|E||The lens is equipped with electromagnetic aperture control and provides very accurate and fast exposure which is very important in continuous autofocus mode.|
|ED||The lens incorporates one or several low dispersion elements to minimize chromatic aberrations and ensure excellent sharpness and contrast even at maximum aperture.|
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|Maximum format:||35mm full frame|
|Diagonal angle of view:||97.4° (35mm full frame)
73.3° (Nikon APS-C)
|Lens construction:||17 elements in 13 groups, including 2 ASPH, 3 ED|
|Closest focusing distance:||25 cm|
|Number of diaphragm blades:||9|
|Maximum diameter x Length:||Ø89 x 124 mm|
|Materials:||Metallic barrel, metallic mount|
|Fluorine coating:||Front element|
|Filter size:||No thread|
Design and Features
The lens can be tilted up to +/-7.5 degrees and shifted up to +/-12 mm. The tilt and shift functions can be used singly or in combination. The lens can be rotated through +/-90 degrees with click stops at every 30 degrees to change tilt or shift direction; tilt function rotates 90 degrees left with click stop at 45 degrees which allows to set the direction of tilt function parallel or perpendicular to shift. Shift function no longer requires locking and unlocking.
Due to the prominent convex profile of the front element the lens does not have a filter thread.