Graphics Programs Reference
In-Depth Information
TS-E (Tilt-Shift with an electromagnetic diaphragm)
Moves Focal Plane to control
perspective and Depth-of-Field. Manual focus only.
USM - (Ultrasonic motor)
Autofocus faster and quieter than AF lenses. Also draws
less power from the camera than AF lenses.
Nikon (Nikkor) Lenses
AF
Autofocus.
AF-I (Auto Focus-Internal)
Found in older Nikkor lenses and is inferior to AF-S sys-
tem.
AF-S (Auto Focus - Silent)
Uses “Silent Wave Motor” which focuses faster and quieter
than typical AF lenses. Equivalent to Canon's USM system.
CRC (Close-Range Correction)
Lens elements can move independently resulting in
better focusing ability at close distances.
D (Distance/Dimension)
Conveys focus distance information to camera's computer
which then calculates correct exposure. Not supported by all Nikon Cameras.
DX Mount
For use on cameras with APS-C sized sensors. Is typically cheaper, smaller
and lighter than FX Lenses. Fits Cropped-Frame Cameras only.
ED (Extra-low Dispersion)
Minimizes chromatic aberration while effectively improv-
ing color correction and sharpness.
FX (F-mount)
For use on Full-Frame Cameras. Will fit any Canon SLR.
G
Must be used with Nikon DSLR body that can adjust lens aperture via the camera's
command dial.
IF (Internal Focusing)
Similar to Canon's I/R system. Found in most modern Nikon's
telephoto and zoom lenses.
Micro
For macro photography.
