Monday, 1 February 2010

Test Shots for ISO, Aperture and Shutter speed

I set up a simple method for taking some test shots of still life under constant light conditions to go through variations of ISO, Aperture and Shutter Speeds.
I set up two bottles of whisky (as they were near to hand) but also as they have writing on them would hope this woud show any blurring up due to depth of field changes (aperture).

I set everything up as follows to ensure the best test I could

  1. Two bottles up on a small coffee table at a diagonal.
  2. Set my camera up on my Velbond tripod to ensure the camera position was constant.
  3. I used my remote shutter release to make sure there was no camera movement.
  4. I set up the central focus point only and set focus on the label of the nearest bottle.
  5. I used the pop up flash on the camera

I then took a series of shots at one ISO setting then changed the shutter speed starting at 2 seconds and moving down by halving this till I got to 1/200 of a second (so 2 secs, 1 sec, 1/2 sec, 1/4 sec etc) Once I had done this I move the shutter speed to 1/30 sec and then went through a range of aperture (f numbers) starting at f3.5 down to f22.

After this I then moved the ISO to 400 and repeated the above process, then did the same for 1600 and 3200 ISO.

As a test the last shot I put the camera in full auto mode to see what the camera though the best settings were.

I will post a few pitures in my next blog, to see the whole session click here.

1 comment:

  1. Hi
    again the criteria you have selected do tick these off and are well written, etc..
    Look at your tracking sheets and see what is missing and tick off all the others so we know exactly where you are.

    steve

    ReplyDelete