Compare Samyang 8mm F2.8 UMC Fisheye II vs 7Artisans 25mm F1.8 vs Samyang 21mm F1.4 ED AS UMC CS
Construction
Aperture Blades
6 blades
7 blades
9 blades, Circular blades
Colors
Silver, black
Black
Black
Form Factor
Ultra Wide-Angle Prime Lens
Normal Prime Lens
Wide-Angle Prime Lens
Image Size
APS-C
APS-C
APS-C
Lens Barrel
Physical aperture ring, Distance scale
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale, DoF scale
Lens Mount
Canon EF-M-mount, Fujifilm X-mount, Samsung NX-mount, Sony E-mount
Canon EF-M-mount, Fujifilm X-mount, Micro Four Thirds-mount, Sony E-mount
Canon EF-M-mount, Fujifilm X-mount, Micro Four Thirds-mount, Sony E-mount
Material
Aluminum
Optical Formula | Elements
11 elements
7 elements
8 elements
Optical Formula | Groups
8 groups
5 groups
7 groups
Optical Formula | Special Glass
2 aspherical + 3 ED, Ultra Multi Coating groups
3 aspherical and 2 ED elements + Ultra Multi Coating groups
Dimensions
Filter Diameter
46 mm / 1.81 in
58 mm / 2.28 in
Size | Diameter
60 mm / 2.36 in
51 mm / 2.01 in
64 mm / 2.52 in
Size | Length
65 mm / 2.56 in
32 mm / 1.26 in
68 mm / 2.68 in
Weight
265 g / 9.36 oz
143 g / 5.05 oz
275 g / 9.72 oz
Function
Angle Of View
180° Diagonal (fisheye)
60.0° Diagonal | 51.3° Horizontal | 35.5° Vertical
69.0° Diagonal | 59.5° Horizontal | 41.7° Vertical
Aperture
f/2.8 ~ f/22
f/1.8 ~ f/22
f/1.4 ~ f/22
Autofocus
No
No
No
Crop Factor
1.5
1.5
1.5
Focal Length
8 mm
25 mm
21 mm
Focal Length (35mm Equivalent)
12.0 mm
37.5 mm
31.5 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
No
No
Performance
Min Focus Distance
300 mm / 11.81 in
180 mm / 7.09 in
280 mm / 11.02 in
Production
Accessory
Lens hood included
Debut
2014-03-21
2017-06-28
2015-09-21
Reviews
Neofiliac score
31%
59%
50%
Pros
- 180° FOV
- Reasonably well built
- Short barrel
- Light in the hand
- Appears well-built
- Bright maximum aperture
- Very sharp
- Good color rendition
Cons
- Lacks front filter thread
- Lacks weather sealing
- Lacks weather sealing
- Not the strongest in optical performance
- Lacks weather sealing
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.