Di: Digitally Integrated Design, is a designation Tamron puts on lenses featuring optical systems designed to meet the performance characteristics of digital SLR cameras.
This lens employs an IF (Internal Focusing) system that maintains the overall length of the lens during focusing. Uses two LD (Low Dispersion) glass elements that effectively compensate for chromatic aberration. Provides high-contrast, outstanding image quality and a soft out-of-focus background effect. Incorporates an AF/MF one touch switchover mechanism built into the focus ring(for Canon & Nikon only). Super performance series provides high performance through outstanding design specifications.
FEC (Filter Effect Control): Features the new FEC (Filter Effect Control) function that enhances operational ease of Polarizing Filter use. The new Filter Effect Control is designed to rotate the filter to the desired position while the hood is attached. This is accomplished by turning the FEC ring that in turn rotates the portion of the filter mount where the filter is mounted.
Feature:
Currently the lightest and most compact 180mm macro lens on the market, this
lens will provide 1:1 magnification, and the two LD elements included in the
design of the lens make sure you get the sharpest quality possible.
An excellent lens for close-up work in the field.
- 1:1 Magnification
Allows for life-size image on the negative or slide; at a distance
of 18.5" (47 cm)
- Internal Focus
The lens neither extends nor contracts physically when focusing; all
moving elements are contained within the lens barrel
- Di
Digitally Integrated lenses are designed to meet the
performance characteristics of digital SLR cameras
- FEC
Filter Effect Control is designed to rotate the
filter to the desired position even with the hood attached. This is
accomplished by rotating the FEC ring that in turn rotates the portion
of the lens where the filter is mounted
Specification:
| Filter Size |
72mm
|
| f/Stop Range |
3.5-32
|
| Minimum Focus Distance |
18.5" (47 cm)
|
| Magnification |
1:1
|
| Angle of View |
14 Degrees
|
| Groups/Elements |
11/14
|
| Tripod Collar |
Yes
|
| Length |
6.5" (16.5 cm)
|
| Maximum Diameter |
3.3" (8.4 cm)
|
| Weight |
2 lb (921 g)
|
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