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View Full Version : focal length + calculator

evilenglishman
25th of October 2003 (Sat), 04:54
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CyberDyneSystems
26th of October 2003 (Sun), 15:21
er,... seems a lot of work when compared to simply multiplying?
evilenglishman
27th of October 2003 (Mon), 03:11
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MiG82
27th of October 2003 (Mon), 04:05
Doing "original number + 0.5 x original number + 0.1 x original number" in your head doesn't take very long.

If you can't be bothered doing that, finding the calculator on your computer and multiplying is faster.
evilenglishman
27th of October 2003 (Mon), 06:43
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CyberDyneSystems
27th of October 2003 (Mon), 08:55
lol,.. having to go home,. turn on your pc,. wait for it to boot, load your browser and then click a link,. this is what I meant by complicated :)

Even if one were to print the chart,. the in the time it would take you to pull the paper out of your wallet and unfold it and read the tiny print,. I would have done the math for half a dozen lenses or more :)

Don't get me wrong, the chart is noce and illustrates the "equivilent focal length" for those just getting the gist of things. But really are we that bad at math?

//would that my tyoing were as fast and accurate as my math... :D