For the camera settings challenge:
http://365project.org/discuss/themes-competitions/16792/camera-setting-challenge-22
One of the main reasons i started on 365 was because, being a control-freak, i really felt it was time i got to understand my camera well enough to feel like i was, y'know, actually in control... understanding the relationship between aperture (or f/stop), ISO and shutterspeed is pretty much critical to this endeavour...
Anyhoo, not sure this was the best choice of subjects for this particular exercise, but thought it kind of interesting none-the-less... you'll pretty much need to view this large to see the settings...
Btw, i had intended to shoot in JPEG but forgot to switch from RAW... so in post i just did the bare minimum of processing and applied the same settings to all shots...
First off, i held the aperture constant at f/11... top level is ISO-100, middle is ISO-200 and bottom is ISO-400... going across the top i used shutterspeeds 1/200s, 1/100s, 1/50s, and 1/10s...
As i was using a tripod and this is a still object, i would never need to go over 100-ISO which is why i say this may not have been the best exercise here...
but which shutterspeed i would use would depend on the effect i was going for... something high key-ish would need a longer shutterspeed than 1/10 at ISO-100... altho' i kinda like the light in the 1/10s at ISO-400...
for a moodier feel i would likely choose a shutterspeed between 1/100 and 1/50 and boost the light bits in processing...
boosting the ISO would only be important if i was trying to catch a moving target, or if i was shooting handheld...
:)
Really what a fantastic example of how changing one of the 3 a bit can really make a difference!