>> http://members.home.net/jul.loke/
> "Lars Michael" <[EMAIL PROTECTED]> wrote:
> pardon my ignorance, but if I don't know any of those
> parameters and variables, what is your lens calculator
> used/good for?
Hi Lars,
LOL. You can safely ignore the other numbers that do not
interest you.
I also remember getting a first "Scientific" calculator
and wondering what to do with all those extra buttons when I
wanted to add up a grocery bill! Standard deviation of the
price of milk indeed :-)
Assuming that you are using D30 with a 17-35mm lens, here
is a walk-through:
1) Browse to the lens calculator
2) Click "RESET"
3) For "Frame Format", select "EOS D30".
The frame size is shown as 22.7mm x 15.1mm
4) Now type "17mm" into the "Focal length" box.
Look at "Field of View", shown as
67.278 degrees x 47.749 degrees
[ Note: The equivalent lens for 135 film is a 27mm lens. ]
5) Use a calculator to check this math:
To cover 360 degrees, you will need 5.35 frames of a 67.278 degrees
If you use stitching software that needs a 50% overlap, this means
that you will need about 10 to 11 frames.
Cheers
Julian Loke
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