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[OM] Re: E-3 focus problems?

Subject: [OM] Re: E-3 focus problems?
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Mon, 31 Dec 2007 14:42:11 -0500
Slow down, Dan.  That feature isn't scheduled until 2009.

Chuck Norcutt

Dan Mitchell wrote:
> Moose wrote:
>> A perfectly accurate AF, when you located the AF point on your subjects 
>> eye, would ask you whether you wanted the focal plane at the nearest 
>> point of the roughly spherical object it detects, the deepest visible 
>> point of it, or at an average. Then it would want a discussion of the 
>> amount and desired direction of DOF.
> 
>   One thing that I'd really like would be a numeric display of DOF -- 
> the camera knows what lens I'm using, what the focal length is, what the 
> aperture will be when it stops down to take the photo, so it can do the 
> math to tell me how much DOF I have.
> 
>   Sure, I can hit the 'stop down' button, but I very rarely find that to 
> be much use -- even on OMs with big bright viewfinders, I can't tell 
> which bits of the image will be in focus in the final thing, or at least 
> not well enough to be useful.
> 
> 
>   (now, this is one place where a lot of AF spots and some whizbang 
> computing could possibly be handy -- while the camera is racking focus 
> back and forth to get things "in focus", it could track the in-focus 
> distance to each focus point.
> 
>   That then gives it a 3-d model of the world, because it knows how far 
> away the world is at each of the AF points -- and it could then 
> interpolate, and _highlight_ the bit of the image that would be in 
> focus.. This only works as long as the world is 'smooth' between AF 
> spots, of course, but I think otherwise it should theoretically be 
> possible.)
> 

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