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| p.1 #2 · Compact but fast vintage alt glass recommendations? To adapter-mount on mFT |
You've got some competing priorities here. For compact and fast you really want OM lenses, but many of them simply aren't cheap. Good options in your pricerange include the 28/2, 50/1.4, 85/2. Don't expect much faster than f2 though, OM was never about being really fast outside of the 50's. But they do offer the widest range of f2 lenses, covering every focal length from 21mm to 250mm except 135mm, and all are noted for their small size, and most for their performance too (the 35 being the exception, it's merely a good lens).
FD nets you fast & cheap, but not compact. But relatively cheap 24/1.4's and 85/1.2's are not to be dismissed.
Nikon gets you a mix, slower than some of the FD options and often more compact, but more expensive. Good options include the 35/1.4, the 50/1.2 and 50/1.8's, the 85/1.8 and 85/2 and the 105/2.5.
Note you shouldn't ignore native lenses. You'll need them for any wide options anyways due to the crop factor, and the 45/1.8 is so good and inexpensive it probably should just come in the box. Frankly, given your constraints I'd be buying the Panasonic 14/2.5, the Oly 45/1.8 and I'd roll the savings into a PanaLeica 25/1.4 (if you budget $1500 for three lenses you should be able to get that set, 14/2.5's broken out of kits are under $200 on eBay these days)