Tiggerlover48 said:
I looked at the above and WOW there were some awesome pictures. I just bought a Sony H-5 - I've never had a digital and have only had a point and shoot!!! So that makes me pretty clueless!!!! So help me. I saw posts that said "Canon 50mm 1.8 set at f2.8, ISO 800, 1/125 sec" "1/6s f/5.6 at 48.0mm iso1600"
Help what does all of that mean!!! And how do I get my camera to do it!!!!
Quick version....
50mm this is the lenses focal lenth
1.8 is the maximum appature of the lens
f2.8 was the acctual appature of the lens when used
ISO 800 is a film speed number
1/125th sec is the time of exposure.
Basically photography is all about light. There are different factors that go into capturing that light.
Apature is how wide an opening do you have in your lens for the light to come through. The smaller the number the bigger the hole that light can get through. This also effects depth of field for focusing as well.
IS0 This is a carry over from film, the faster the film could record information, the higher the ISO. The faster it can record information, the less light that is required for the picture. There is a trade off though, as the faster the film or sensor in our case, the grainer or noisyer the picture will be. (not as clear)
Exposure time. This is simple, how long is the lens open to expose the sesor to light. The longer the time, the more likely you or your subject will move, thereby creating blurr. Rule of thumb for sharp pictures is the speed should be faster than 1/focal lengh of the lens.
Hope that helps a little bit.