Technical Glossary

Shutter

In photography a shutter is a light-tight, mechanically movable element which lies within a camera in the optical path in front of the image plane. During the exposure time this element is opened for the duration corresponding to the preset shutter speed, in which the light coming from the lens hits the image plane. After exposure has occurred the shutter closes and protects the photosensitive layer of the film material or the digital image sensor against the unintentional incidence of light up to the next shooting.

Spherical Aberration

Super Performance

Tamron´s Super Performance series is a line of high performance lenses featuring high design specifications.

 

Tamron´s Super Performance ( SP) Line-up:

Di II Lenses
SP AF10-24mm F/3.5-4.5 Di II LD Aspherical [ IF]
SP AF 17-50mm F/2,8 VC XR Di II LD Aspherical [ IF]
SP AF 17-50mm F/2,8 XR Di II LD Aspherical [ IF]

SP AF60mm F/2.0 Di II LD [ IF] Macro 1:1

Di LensesSP AF 28-75mm F/2,8 XR Di LD Aspherical [ IF] MACROSP AF 70-200mm F/2,8 Di LD [ IF] MACRO SP AF 200-500mm F/5-6,3 Di LD [ IF] SP AF 90mm F/2,8 Di MACRO 1:1SP AF 180mm F/3,5 Di MACRO 1:1