Site Title

Compare Laowa 20mm F4 Zero-D Shift vs Pentax-D FA 21mm F2.4ED vs Pentax-D FA* 85mm F1.4

Reviews

Neo score
75%
76%
68%
Pros
  • Comes with physical aperture ring
  • Shift functionality
  • 14-bladed aperture
  • Weather-sealed
  • Great image quality
  • 8-bladed aperture for sunstars
  • Bright maximum aperture
  • Weather-sealed
  • Premium design and construction
Cons
  • Large diameter
  • Large diameter
  • On the heavy side

Price

MSRP
1400 USD
Offers (incl. referral links)

Construction

Aperture Blades
14 blades
8 blades, Rounded diaphragm
9 blades
Colors
Black, Silver
Black
Form Factor
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Short Telephoto Prime Lens
Image Size
Medium Format (44x33)
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Distance scale, DoF scale
Distance scale
Lens Mount
Canon EF-mount, Canon RF-mount, Fujifilm G-mount, Leica L-mount, Nikon F-mount, Nikon Z-mount, Pentax K-mount, Sony E-mount
Pentax K-mount
Pentax K-mount
Material
Aluminum
Motor
Ring-type ultrasonic
Optical Formula | Elements
16 elements
11 elements
12 elements
Optical Formula | Groups
11 groups
8 groups
10 groups
Optical Formula | Special Glass
2 aspherical elements, 3 ED elements groups
4 ED elements, 1 Super ED element groups
1 aspherical + 3 Super ED elements, HD coating groups

Dimensions

Filter Diameter
82 mm / 3.23 in
67 mm / 2.64 in
82 mm / 3.23 in
Size | Diameter
95 mm / 3.74 in
74 mm / 2.91 in
95 mm / 3.74 in
Size | Length
91 mm / 3.58 in
89 mm / 3.50 in
124 mm / 4.88 in
Weight
747 g / 26.40 oz
416 g / 14.70 oz
1255 g / 44.35 oz

Function

Angle Of View
107.8° Diagonal | 97.4° Horizontal | 74.4° Vertical
91.7° Diagonal | 81.2° Horizontal | 59.5° Vertical
28.6° Diagonal | 23.9° Horizontal | 16.1° Vertical
Aperture
f/4 ~ f/22
f/2.4–22 ~ f/2.4–22
f/1.4 ~ f/16
Autofocus
No
Yes
Yes
Crop Factor
0.8
Focal Length
20 mm
21 mm
85 mm
Focal Length (35mm Equivalent)
15.8 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
Yes
Yes

Performance

Max Magnification
0.17x
0.26x
0.12x
Min Focus Distance
250 mm / 9.84 in
180 mm / 7.09 in
850 mm / 33.46 in

Production

Accessory
Lens hood included
Lens hood included
Lens hood included
Debut
2022-03-28
2021-10-21
2020-05-27
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