•Do not subject the
•If condensation forms on the
use a blower brush to clean all glass surfaces; as much as possible avoid using lens tissue. Gently wipe dirt, smudges or fingerprints with soft cotton moistened with a small amount of absolute alcohol, using a spiral motion from center to periphery. Make sure you leave no wiping traces.
If you use ether in cleaning the lens surface, smudges may appear on the surface; should this happen, wipe the smudges with a cotton cloth mois- tened with absolute alcohol.
•Altach both front and rear lens caps
ACCESSORIES
Supplied | Optional |
Front lens cap | Flexible lens pouch No. 61 |
Rear lens cap |
|
SPECIFICATIONS
Lens construction: | 5 elements in 5 groups |
Focal length: | 1.6X thai of lens in use (with |
Aperture coupling range: | f/1 B to f/32 |
Effective aperture: | f/2.9 to f/51 |
Focusing: | Via |
Power switch: | Provided; "ON/OFF" type |
Battery source: | Via electrical contact pins directly from the |
Focus lock: | battery power inside |
Possible via one focus lock button provided | |
Diaphragm: | Automatic diaphragm coupling provided |
Exposure measurement: | Via full aperture method; meter coupling ridge |
Reproduction ratio: | provided |
1.6X that of lens in use | |
Depth of field: | 1/1.6X that of lens in use (with |
Mount: | infinity) |
Nikon F mount (for both sides); AF electrical | |
Dimensions: | coupling pins provided on the rear side |
Approx. 88mm dia. x 43.8mm long (overall); | |
Weight: | 21 mm extension from flange |
Approx. 285g |
21