On Mon, 08 Apr 2002 Ken Durling wrote:

I read somebody saying (on another site) that on the eye-controlled
Elan II you can get a DOF preview by looking at the upper corner of
the viewfinder, which causes the camera to stop down and give you a
preview.   I've never heard this mentioned and the person writing was
not that experienced - is this true?  Interesting feature if so.  Or
is it?  If it's real, IS it useful?

Hi Ken,

The Elan IIe/50e/55 and the 5/A2e both have this "feature".

What I really mean is that instead a separate DOF preview button, Canon used the eye 
control feature to provide DOF preview that way.  One corner of the viewfinder has a 
little square (parallelogram actually) which when looked at activated the DOF preview. 
  Having used both models, there were 2 problems that I found:

1. When I wanted the DOF preview to activate it (mostly) never would.  ECF has worked 
very well for me on all models that I've used it on, but DOFP has been a very hit and 
miss affair.  I've heard of this problem with many users of these cameras.  Maybe the 
problem was that the ECF calibration didn't include the DOFP activation marker(?).

2. Sometimes when eyeballing the edges of the viewfinder checking what's in and out of 
frame, the DOFP would activate - usually when I least expected it and not always when 
I was looking in that area of the frame.

So while it's a novel idea, the implementation doesn't match a dedicated DOFP button, 
and as much as I love ECF, I was glad to see they'd moved away from the ECDOFP (how's 
that for an acronym - almost as good a BEETTL!) concept with the 3 and 30/7e.  

Regards
Gary



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