The Tamron SP 85mm F/1.8 is the world's first 85mm fast-aperture lens with image stabilization. Its unique design allows us to include our VC (Vibration Compensation) system---without the lens becoming too large or heavy. What's more, our SP 85mm F/1.8 delivers edge-to-edge viewfinder brightness for ease of composition and superior low-light performance. The fast aperture of the F/1.8 also offers the perfect balance of subject sharpness and bokeh, that dreamy blur which separates your portrait subject from the background. The lenses also have a weather resistant construction. Compatible with TAMRON TAP-in Console.