[LargeFormat] 14" Dagor Coverage?

[Les Newcomer]

I've always heard that a Dagor covers 1.7 times its focal length. If
this is true then it won't cover 16x20.

14x1.7=23.8"
sq rt of ((16x16)+(20x20)=25.6"

so it MAY cover stopped down but the corners will suffer and they'll be
no room for movements.


Les


Clive Warren wrote:
> 
> Just back after another weekend away - left most of my gear at home as it
> was pouring with rain and forecast for the same all weekend.  As you may
> expect there was a morning of great clouds and some blue sky - should have
> just popped the gear in the boot of the car...... typical of English
> weather and I should have known better.
> 
> The list was very quiet again over the weekend so the little palm top
> wasn't really needed.... Anyway, thought I would break the silence and pass
> on a request for info. from someone in the f32 Forum - does anyone know the
> coverage of a 14" Dagor f7.7 and its performance?
> 
> The poster seemed to think that it may cover 16 x20.
> 
> Cheers,
>             Clive
> 
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