) the difference between the a6000 and the m4/3 system isnt really as big as one would expect.
That being said, one of my biggest fears of m4/3 is that i wont be able to achieve the look i desire due to the deeper depth of field, Thats why im trying to keep my costs down on the stuff.. and why im probubly going to try to stick to a body and maybe 2 lenses for now, the 20mm and then something slightly longer and macro-y (the 45mm perhaps) and thats Im gearing this camera to supplement my 7D at this point, Not supplant it. The idea is a small camera that goes in my messenger bag, Everywhere with me, maybe a coat pocket kinda deal, and gives me solid IQ.
The Sony has been almost entirely shelved for that reason, the good lenses (24 f/1.8, 16-70 f/4 Vario-Tessar, 90mm Macro) are all $1000 each. To be fair, m4/3 doesnt have a normal zoom that interests me (a 12-50 that isnt f/6.3 on the long end) but i can easily get the 20mm f/1.7 and the 45mm for less than ONE of those lenses i mentioned....
*edit* I shoot for fun, but im a gear head, I have some exceptional glass, and im a glass > body person, I'd rather have an older body and some fantastic glass to go with than a great body and poor glass. the one big appeal of m4/3 is that a lot of the lenses on the system ARE fantastic, there seem to be very few horrible lenses like on Sony.. and thats probubly BECAUSE of the tiny sensor..
To that end, as i said, i have big heavy awesome glass for my 7D.. and thats the problem. What I really want is a camera and two lenses, a short 35-50mm prime, and a short macro. m4/3 suits this better than Sony since Sony's short macro is god awful (Again, REALLY Sony?) that fits into my messenger bag without being too heavy big or awkward to carry around all the time. IQ that gets close to my 7D (If not exceed it..)