On Wed, Jun 14, 2000 at 11:16:14PM +0200, Hans van Veluwen wrote:
> : > them. I may add them in the future. Just say please ;)
> 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?
What exact is e-sif?
> All I need is a Java Script writing volunteer that can implement the
> following simple formulas and put it in a neat form:
I´ve already seen such a calculator in the web. - But it seem`s it`s not
acessable at the moment.
The link to it was (German site):
http://www.mayn.de/home/ebaumann/links/links.schaerfentieferechner.html
>
> a) hyperfocal distance H = (F*F) / f*0.033
> b) short end DOF distance = (H*u) / H + (u-F)
> c) long end DOF distance = (H*u) / H - (u-F)
>
I´ve done calculations DOF with a spreadsheed. But there were always slight
differences
compared to the data in the Oly-doc`s. Mostly with respect to close focusing.
Mabe Olympus payed attention to optical design?
Frieder Faig
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