This information exchange was most commonly used for print aspect ratio, but could also be used to record the date and time that the photograph was taken, store a caption, and record exposure data such as shutter speed and aperture setting.
32.
In 1932, Adams had a group show at the M . H . de Young Museum with Imogen Cunningham and Edward Weston, and they soon formed Group f / 64 which espoused " pure or straight photography " over pictorialism, being a very small aperture setting that gives great depth of field.
33.
The " aperture stop " is the aperture setting that limits the brightness of the image by restricting the input pupil size, while a " field stop " is a stop intended to cut out light that would be outside the desired field of view and might cause flare or other problems if not stopped.
34.
The " hi-speed " auto-exposure tends to favor higher shutter speeds and wider aperture settings than the " normal " auto exposure mode, while the " dual " mode offers " normal " auto-exposure with lenses at focal lengths less than 135 mm and " hi-speed " auto-exposure if a lens is longer than 135 mm.
35.
The aperture selector has a hyperfocal table that shows the " range of sharpness from X to infinity for the aperture setting, about 7 feet for F / 4, about 6 feet for F / 5.6, a little closer than 5 feet for f / 8 and a little closer than 4 feet for f / 11.
36.
An aperture setting of f / 3.2 will still be diffraction-limited, but less visibly so : the loss of detail from a 1.5-pixel Airy disk is on the same scale as the loss of detail from interpolating the Bayer filter and loss of detail from noise reduction .-- talk ) 22 : 26, 22 June 2012 ( UTC)
