This will also increase the ISO speed used by the camera.

How can you control ISO speed to get the best shots possible?

ISO speed is one of three things that determine the quality of your photos.

A film with a 200 ISO speed would result in either under-or-over-exposure.

Sample images with many cameras at all ISO speeds can be compared.

Could they tell an ISO speed from an aperture?

ISO speed is often high (to allow faster shutter speeds) and may be left in auto.

There's just one small twist to the equation of low ISO speeds and bright light.

ISO speed is used in digital cameras to judge the relationship between the exposure rating and the sensor data values.

This control lets you manually set the ISO speed, when you want to.

The reasons to stick with the slowest possible ISO speeds are convincing.

Earlier models, from the first few years of production, had a maximum ISO speed of 200.

ISO speed ratings increase geometrically even though your eyes perceive the progression to be linear, like the way f stops are numbered.

What is ISO speed?

Once film is loaded, the ISO speed must be set on a scale located in the shutter speed dial.

DX film code recognition to automatically set ISO speed.

And even if you don't know an ISO speed from a fill-flash button, chances are the quality of your pictures improved during the last 12 months.

Properly, the meter calibration constant as well as the ISO speed should be stated, but this seldom is done.

As long as your camera has the necessary electrical contacts in the film chamber, the ISO speed will automatically be sent to its exposure-metering system.

Some other meters, especially digital models, can indicate EV for the selected ISO speed.

Instead, cartridges will go into cartonless containers with ISO speeds printed in large-sized numbers for quick and easy identification.

I was thinking the same thing, and also noticed that the ISO speed for the 20D was almost always significantly higher than on the other cameras.

For a given ISO speed and meter calibration constant, there is a direct relationship between exposure value and luminance (or illuminance).

The truth of the matter is, a film rated with an ISO speed of 200 is not necessarily the right film for our hypothetical Harry.

Now, however, the ISO speed is encoded right on the metal cartridge of the film, according to what has been dubbed the DX code.