Stop-Down MeteringEdit
Stop-down metering is a technique used in TTL systems where light measurements are made through the lens, set at the taking aperture.
Stop-down metering
TTL metering in which the light is measured at the picture-taking aperture. As the meter just measures the light passing through the lens, there is no need for any lens-camera interconnections.
What is stop-down metering?
Normally your EOS camera will meter the light using the widest aperture possible for the lens.
Because it lacks a meter coupling prong for cameras made before Automatic Indexing (1977), you'll need to use stop-down metering with Nikon's earliest 1959-1976 cameras, like the Nikon F of 1959 and early versions of the Nikon F2.
Stitching "Stitching" is the term used to electronically join a series of images together to make one large image using software. Find out more.Stop-Down Metering A metering method that measures light with the aperture stopped down.
The K-7 has a KAF2 bayonet lens mount which can take lenses with a KAF3, KAF2, KAF or KA mount. There's no mechanical coupling to control the aperture on pre-A K-mount lenses, so it's stop-down metering only if you want to use older lenses.
 See also: Camera, Meter, Manual, Lenses, Mode
  
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