Compare Samyang 20mm F1.8 ED AS UMC vs Pentax 02 Standard Zoom vs Pentax 07 Mount Shield Lens
Construction
Aperture Blades
7 blades
5 blades, 5-bladed lens shutter/aperture mechanism
Form Factor
Ultra Wide-Angle Prime Lens
Standard Zoom Lens
Normal Prime Lens
Image Size
Full-Frame
1/1.7"
1/1.7"
Lens Barrel
Physical aperture ring, Distance scale
Lens Mount
Canon EF-mount, Canon EF-M-mount, Fujifilm X-mount, Micro Four Thirds-mount, Nikon F-mount, Pentax K-mount, Samsung NX-mount, Sony A-mount, Sony E-mount
Pentax Q-mount
Pentax Q-mount
Material
Metal mount
Motor
Micromotor
Optical Formula | Elements
13 elements
8 elements
1 elements
Optical Formula | Groups
12 groups
7 groups
1 groups
Optical Formula | Special Glass
Two aspherical + 3 ED elements, Ultra Multi Coating groups
4 extra-low-dispersion and low-refractive aspherical elements, SP Coating groups
Dimensions
Filter Diameter
77 mm / 3.03 in
40.5 mm / 1.59 in
Size | Diameter
83 mm / 3.27 in
49 mm / 1.93 in
41 mm / 1.61 in
Size | Length
88 mm / 3.46 in
48 mm / 1.89 in
7 mm / 0.28 in
Weight
497 g / 17.56 oz
96 g / 3.39 oz
8 g / 0.28 oz
Function
Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
86.5° Diagonal | 76.1° Horizontal | 55.1° Vertical (wide) ~ 34.8° Diagonal | 29.2° Horizontal | 19.7° Vertical (tele)
44.5° Diagonal | 37.6° Horizontal | 25.6° Vertical
Aperture
f/1.8 ~ f/22
f/2.8–4.5 ~ f/8
f/9
Autofocus
No
Yes
No
Crop Factor
4.6
4.6
Focal Length
20 mm
5 mm ~ 15 mm
11.5 mm
Focal Length (35mm Equivalent)
23.0 mm ~ 69.0 mm
52.9 mm
Focus Type
Internal
Image Stabilization
No
No
Weather Resistance
No
Performance
Max Magnification
0.06x
Min Focus Distance
200 mm / 7.87 in
300 mm / 11.81 in
300 mm / 11.81 in
Production
Accessory
Lens hood included
Lens Hood: PH-SBA (sold separately)
Debut
2016-08-08
2011-06-23
2013-06-12
Reviews
Neofiliac score
59%
50%
40%
Pros
- Rather affordable
- Extremely light and compact
- Has a metal mount
- Has built-in ND filter
- Interesting "body cap" form factor
Cons
- Lacks weather sealing
- Not the highest grade of build
- Lens hood not included
- Not the best in IQ
- Limited f/9 aperture
- Image quality was not on the mind of its engineers
Remove
Remove
Remove
Add up to 4 products to the comparison using the search bar above
Information on this page is provided on an as-is basis. No warranty on accuracy is implied. This page may contain affiliate links to third-party merchants such as Amazon and eBay. If you make a purchase using the supplied link, we may receive a commission. Neofiliac places the utmost respect for your privacy. We use no cookie whatsoever beyond that needed for the proper functioning of the website.