Hi Hans,
At 2000 June 14 - Wednesday 23:16, Hans van Veluwen <olympus@xxxxxxxxxxxxxxx>
spoke about *Re: [OM] Zuiko 28mm/f2.0: Shades & Coatings...* saying
> Ok, ok, 'nuf said, I'll see when I have time and energy to scan and add the
> lens cross section diagrams. I think I have all of them, MF, AF and PF.
> Maybe not all different versions.
Great!
>
> The DOF tables are a different story. Not only are many of them missing, I
> also don't see a point in publishing them. No one will ever use them.
> Besides, they're not typical properties of Zuiko lens design, only of focal
> length, aperture and distance (the three of them combined into magnification
> ratio).
>
> How about adding a generic DOF page to the e-sif that contains an online
> calculator that let's you enter these three parameters and calculates the
> DOF ranges?
You could link to see a plot online at:
http://www.dof.pcraft.com/dof.cgi
Or more: http://home.sol.no/~gjon/depth.htm
OMers can download f/calc to do this on their own machine, see:
http://www.cyberport.com/0.000000E+00tangent/photo/fcalc/
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