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Some
Equipment Specs and Data
and
handy photography information references |
Occasionally
I have need of some equipment spec or manual. In the case of
older or used equipment without original documentation, the
info was often difficult or impossible to find, even on the
web. I began collecting files and web links relating to my own
equipment, but the web links would too often disappear. In an
effort to solve this problem and have the data available to
me anywhere I had an internet connection, I began grabbing the
data and saving it online. I thought it might be useful to others
as well, so here it is. Keep in mind this only covers equipment
I happen to have, but in the case of older items in particular,
it may prove useful to some of you.
For equipment
not listed here, I can recommend these sites with lots of equipment,
reviews, specs and images, as well as "archives" of
discontinued items.
• http://www.the-digital-picture.com/
• http://www.bobatkins.com/photography/
• http://www.dpreview.com/
Canon
420EX Speedlite - jpeg with specs
How
To Read and Understand MTF Charts (Modulation Transfer Function)
Quick and
Dirty MTF chart explanation
MTF
Chart with Article as PDF
Exposure
Value, Footcandles and Lux Chart and info - web page
How to Select a Graduated Filter
To determine which strength filter to use, meter the foreground,
then meter the sky, calculate the difference in f-stops between
the two areas (e.g. 3 stops). Whatever the difference, use a
grad filter that is 1 STOP LESS THAN THE DIFFERENCE (e.g. 2
stops) or your skies will look too dark and phony.
| Full
stops |
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| 1/3
stops |
example- f/4 is two stops diff. to f/8
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