Interpretation of marking lenses leading manufacturers

Here are the most common designation markings leading manufacturer of optics. Interpretation of marking lenses will help you understand the issues of acquiring the necessary optics and its technical characteristics. The creation of this material, I used data on the Internet, as well as data publication "Foto&Video".

Symbols markings leading manufacturers of optical

transcript labeling Nikon lenses

A - Pentax lens aperture control with support from the chamber.
AD (abnormal dispersion) - designation low-dispersion glass, which reduces chromatic aberration in lenses Tamron.
APO (apochromatic) - lenses with improved chromatic aberration correction.
Refraction of light flux depends on the wavelength, so around objects may occur colored halo. The farther from the center of the frame object, the greater the distortion.
AL/ASP/AS/ASL/ASPH (aspherical lens) - the lens using aspherical elements. Their use can improve the quality and wide-angle Zoom Lens. Allows you to reduce the size and weight reduction objectives.
ATX (advanced technology X-tra) - designation for high-quality lenses Tokina.
AF - Nikon lenses that do not have their own autofocus motor. Focusing is done by using the built-in camera of the motor.
AF-S - Nikon lenses with an autofocus motor.
D (distance) - Nikon lenses and Minolta, capable of transmitting information about the focusing distance to the camera.
DC (defocus image control) - a feature that allows additional control over sharpness back/foreground by turning the special rings mounted on the lens Nikon. This function is effective at portraiture.
DI (drop-in) - drop-in filter.
ED (extra low dispersion) - Extra-low Dispersion. The use of a specially designed glass with ultra low refractive index. Allows you to effectively eliminate chromatic aberration in lenses Nikkor.
EX (excellence) - Sigma lenses with improved quality surface treatment.
Fisheye - the lens of the "fish-eye" with an angle of view of 180°.
G - high quality lenses Minolta, Sony prof. series c AD and ASP components. Marked with a gold ring.
G - Nikon lenses without aperture ring. These lenses are not compatible with the camera works only with manual focus. Fully compatible only with Nikon F5, F100, F80, F65, D1 and D100.
HSM (hyper sonic motor) - the term for the Sigma brand ultrasonic autofocus motor.
IF (inner/internal focusing) - internal focusing lens with optical unit, ie, front lens does not rotate.
I/R (internal focus/rear focus) - Canon lenses with internal focus or focus rear lens group (front the lens does not rotate).
IS (image stabilizer) - electro-optical image stabilizer lens in Canon, dampens the vibration of the lens at the hands of the photographer. Camera Canon (pictured below) I was shot in my photo equipment store "Foxtrot" with the assistance of the administration; assistant - an employee of the store.

Photographer holding a camera in the hands of the lens

L - high-quality Canon lenses with ASP elements. Use of fluorite elements or special UD-glass with Extra-low Dispersion. Marked with a red ring.
LD - term Tamron, the same as AD.
Macro/Makro - lenses with a specially designed optical design, allows you to take in the scale of 1:2 - 1:1.
OS - Sigma lenses with optical stabilizer.
PC (perspective correction) - shift or tilt of the optical lens unit to correct perspective distortion.
PZ (power zoom) - motorized Zoom lenses in Pentax.
R (rear) - mount the filter on the rear of the lens.
Reflex - super-telephoto mirror construction (two mirrors) to significantly reduce their weight and size.
RF (rear focus) - Focusing the rear lens group in the lens, Sigma and Nikon. The front lens does not rotate during focusing.
SIC (super integrated coating) - multi-coated lenses next-generation lenses Nikon.
SWM (silent wave motor) - silent Wave motor. Designation of Nikon lenses with fast and quiet focusing mechanism based on the ultrasonic motor.
TS-E (tilt/shift-EOS) - Canon lenses with perspective distortion correction.
UC (ultra compact) - ultra compact lenses Sigma.
USM (ultra sonic motor) - very fast noiseless drive mechanism focusing lenses Canon. Application of ultrasonic motor.
VR (vibration reduction) - Designation system vibration damping chamber and image Stabilization in Nikon lenses.

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