Exposure Assistant

Exposure Assistant is
a handy photographer’s utility that helps calculate correct exposure
settings for those times when the in camera exposure options are not
flexible enough. It is primarily beneficial in two situations:

• Determining long exposure shutter speed values
  • Most modern cameras will not calculate shutter speeds greater than 30
    seconds.  Most of the time this is not a problem, but what about
    those times where you have set up your tripod at dusk to get the
    perfect shot, you’ve set the ISO to 100 for maximum quality, and the
    aperture to f/16 for maximum depth of field.  All of sudden your
    camera is flashing “30″ meaning that the shot will need a shutter
    speed longer than 30 seconds, but your camera will not do it
    automatically.  In this situation, with Exposure Assistant you can
    switch to a full auto setting, input the values that the camera
    calculates and then enter your desired F-stop and ISO. Exposure
    Assistant will calculate the appropriate shutter speed.
    You
    will have to use the ‘bulb’ (B) setting (and a remote switch of some
    sort), but you will not have to guess how much longer than 30 seconds
    the shutter speed should be.
• Using an older camera without a built-in light meter
  • Though most of us primarily use digital cameras
    these
    days, inexpensive medium or large format photography using older film
    cameras is still a very viable option.  But many of these cameras
    do not have a built-in light meter for determining exposure
    settings.  An easy way to overcome this is to use a small digital
    camera to determine the correct exposure settings for the older
    camera.  Unfortunately the available settings on two different
    cameras do not always neatly line up forcing one to do some quick
    calculations to adjust between the two.  With Exposure Assistant
    you take the basic exposure settings as determined by the digital
    camera and then it transposes those settings for you to values that are
    available
    on the older camera.