Compare Samyang 135mm F2.0 ED UMC vs Panasonic DG 25-50mm F1.7 vs Panasonic S Pro 24-70mm F2.8
Construction
Aperture Blades
9 blades
9 circular aperture diaphragms
11 blades
Colors
Black
Form Factor
Medium Telephoto Prime Lens
Standard Zoom Lens
Image Size
Full-Frame
Full-frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring
Lens Mount
Canon EF-mount, Canon EF-M-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
Micro Four Thirds mount
Leica L-mount
Material
Magnesium alloy
Motor
Linear Motor
Optical Formula | Elements
11 elements
16 elements
18 elements
Optical Formula | Groups
7 groups
11 groups
16 groups
Optical Formula | Special Glass
1 ED element, Ultra Multi Coating groups
1 aspherical lens, 3 ED lenses, 1 UHR lens groups
3 aspherical + 1 UHR + 4 ED elements groups
Dimensions
Filter Diameter
77 mm / 3.03 in
77 mm
82 mm / 3.23 in
Size | Diameter
82 mm / 3.23 in
87.6 mm
91 mm / 3.58 in
Size | Length
122 mm / 4.80 in
127.6 mm
140 mm / 5.51 in
Weight
830 g / 29.33 oz
654 g
935 g / 33.04 oz
Function
Angle Of View
18.2° Diagonal | 15.2° Horizontal | 10.2° Vertical
47° ~ 24°
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical (wide) ~ 34.4° Diagonal | 28.8° Horizontal | 19.5° Vertical (tele)
Aperture
f/2 ~ f/22
F/1.7 ~ f/16
f/2.8 ~ f/22
Autofocus
No
Yes
Focal Length
135 mm
0.28 m / 0.92 ft @ 25mm, 0.31 m / 1.02 ft @ 50mm
24 mm ~ 70 mm
Focal Length (35mm Equivalent)
50-100 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Operating Temperature
-10°C ~ 40°C
Weather Resistance
No
Dust, moisture
Yes
Zoom Type
External zoom
External zoom
Performance
Max Magnification
0.21x @ 50mm
0.25x
Min Focus Distance
800 mm / 31.50 in
0.37 m
370 mm / 14.57 in
Production
Accessory
Lens hood included
Lens hood included
Debut
2015-01-12
2021-07-08
2019-08-27
Model Name
H-X2550
S-E2470
Reviews
Neofiliac score
50%
41%
Pros
- Smooth rendering
- Good resolution
- Superb image quality
- Weather-sealed
- Comes with physical aperture ring
- Solidly built
Cons
- On the heavy side
- Lacks weather sealing
- Hard to MF at this focal length
- Very large and heavy
- External zoom without zoom lock
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.