Viewfinders

[Tom Deering <tmd@xxxxxxxxxxx>]

On 11/5/99, Greg Erker wrote:
>>Be sure and checkout the Sputoniku
>>
>>http://www.geocities.co.jp/HeartLand-Keyaki/9400/hhan/hannt03_AD.htm
>
>  Cool. Looks like they replaced the regular screen with some sort
>of split image one and the canon prism.
>
>  I wonder how they got around the viewfinder lens field curvature
>problem.  Maybe they just calibrated it for the center and don't focus
>using the edges.

I'm wondering how many people use their viewfinder to focus?

Me, I use it for framing only.  In fact, I often use the glassless 
sportfinder, since there is no distortion, brightness or inverted 
image problems.

For focus, I either use the hyperfocal, or calculate an optimal focus 
point based on near and far objects. (Same idea, really.)  I set the 
lens using the numbers marked on the lens barrel.

I'm shooting for a range of focus, so the specific plane of perfect 
focus is not important to me.  Am I alone in my thinking?

Cheers, Tom