Full-frame DSLR

Many digital cameras, both compact and SLR models, use a smaller-than-35 mm frame as it is easier and cheaper to manufacture imaging sensors at a smaller size.

Historically, the earliest digital SLR models, such as the Nikon NASA F4 or Kodak DCS 100, also used a smaller sensor.

When a lens designed for a full-frame camera, whether film or digital, is mounted on a DSLR with a smaller sensor size, only the center of the lenses image circle is captured.

When used with lenses designed for full frame film or digital cameras, full-frame DSLRs offer a number of advantages compared to their smaller-sensor counterparts.

The full-frame sensor can also be useful with wide-angle perspective control or tilt/shift lenses; in particular, the wider angle of view is often more suitable for architectural photography.

[6] Lower size sensors also allow for the use of a wider range of lenses, since some types of optical impurities (specifically vignetting) are most visible around the edge of the lens.

[9] As a consequence, full-frame DSLRs may produce better quality images in certain high contrast or low light situations.

[10] Modern photolithography equipment now allows single-pass exposures for full-frame sensors, but other size-related production constraints remain much the same.

[25] The first full-frame DSLR cameras were developed in Japan from around 2000 to 2002: the MZ-D by Pentax,[26] the N Digital by Contax's Japanese R6D team,[27] and the EOS-1Ds by Canon.

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The sizes of sensors used in most current digital cameras, relative to a 35 mm format
An APS-C format DSLR (left) and a full-frame DSLR (right) show the difference in the size of the sensors.
The Nikon D6 is Nikon's flagship full-frame DSLR
The Pentax K-1 II is Pentax's flagship full-frame DSLR