1. Aperture (in conditions where it would be impossible to read a book - it shoots like during the day, though at ISO 1600 and higher, and the shutter speed is around 1/5-1/10 sec.) But the picture is quite smooth, without much noise. 2. The size is very compact even with a lens hood, after 18-200 it seemed that there was simply no lens))) 3. It perfectly washes the background (bokeh) and creates a feeling of airiness in the whole photo. At the same time, it is sharp in the focus zone, I would say NATURALLY sharp, without artificiality and kinks, but I did not notice soap. 4. I think that these focal lengths (35 mm) are the golden mean and the so-called "staff" on the crop (I put it on the d7000). 5. It focuses already at 15 cm from the front lens (although the description says 30 cm) and gives a very good picture, comparable to fixes (if 1x2 meters are not going to print an image of a ladybug or a flower). But you need to know that when shooting an object from a distance of 15-20 cm, at aperture 1.8, the depth of field will be about 1 mm, so if you want bugs, spiders, flowers or jewelry to be completely in the field of sharpness, you need to squeeze the aperture to f /6 or more! 6. Excellent compact and durable lens hood. 7. 7-bladed diaphragm (beautiful circles in bokeh). 8. Small filter diameter (52 mm), respectively, not expensive UV filters and others. 9. USM is more like a virtue (but personally, I think that at 35 or 50 mm it doesn’t matter, because usually they don’t remove the dynamics, so a screwdriver wouldn’t be a problem either). 10. Metal mount. 11. There is NO vignetting on my copy from 1.8 onwards.