Leica s Lens Name Simplified. Leica lens name / trademarks are basically the f/stop of the lens. f/stop Trademark f/0.95 Noctilux f/1 Noctilux f/1.2 Noctilux f/1.4 Summilux f/2 Summicron f/2.5 Summarit f/2.8 Elmarit f/3.5 Elmar f/3.8 Elmar, Super-Elmar f/4 Elmar f/4.5 Hektor Other Meaningful Marks, some of Leica s words are more meaningful.Mark Meaning ASPH Aspherical APO Apochromatic Tele, Telyt Telephoto Vario Zoom Tri*, Zoom (see Note) *Note Because Leica s M camera finders only work at a few fixed focal lengths, Leica s zooms for their rangefinder cameras only stop at three click-stopped values corresponding to the few available frame lines of the M cameras. Since Leica s zooms only stop at three settings, Leica calls them Tri-Elmar to avoid the word zoom. If you are interested to know how to Pronounce their Lens names please check out the section after the specifications.
Angle of view (diagonal, horizontal, vertical) for 35 mm / 24x36mm 47, 40, 27 degree Angle of view (diagonal, horizontal, vertical) for Leica M8 / 18x27mm 36, 30, 20 degree, corresponds approx. to a focal length of approx 67mm with 35mm-format. Number of lenses / groups 6 / 4 Focal length 50.1mm Position of entrance pupil 28 mm (related to the first lens surface in light direction) Focusing range 0.8m to infinity Scales Combined meter/feet graduation Smallest object field / Largest reproduction ratio (for 35mm) 338 x 508mm, approx. 1 14.1 Smallest object field / Largest reproduction ratio (for LEICA M8) 254 x 380mm, approx. 1 14.1 Aperture Setting / Function Preset, with click-stops, half values available Lowest Aperture value 16 Bayonet Leica M quick-change bayonet with 6 bit lens indentification bar code for digital M models Lens mount / Lens hood Non-rotating, internal thread for screw-on filters size E39, externa thread with stop for lens hood, protection ring for external thread included in delivery, lens hood available as accessory Dimensions length Approx. 33 mm, largest Diameter 51.5mm Weight Approx. 230 g.
From 1955 summer edition of Leica Photography this is how to pronounce the names ELMAR ell mar HEKTOR heck tore SUMMARON soom uh ron SUMMICRON soom ih cron SUMMITAR soom ih tar SUMMAREX soom uh rex STEMART seee mar TELYT tell eat.