On Dec 29, 2010, at 5:21 PM, steve harley wrote:

>> How far away should the yardstick be? What will be the indication of back- 
>> or front-focusing when I do this?
> 
> it doesn't have to be that far, but the farther away, the more precisely it 
> will measure, and a large aperture (shallow depth of field) helps; if the 
> viewfinder shows you've focused on 18", but the resulting image has 16" in 
> best focus, you'll know that the viewfinder is not accurate

Thanks, Steve. I check it out -- probably not till tomorrow afternoon.

Followup question regarding "correctability": If necessary, approximately what 
would it cost to get it done?

------------------------------------------------------------------------------------------
Eric Weir
Decatur, GA  USA
[email protected]





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