The lens has the Crop 1.5 a figure that corresponds to a 50mm lens for small picture. I put this "50" on a Fujifilm X-E2 system camera (16 megapixel APS-C X-Trans CMOS II sensor, 7.6 cm (3 inch) LCD, Full HD, HDMI, USB) body only black one. Since this wonderful camera is only recently came out, I've only made a few hundred photos and first experiences. Nevertheless, I want to play these first impressions about this lens. I want to make it short. This lens is the reason that I'm excited right from the X-E2. The X-E2 is a camera that is quite demanding. You have to take photographs. Or you have to have the willingness to embrace it and learn it. The same applies to "the '50s". Because at close range you have to aim a bit more closely to the focal plane precise to have there, where it belongs. If you photograph a face from 75cm distance, the focus should really be on the surface of the eye - what can go wrong sometimes at full aperture. Precision and exercise are needed. And with impatient "Models" such as children occasionally sometimes a little luck. Sharpness and colors are fine, do not identify aberrations. The shallow drop at the edge is not noticed. But I also put a no lab material. The auto focus feature of the lens is rapidly, quiet and reliable. But what is a totally surprising discovery for me, is the focus manually. Thanks to the "Focus Peaking" function - at Fuji called highlight - makes it an amazing fun, especially in low light conditions to "M" to questions and to ask to see the camera precisely, was on site which just asked sharply. Through focus manually any shutter lag is eliminated. If you quietly and unobtrusively for example with the camera follows a conversation, you are no longer distracted trying to set the focus point on the right place and is better able to focus on to catch the right moment. The often annoying refocusing for the next picture is eliminated. It is immediately ready to fire. For this type of photography, "the 50" is ideal. ++++++++++++++++++++++++++++++++++++++++++++++++++ Supplement in March 2014 (after 100 days) I use almost exclusively the "50", so the 35mm lens discussed here. It is of exquisite quality, optically and mechanically. It corresponds very my way of seeing. Due to the low depth of field - wide open, especially at short distances - it provides a good crop. This makes it a wonderful portrait lens. And for spontaneous candid photography, it is also wonderfully suited. ++++++++++++++++++++++++++++++++++++++++++++++++++ Supplement the end of October 2014 (after nearly a year) and attempt of a conclusion I have next to the lens described here also the 14mm f / 2.8 and the 18mm f / 2.0. In addition, I use some of Canon FD lenses (85mm f / 1.2 and f 100mmm / 2.0). By far the most I use "the 50", so the XF 35 f / 1.4. It is mechanically robust. Also climate. Has already been through a lot. Unfortunately, even some not very gentle contacts frontally to the autofocus mechanism - what stop unfortunately sometimes happens. With more than 10,000 trips no wonder. Fortunately no permanent damage. The camera accompanies me often. The lens is my favorite lens. I'm a big fan of the low weight, the feel, the high optical quality, starting with sharpness and contrast, even at maximum aperture to color, distortion, nearly missing fringing, very low vignetting. Only one requires more practice: Still I mainly in the fast portrait photographing "the Committee", ie situations where the focus is not properly seated. Especially with my little daughter (2 years), which sometimes does not keep silent halt. The setting, after when you turn the focus ring (for manual focusing) automatically starts a significant increase in the viewfinder is useful for static subjects. When moving you need accuracy and occasionally some intuition or sometimes luck. Unfortunately, I'm the focus sometimes but just a couple of centimeters too far forward or backward. But if the focus is seated (in people stop on the eye surface), amazed again and again the "Knack Focus". As another reviewer wrote: "punched out" from the bokeh. That hits pretty well. In light situations where you could recently only dream to make fairly reasonable pictures today you get top quality. This one is with Fuji also easy go. The Leitz lens (SUMMILUX-M 1: 1.4 / 35mm ASPH) with the same focal length weighs 320 gr. The Fuji discussed here only 186 Gr. This is clear from a lot. The corr. LEICA M weighs again significantly more than my X-E2. And in the power, the Fuji does not hide. Especially in low light. The sensitivity range ceases at the current Leica M at ISO 6,400. For good reason. Because then comes especially much noise. In the Fuji X-E2 the range up to ISO 25,200 is enough. When X-T1 still a diaphragm higher. And since you can always recognize something in the pictures. When the noise performance of the Fuji X LEICA is superior to my impression (in the view to place the sample images to multiple apertures. The mentioned other alleged "weaknesses" of the lens (AF speed, volume of AF) I can not confirm. But most do not use the AF, but in manual AF mode only the AE-L button to prefocusing. The fine focusing is done manually. Whoever criticizes the rate of AF, the AF point might be something bigger (which affects strongly).
