Tamron AF 17-50mm F2.8 SP XR Di-II LD Aspherical Specifications

Product ID:

#A16

Compatibility:

APS-C only

Diagonal Angle of View:

78° - 31°

Maximum Magnification:

1:4.5

Minimum Aperture:

F32

Number of Aperture Blades:

7

Iris Pattern:

rounded

Minimum Distance:

27cm

Filter Thread:

67mm

Maximum Diameter:

73.8mm

Length:

83.2mm

Weight:

430g

Focus Type:

internal focus mechanism

Full Focus Throw:

50°

Zoom Type:

rotary

IR Capability:

poor performance reported by DPanswers

Lens Hood:

DA09

Produced:

2006

Tests:

PhotoZone tested on EOS 350D; DxO Labs; SLRgear; Photodo; Popular Photography

PopPhoto Measurements:

17.36-50.37mm F2.74-2.93 at 1:8.8-1:3.9

Additional Information:

The lens received the EISA Lens of the Year Award 2006-2007. It features ZoomLock. A rebadge was also available by Promaster (compare).