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Certified Keeper Tamron 17-70mm f/2.8 Di III-A VC RXD
88 PixelMeter Score 19 reviews

Pros Pros
  • Sharp image quality with minimal focus breathing
  • Fast, quiet, and reliable autofocus performance
  • Effective built-in vibration compensation
  • Versatile focal range with a constant f/2.8 aperture
  • Durable weather-resistant construction with fluorine coating
Cons Cons
  • Noticeable vignetting and distortion at wider focal lengths
  • Larger and heavier physical footprint than some alternatives
  • Complex or busy bokeh quality
  • Lacks physical switches for focus or stabilization control
  • Softness and performance drop-off at the longer end of the zoom

Launch price Launch price $799
Focal length & aperture Focal length & aperture 17-70mm f/2.8
Mount & coverage Mount & coverage Sony E, Nikon Z, Canon RF, Fujifilm X · APS-C
Stabilization Stabilization Optical IS
Close focus Close focus 19 cm (0.21x)
Filter thread Filter thread 67mm
Autofocus motor Autofocus motor Stepper motor
Weight & size Weight & size 525g (1 lb 2.5 oz) · 74.6 x 119.3 mm (2.94 x 4.70 in)

Announcement date Announcement date December 3, 2020
Launch MSRP Launch MSRP $799
Lens mount Lens mount Sony E, Nikon Z, Canon RF, Fujifilm X
Image circle coverage Image circle coverage APS-C
Lens type Lens type Zoom

Elements Elements 16
Groups Groups 12

Focal length (wide) Focal length (wide) 17mm
Focal length (tele) Focal length (tele) 70mm
Max aperture Max aperture f/2.8
Minimum aperture Minimum aperture f/16
Diaphragm blades Diaphragm blades 9

Diagonal angle of view Diagonal angle of view 79° - 55°

Autofocus motor Autofocus motor Stepper motor
Minimum focus distance Minimum focus distance 19 cm
Maximum magnification Maximum magnification 0.21x
Focus mechanism Focus mechanism Internal focus

Optical stabilization (OIS) Optical stabilization (OIS) Yes

Aperture ring Aperture ring No

Weight Weight 525g (1 lb 2.5 oz)
Maximum diameter Maximum diameter 74.6mm (2.94 in)
Length Length 119.3mm (4.70 in)
Filter thread Filter thread 67mm
Weather sealing Weather sealing Partial sealing
Internal zoom Internal zoom No

Lens hood Lens hood Yes