By the way, dear friends, I have a question for your comments. I plan to buy a sencond lens for the CL. As the M21/3.4A (32.5mm on CL) is mainly for the documentary and street shot, I plan to buy a second lens for portrait. Meanwhile, I hope this lens is also good for street shot in the focal length around the 'normal' 50mm. I made some research according to the web reviews. I may have the following options. Leica lense group: M35/3.4A, M35/2A, M50/2, and M50/2.4; Zeiss group: ZM35/1.4, ZM35/2.8; Voiglander group: VM35/1.4, VM35/1.7, VM50/1.5. These lenses all deliver very good IQ, especially in point view of sharpness. Their rendering of color are the kind I like. For the Leica group, they should match the Leica CL the best among the three groups. Howerer, they are usually expensive than others. The Voigtlander group is usually the cheapest in price and has large apertutre and the color rendering is unique. However, the sharpness at the maximum aperture seems not so sharp as other lenses, accroding to the review by PCMAG. For the Zeiss group, the two lenses deliver very very sharp prictures even at their max aperture, especially the ZM35/1.4 even at f=1.4. However, the ZM35/1.4 is almost the biggest and heaviest one among all of the cited lenses. Meanwhile, either the Zeiss or the Voigtlander group is not optimized for the CL. To be recognized by the CL, they should be coded accordingly but I do not know how to do. How to select my second lense for the CL? My requirements include: portait and street shot, sharpness, large aperture, compatibility to the Leica CL body, compactness and light weight. The question seems radiculous. Anyway, your comments will be hghly appreciated.