There is always a bit play in the aperture ring because there cannot be a rigid connection between the aperture ring and the delicate aperture blades. This is normal and most Leica M lenses exhibit the same. The aperture ring will rotate about a 1/4 stop past F2 and F16 detents. There is no rattle or play when the lens is shaken. Aperture Ring: The aperture ring clicks cleanly from stop to stop in half-stop increments.When trying to “nail” focus at F2, this amount of focus ring travel is helpful for finessing smaller adjustments. From the minimum focus distance to infinity is about 135º of rotation. Resistance is smooth and even throughout the range. Focus Ring: Given that the focus ring is moving a larger mass compared to lenses like the 35mm F1.4 Summilux-M ASPH FLE or 50mm F1.4 Summilux-M ASPH, the focus weight is a bit heavier, but still a light action.The satin black anodized finish is flawless, though somewhat delicate (edges can brass easily). The knurled edges are crisp, well machined. Metal work is smooth with no CnC ridges or milling marks. There is no wiggle, wobble or play in the lens body. Construction: Other than the lens caps and red dot, the 90mm APO is all metal and glass.One only needs to handle the Leica 90mm APO for a couple moments to appreciate the design, manufacturing precision, materials quality and attention to detail: Since then the Leica 90mm Summicron APO has a staple in my kit. I have used the Leica 90mm F2 Summicron-APO since around 2006 / 2007, starting with the Leica M8. While a simple lens consisting of only 5 elements, the Leica 90mm F2 Summicron M APO is a very high performing lens and often considered amongst the M system's best lenses. In 1998 the Leica 90mm F2 Summicron-M APO was introduced.
#Leica 50mm summicron rigid update#
The next Leica 90mm Summicron-M update in 1980 radically reduced the size and weight, bringing us the form factor still used today for the current APO version. Partly due to World War II, the world would not see its first Leica 90mm F2 Summicron M until 1957. The 90mm focal length has been a staple of the classic Leica rangefinder system since 1937 with the market introduction of the 90mm F2.2 Thambar ( recently re-released by Leica). 5 Elements / 5 Groups, 1 Aspherical ElementĤ80 Grams / 16.1 Ounces (without lens caps)
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