Saturday, July 4, 2009

Julie (149) - Di


For a photographer, Di has one of those faces to die for!

These 6 are all I took of her. They are in order of the taking: top to bottom. And they are not processed in any way. Here are the stats:
Top left: F4.5, 1/50, ISO 800, 74mm
Top right: F4.5, 1/50, ISO 800, 74mm
Mid left: F5.6, 1/15, ISO 800, 250mm
Mid right: F5.6, 1/50, ISO 1600, 214mm
Bottom left: F5.6, 1/50, ISO 1600, 250mm
Bottom right: F5.0, 1/50, ISO 1600, 100mm

Pretty much just shows me that all these things are related: firstly how close do I need to get. There is a massive difference between 250mm and 74mm. THe other three stats - ISO, Av and s/s - are either closing down or opening up light. The result of this is apparent in the image.

Would have been good to get a F5.6, 1/50, ISO 800, 75mm. How would this have differed from the last three? I am going much closer, right? Lighter? Darker?

1 comment:

Ann said...

My guess would be darker as not only are you decreasing the size of the aperture (letting less light in) you are decreasing the amount of time the light is coming in. I think you need longer shutter speeds the smaller the aperture (higher number). This is why the F1.8 type lenses are called fast lenses. They let in much more light so you can use faster shutter speeds which lets you hand hold in situations where you couldn't with a 5.6 lens. I think this is right.

Sounds good, doesn't it? Wish I could put it into practice.

The 2 middle ones look about right to me. Still trying to figure out how the ISO affects things, I think that because that would be slower as well it would also require a longer shutter speed than 1600.