Tamron SP 45mm f/1.8 Di VC USD

HIGH-END FEATURES, BUILD QUALITY AND PERFORMANCE MAKE THIS AN ATTRACTIVE PRIME RELEASED: 2015 PRICE NEW: £649/$599 SECONDHAND PRICE: ‘Excellent’ £300/$250 ‘Good’ £250/$210 With almost the same viewing angle as a more conventional 50mm prime, this Tamron beats most f/1.8 examples of the breed. It has a robust, weatherresistant build and a fast ring-type ultrasonic AF system. It also has 4-stop optical stabilization for sharp handheld shots. Optical highlights include two aspherical elements and an LD (Low Dispersion) element, plus Tamron’s high-tech EBAND (Extended Bandwidth & Angulardependency) and BBAR (Broad-band Antireflection) coatings. The result is ace sharpness with high resistance to ghosting and flare, while bokeh is beautifully smooth. Key points 1. USD autofocus The ring-type ‘Ultrasonic Drive’ AF system comes with full-time manual override and a focus distance scale. 2. Aperture diaphragm Bokeh is beautiful wideopen and very pleasing, even when stopping down. 3. Weather-seals There are weather-seals, including a rubber gasket on the mounting plate. Groups/elements: 10/8 Full-frame compatible: Yes Effective focal length (DX): 67.5mm Min focus distance: 0.29m Max magnification: 0.29x Autofocus: Ring-type ultrasonic Diaphragm blades: 9 Filter size: 67mm Dimensions (dia x length): 80x91mm Weight: 544g