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Compare Laowa 100mm f/2.8 2X Ultra Macro vs Laowa 17mm F4 Zero-D GFX vs Pentax-FA645 35mm F3.5

Construction

Aperture Blades
13 blades, Nikon and Pentax mounts have 7 aperture blades.
7 blades
9 blades, Rounded aperture
Form Factor
Short Telephoto Prime Lens
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Image Size
Full-Frame
Medium Format (44x33)
Medium Format (645)
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale
Lens Mount
Canon EF-mount, Canon RF-mount, Leica L-mount, Nikon F-mount, Nikon Z-mount, Pentax K-mount, Sony E-mount
Fujifilm G-mount
Pentax 645 KAF2 bayonet
Optical Formula | Elements
12 elements
21 elements
10 elements
Optical Formula | Groups
10 groups
14 groups
7 groups
Optical Formula | Special Glass
2 aspherical + 3 ED elements groups
HRI and hybrid aspherical elements, HD and SP coatings groups

Dimensions

Filter Diameter
67 mm / 2.64 in
86 mm / 3.39 in
82 mm / 3.23 in
Size | Diameter
72 mm / 2.83 in
77 mm / 3.03 in
88 mm / 3.46 in
Size | Length
125 mm / 4.92 in
125 mm / 4.92 in
90 mm / 3.54 in
Weight
638 g / 22.54 oz
829 g / 29.29 oz
570 g / 20.14 oz

Function

Angle Of View
24.4° Diagonal | 20.4° Horizontal | 13.7° Vertical
116.4° Diagonal | 106.5° Horizontal | 83.6° Vertical
89.9° Diagonal | 79.4° Horizontal | 57.9° Vertical
Aperture
f/2.8 ~ f/22
f/4 ~ f/22
f/3.5 ~ f/32
Autofocus
No
No
Yes
Crop Factor
0.8
0.6
Focal Length
100 mm
17 mm
35 mm
Focal Length (35mm Equivalent)
13.4 mm
21.7 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
No
No

Performance

Max Magnification
2x
0.28x
0.25x
Min Focus Distance
250 mm / 9.84 in
200 mm / 7.87 in
300 mm / 11.81 in

Production

Accessory
Lens Hood: PH-RBE82 (supplied)
Debut
2018-04-20
2018-04-20
2015-11-11
Made In
China
China

Reviews

Neofiliac score
59%
40%
68%
Pros
  • High 2x maximum magnification
  • Apochromatic design
  • Widest rectilinear lens for G-mount medium format
  • Low distortion
  • Good optical performance
  • 0.25x reproduction ratio
  • Rather compact for what it is
  • Comes with physical aperture ring
Cons
  • Lacks weather sealing
  • Quite long, though not expectedly so
  • On the heavy side
  • Lacks weather sealing
  • Lacks weather sealing

Price

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