> On Apr 18, 2015, at 2:26 AM, steve harley <[email protected]> wrote:
> 
> On 2015-04-17 17:24 , Eric Weir wrote:
>>> On Apr 17, 2015, at 1:03 PM, steve harley <[email protected]> wrote:
>>> there are, of course, also old school "slide-rule" type DoF calculators 
>>> that don't require batteries
>> 
>> References for any of those?
> 
> here's one; costs a lot more than an app …
> 
> <http://www.bhphotovideo.com/c/product/155145-REG/Rodenstock_260700_Depth_of_Field_Calculator.html>

Thanks, Steve. Yes, pricey. I found a simple spreadsheet calculator here: 
<http://cameradojo.com/2012/10/22/how-to-calculate-depth-of-field/> i’m 
installing Numbers on my iPhone. Hopefully it will prove usable.

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

"What does it mean...that the world is so beautiful?" 

- Mary Oliver 









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