If there was a pro m4/3s,...

squeegee

Mu-43 Veteran
Joined
Jan 26, 2010
Messages
403
What you need to do is calculate the 'Depth of Field'. With most legacy lenses, it's easy to do because of the engraved aperture/depth of field guide on the lens barrel. Depth of field is a combination of focal length, aperture and subject distance. Here's a calculator that can assist: http://www.dofmaster.com/dofjs.html.

Cheers

Ray
That's what I tried last time, that's how I arrived at roughly 7 or 8 metres (But I used another calculator http://tawbaware.com/maxlyons/calc.htm )

Using this one, it pretty much says my infinity distance is 4.5 metres. Oddly enough I just tested that and it does seem to work, I focused across the room at roughly 5 or 6 metres away, then looked at the top of a few buildings 200 to 300 metres away in zoom mode and they really were in focus.

4.5 metres is a very reasonable distance for me, It would mean that if I had a focus lock feature (hrmmm maybe it does I'll have to look into it now), I could lock my focus at infinity and I'd never see focus speed problems again right? It would also seem to imply, if I took movies, just stand more than 4.5 metres away all the time, and there won't be this focus-hunting problems everyone talks about.

I guess my question would then be... wouldn't this mitigate half the worlds focus speed concerns?

Am I the only one who thinks in such a crazy way? I've never seen anyone ask anything like this before.
 
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