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Tamron has announced a pair of full-frame f/1.8 primes

Tamron has announced a pair of full-frame f/1.8 primes that will be part of a redesigned SP series. The SP 35mm f/1.8 Di VC USD and SP 45mm f/1.8 Di VC USD are both full-frame-compatible lenses offering image stabilization (VC), fast maximum apertures, good close focusing distances AND, according to Tamron, high quality optics.The design team at Tamron has clearly been watching Sigma - the  look of these lenses is very similar to the ART line at Sigma and that's a good thing.  They do add a moderate amount of weather sealing not offered in the ART line from Sigma. The Canon and Nikon mounts also offer image stabilization - not often seen in primes this fast.SP stands for superior performance. Tamron 35mm f/1.8 VCTamron 45mm f/1.8 VCPrice will be $599 each and available at the end of September. (Sony mount* available later this year) This sounds reasonable for lenses of this caliber and speed with VC.   A few more specs worth detailing more-The close focusing capabilities are impressive. The 45mm can focus as close as 11.42" (.29m) and the 35mm can focus as close as 7.87" (.20m). That close with that wide an aperture will give you VERY shallow depth of field.9 aperture blades should provide smooth bokeh (the more blades the smoother the out of focus circles. The Old nifty-fifty had just 5 blades and you could often see pentagonal shapes of bokeh)Lens hood included!They are calling these lenses weather resistant.  I will mention that Tamron has one of the best warranties in the bsiness with 6 years for US buyers and quick repair turn around time.Preorder at B&H Photo Video45mm f/1.8 for Canon $599 | Nikon $599 | Sony A $59935mm f/1.8 for Canon $599 | Nikon $599 | Sony A $599 

Full Specs

SP 45mm F1.8 Di VC USD Specifications

Focal Length: 45mmMaximum Aperture: F1.8Angle of View (diagonal): 51°21' (for full-frame format) : 34°28' (for APS-C format)Optical Construction : 10 elements in 8 groupsMinimum Object Distance: 0.29m (11.4 in)Maximum Magnification Ratio: 1:3.4Filter Size: 67mmMaximum Diameter: 80.4mmLength: for Canon 91.7mm (3.6 in): for Nikon 89.2mm (3.5 in)Weight: for Canon 540g (19 oz): for Nikon 520g (18.3 oz)Aperture Blades: 9 (circular diaphragm)Minimum Aperture: F16Standard Accessories: Flower-shaped lens hood, Lens capsCompatible Mounts: Canon, Nikon, Sony*

SP 35mm F1.8 Di VC USD Specifications

Focal Length: 35mmMaximum Aperture: F1.8Angle of View (diagonal): 63°26' (for full-frame format): 43°29' (for APS-C format)Optical Construction : 10 elements in 9 groupsMinimum Object Distance: 0.2m (7.9 in)Maximum Magnification Ratio: 1:2.5Filter Size : 67mmMaximum Diameter : 80.4mmLength: for Canon 80.8mm (3.2 in): for Nikon 78.3mm (3.1 in)Weight: for Canon 480g (16.9 oz): for Nikon 450g (15.9 oz)Aperture Blades: 9 (circular diaphragm)Minimum Aperture: F16Standard Accessories: Flower-shaped lens hood, Lens capsCompatible Mounts: Canon, Nikon, Sony**Available in Canon, Nikon and Sony mounts - sadly that is the Sony/Minolta mount not the FE mount for the a7 series. Sony mount also does not offer VC - all sony bodies are stablized.