Another Olympus E-M1 and SONY a7 walkabout test, high ISO

Started Jan 29, 2014 | Discussions thread
MatsP Senior Member • Posts: 2,249
Re: "But if you shoot at high ISO - a larger sensor is your friend."

if you can tolerate extremely shallow DOF!  And FF primes that are often optically poor at maximum aperture ...

this is the thing you notice right away with the very best m4/3 primes - they are really sharp wide open and have "useful" amounts of DOF isolation ... (and cost half as much)

You need to spend some time with the Panasonic 25mm 1.4 on a Oly OM-D body shooting in "low" light.  I can shoot an E-M1 at iso 1600 in most dim interiors and get enough shutter speed and that lens is very sharp at 1.4 while and giving f/4.0 FF like DOF character, which is where I prefer to shoot 50mm on FF both for sharpness and overall DOF character.  But that means my D600 has got to be at iso 6400 in the same light.  Couple that with very fast contrast detect AF and I really don't spot my D600 having much over the E-M1 at all - that is just the way it is.

Full frame gets sold on the magic of the very narrow DOF "look", but in practice, that look is an outlier most of the time.

Once upon a time when I was shooting FF - back in old film days - my biggest concern was to get enough DOF, not the opposite. Anyway I still, as an EM-5 owner, sometimes think that maybe I should get myself an FF digital. And the 7 and 7r really tempted me. After reading this thread they are much less tempting to me.

 MatsP's gear list:MatsP's gear list
Canon EOS 5D Mark II Olympus OM-D E-M5 Canon EF 50mm f/1.4 USM Canon EF 17-40mm f/4.0L USM Canon EF 24-105mm f/4L IS USM +3 more
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