Autofocus speed comparison of mirrorless?

Started Apr 26, 2014 | Discussions thread
Lumixdude Senior Member • Posts: 2,782
Re: Autofocus speed comparison of mirrorless?

The Nikon 1 really is a toy camera aimed at point and shoot photographers. It's been picked up by certain DSLR users for the fact that it has a 2x crop factor meaning that any lens you attach to it will double in focal length, a 300mm will become a 600mm.

If you want APS-C like image quality you will have to upgrade at least to a Micro Four Thirds camera. Micro Four Thirds cameras have fast focus speed, faster than most mirrorless cameras in general e.g. Fuji, Canon, etc...

There is a few caveats, due to the contrast detect auto focus if you're not shooting contrasty objects i.e. if you're trying to focus at infinity with the sky in a landscape photography it can sometimes get into a situation where the camera wont find focus.

The other one is that Micro Four Thirds isn't particularly good at shooting fast moving objects, birds, wildlife, sport, etc... The OMD E-M1 and E-M10 have made some inroads into that but for action photography you're still going to want a traditional DSLR.

Outside of that, it will be fine Micro Four Thirds produces APS-C image quality in all aspects except for high ISO. Micro Four Thirds don't yet have a great ISO range. ISO100 to ISO1600 are all useable, beyond that you run into issues. As a comparison you might triple that and be shooting comfortably with ISO6400 in a pinch on an APS-C DSLR.

The Question then becomes, how much are you going to invest into faster lenses for low light photography. If you're interested in shooting low light with a Micro Four Thirds camera you really need to be shooting with an F/2.8 or faster lens.

By the time you buy a fast lens for Micro Four Thirds cameras such as the Olympus 12-40 F/2.8, Panasonic 12-35 F/2.8, Panasonic 35-100 Zooms, or any of the fast primes such as the 12/2, 15/1.7, 17/1.8, 20mm F/1.8 or 45 F/1.8 your back up to the same price point as an APS-C DSLR.

If money and performance is an issue you have to spend a lot to gain equivalence with Micro Four Thirds but all of the above lenses are very good and designed specifically for the Micro Four Thirds image circle.

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