Tamron 35mm f/1.8 Di VC USD -is a unique stabilization and autofocus lens for full frame cameras. Its resolution is sufficient even for 50-megapixel cameras. The external difference between the lens is a silver ring near the mount. The lens is waterproof. The focusing ring is wide and comfortable, and its rotation is very smooth and soft. A scale of focusing distances is marked on the body. The Tamron SP 35mm f / 1.8 Di VC USD is very sharp at open apertures. Vignetting and a slight decrease in sharpness at the edges (which is common with all fast lenses) are typical for full-frame cameras. But on cameras with an APS-C matrix, the picture will have perfect sharpness across the entire field of the frame and the absolute absence of vignetting. Thanks to the use of elements made of low dispersion (LD) and ultra-low dispersion (XLD) glass, the lens copes well with chromatic aberration. The lens uses proprietary eBAND (Extended Bandwidth & Angular-Dependency) and BBAR (Broad-Band Anti-Reflection) lens coatings. They are designed to protect the lens from glare. On APS-C matrices, taking into account the crop factor, the lens will just give the same viewing angle as a fifty-kopeck piece on film. Therefore, owners of cropped cameras will find the Tamron SP 35mm f / 1.8 Di VC interesting as a very high quality "fifty per crop". For owners of full-frame cameras, the lens will give a slightly wider angle than 50mm. This allows them to shoot almost any subject - from landscape to portrait. The 35mm lens comes in very handy when shooting indoors: it gives you a fairly wide angle of view. The Tamron SP 35mm f / 1.8 Di VC is equipped with a USD (Ultrasonic Silent Drive) ultrasonic motor. In continuous autofocus mode, the lens is quite capable of tracking a moving object, the main thing is that it does not fly past you at great speed.