cyvideo
Veteran
For Super 35 E-Mount shooters, this might be a go. It's also stabilized. If it's anything like the FF 28-70 it will be a cracking good lens for a decent price, about $800. Basically, like a 24-105 F/4.0 FF equivalent on a Speed Booster but one that works with Sony's proprietary Hybrid AF and inbuilt lens distortion, shading, and CA correction algorithms (Sony owns part of Tamron) My FF 28-75mm version focuses as well as the Sony 24-70mm G Master on the A7III. Also, the 28-75 in my example is parfocal which was a big bonus. Wonder if this 17-70 will behave in a similar manner?
Chris Young
https://petapixel.com/2020/12/02/tamron-unveils-17-70mm-f-2-8-vc-lens-for-aps-c-mirrorless-e-mount/
Tamron 17-70mm F/2.8 Di III-A VC RXD for APSC E-Mount
Maximum Aperture F2.8
Angle of View (diagonal) 79° 55'-23° 00' (for APS-C frame mirrorless format)
Optical Construction 16 elements in 12 groups
Minimum Object Distance 0.19m /7.5 in (WIDE), 0.39m /15.4 in (TELE)
Maximum Magnification Ratio 1:4.8 (WIDE) / 1:5.2 (TELE)
Filter Size φ67mm
Maximum Diameter φ74.6mm
Length* 119.3mm (4.7 in)
Weight 525g (18.5 oz)
Aperture Blades 9 (circular diaphragm)**
Minimum Aperture F22
Standard Accessories Flower-shaped hood, Lens caps
Compatible Mounts Sony E-mount
Chris Young
https://petapixel.com/2020/12/02/tamron-unveils-17-70mm-f-2-8-vc-lens-for-aps-c-mirrorless-e-mount/
Tamron 17-70mm F/2.8 Di III-A VC RXD for APSC E-Mount
Maximum Aperture F2.8
Angle of View (diagonal) 79° 55'-23° 00' (for APS-C frame mirrorless format)
Optical Construction 16 elements in 12 groups
Minimum Object Distance 0.19m /7.5 in (WIDE), 0.39m /15.4 in (TELE)
Maximum Magnification Ratio 1:4.8 (WIDE) / 1:5.2 (TELE)
Filter Size φ67mm
Maximum Diameter φ74.6mm
Length* 119.3mm (4.7 in)
Weight 525g (18.5 oz)
Aperture Blades 9 (circular diaphragm)**
Minimum Aperture F22
Standard Accessories Flower-shaped hood, Lens caps
Compatible Mounts Sony E-mount
