16mm-18mm-21mm f/4 ASPH Tri-Elmar-M

• Leica Order No. - 11606 - 11642 (also known as "WATE")

• Production era - 2006-Current

• Lens mount - Leica M quick-change bayonet with 6 bit lens identification bar code for digital M models

• Number of lenses/groups - 10 /7

• Focusing range - 0.5 m / 1.64 ft < ∞ range from 0.5 to 0.7 m separated by index

• Aperture - f/4-f/22 - Preset, with click-stops, half values available

• Smallest object field 24x36 35mm Film - 16 mm focal length: 915 x 1373 mm, 18 mm focal length: 833 x 1250 mm, 21 mm focal length: 725 x 1087 mm

• Smallest object field 18x27 Digital - 16 mm focal length: 688 x 1032 mm, 18 mm focal length: 626 x 939 mm, 21 mm focal length: 545 x 817 mm

• Largest reproduction ratio at 0.7 m - 16 mm 1:38, 18 mm 1:35, 21 mm 1:30

• Angle of view (diagonal, horizontal, vertical) 24x36 35mm Film - 16 mm: 107°, 97°, 74° / 18 mm: 100°, 90°, 67° / 21 mm: 92°, 81°, 60°

• Angle of view (diagonal, horizontal, vertical) 18x25 Digital - 16 mm: 90°, 80°, 59° / 18 mm: 84°, 74°, 53° / 21 mm: 75°, 65°, 46°, corresponds approx. to a focal length of 21/24/28 mm with 35 mm-format

• Position of entrance pupil - 408 mm / 16.0 in (related to the first lens surface in light direction)

• Scales - Combined meter/feet graduation with uniform gray figures below 0.7 m

• Filter mount/Lens hood - Male thread, non-rotating and with stop for filter holder or lens hood / Screw-on type 12458 lens hood (included in delivery)

• Accessories - Filter holder for E67 size filters - Polarizing filter 13407 w/ adapter 14473 - UVa filter 13329

• Viewfinder - Universal Wideangle Finder M 12011 - with frames for 16, 18, 21, 24, and 28mm

• Materials - Anodized aluminum and optical glass

• Length to bayonet flange with/without lens hood - 62/72 mm, 2.4/2.8 in

• Largest diameter with/without lens hood - 54/58 mm, 2.1/2.3 in

• Weight - 335 g / 11.8 oz

• Inscription - LEICA TRI-ELMAR-M 1:4/ 16-18-21 ASPH. 4XXXXXX

• Designer - Christoph Horneber - patent filed 12 Sep 2007

• Leica Tech Data - 16mm-18mm-21mm f/4 ASPH Tri-Elmar-M.pdf

Comment

• On the street - $US 4,450 in 2010
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16mm-18mm-21mm f/4 ASPH Tri-Elmar-M Serial Numbers

Serial numbers compiled from known lenses

SN Start	SN End	Product	Year	Total
-3995104	4061739-	16mm-18mm-21mm f/4 ASPH Tri-Elmar-M	2006-2010	66,636+
TOTAL	ASSIGNED	SERIAL NUMBERS	2006-	66,636+