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Compare Samyang 10mm F2.8 ED AS NCS CS vs Tamron 17-70mm F/2.8

Construction

Aperture Blades
6 blades, Manual aperture setting via lens ring
9 blades
Colors
Black
Form Factor
Ultra Wide-Angle Prime Lens
Standard Zoom Lens
Image Size
APS-C
APS-C
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Lens Mount
Canon EF-M-mount, Canon EF-mount, Micro Four Thirds-mount, Fujifilm X-mount, Micro Four Thirds-mount, Nikon F-mount, Pentax K-mount, Samsung NX-mount, Sony A-mount, Sony E-mount
Sony E-mount
Motor
Stepper motor
Optical Formula | Elements
14 elements
16 elements
Optical Formula | Groups
10 groups
12 groups
Optical Formula | Special Glass
2 aspherical elements, 1 ED glass element groups
1 aspherical + 2 glass-molded aspherical elements groups

Dimensions

Filter Diameter
67 mm / 2.64 in
Size | Diameter
86 mm / 3.39 in
75 mm / 2.95 in
Size | Length
77 mm / 3.03 in
119 mm / 4.69 in
Weight
580 g / 20.49 oz
525 g / 18.55 oz

Function

Angle Of View
110.6° Diagonal | 100.4° Horizontal | 77.3° Vertical
80.7° Diagonal | 70.4° Horizontal | 50.4° Vertical (wide) ~ 23.3° Diagonal | 19.5° Horizontal | 13.0° Vertical (tele)
Aperture
f/2.8 ~ f/22
f/2.8 ~ f/22
Autofocus
No
Yes
Crop Factor
1.5
1.5
Focal Length
10 mm
17 mm ~ 70 mm
Focal Length (35mm Equivalent)
15.0 mm
25.5 mm ~ 105.0 mm
Focus Type
Internal
Image Stabilization
No
Yes
Weather Resistance
Yes
Zoom Type
External zoom

Performance

Max Magnification
0.21x
Min Focus Distance
250 mm / 9.84 in
190 mm / 7.48 in

Production

Accessory
Lens Hood: Integrated hood (supplied)
Lens hood included
Debut
2013-12-06
2020-12-03
Model Name
B070

Reviews

Neofiliac score
40%
69%
Pros
  • One of the widest rectilinear lens for APS-C
  • Reasonable IQ
  • Bright f/2.8 aperture
  • Optically stabilized
  • Weather-sealed
  • Fast AF
  • Good image quality
Cons
  • Lacks front filter thread
  • External zoom without zoom lock

Price

Offers (incl. referral links)
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