Wednesday, June 16, 2010

Auto ISO

The cold winter weather has finally caught up with me and I am feeling a little fragile at the moment, so I have snuggled down on my recliner under a blanket with my laptop and have the fire roaring. I have certainly had enough of winter already and it has barely started.

One of the features on my new camera that I am enjoying is the Auto ISO setting. Usually I would stear clear of using such a feature in fear of getting a bunch of grainy images that were no use to me at all. Usually auto functions tend to use the high end of the range more often than we would use if we chose them ourselves. The Canon EOS 550D has a cunning new feature that allows you to set the highest limit that you are prepared to go to and it will move within that range only.

The camera goes up to 6400 but I am a little twitchy about that high a number so have set my camera to top out at 1600. I have tested this is various low light situations and have had nothing but good results so far, so I am really liking it. One less thing to worry about. I know many people would say you should use everything on manual settings but I am of a different mind. I have paid for a camera with a very complicated computer in it and see no reason not to use it.

Most of my images are shot on P for programe and with the ISO set to top out at 1600 there isn't much left for me to worry about other than focus. This is where I often will go to manual as the auto focus can be very annoying at times, focusing on the wrong things.

4 comments:

  1. If you look in the manual at the section entitled "Selecting the AF point", you can change which AF point the camera will focus around so you can select which object the camera will focus on. It requires more fiddling, but can be worth it if you're worrying about depth of field.

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  2. For me the second picture (orange and white fungi) is the picture of the week...

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  3. This can also be done by focusing on the spot you want and then moving the frame to compose the image how you want it while holding down the button at half way. Sometimes quicker than the fiddling :)

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  4. Thanks for the vote on pic of the week, it will go up there on the weekend.

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