M4/3 is briliant, except for a few things...

Started Oct 29, 2012 | Discussions thread
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M4/3 is briliant, except for a few things...
Oct 29, 2012

I'm in the market for a new camera system after shooting vanilla Four Thirds for a while. Now my nicest lens (50-200) has broken, and I'm looking for a replacement -- and might as well jump systems while I'm at it, since there are no vanilla 4/3 bodies with modern sensors and the 50-200 isn't really long enough for what I want.
I'm seriously pondering getting an E-M5 after renting one for a weekend and being impressed as hell, but there are a few things that would make the decision a slam dunk -- things that ought not to be too hard to do.
1) A 300 f/4 lens that is up to Olympus optical standards. This shouldn't be too hard, as that is not a particularly hard one to design (compared to things like a 12 f/2). This, more than anything else, would be a trigger for me to buy an E-M5 tomorrow. I shoot little critters, and I'd like something better than the 100-300 at the long end (from what I've heard about it). It should focus quickly, have a minimum focus distance of no more than five feet or so, and be sharp enough to use with teleconverters… and it should be weathersealed.

2) Teleconverters. On conventional 4/3, there are quite a few applications for the things: sharp long lenses (which m4/3 needs, see above), but also giving macro lenses more working distance. In vanilla 4/3 there is a 35 f/3.5 macro lens that retains AF when used with a 2x TC: it doesn't matter if it's f/7 if you're actually using it as a macro lens, since you're after DOF anyway. Wouldn't it be nice to have a 120 f/5.6 macro lens for bugs?
3) Weathersealing! There's this brilliant weathersealed body but the only weathersealed lens is a slow zoom with lots of chromatic aberration. Olympus needs to design, or convince Panasonic to design, some serious lenses with weathersealing. 4/3 showed that it's possible to make an entire weathersealed lineup without sacrificing much. At a minimum, they should weatherseal the sorts of lenses people are likely to take into harsh conditions: a wideangle prime of good quality, a macro lens, maybe the 45/1.8, and their long stuff, along with maybe a 14-150-type superzoom.
4) Smaller AF points without having to use the clunky workaround of magnifying the finder view: I'd like small point AF while still in full-frame viewfinder mode. It shouldn't be too hard to get the "best of both worlds" of compact camera and SLR autofocus in terms of what gets locked onto.

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