Compare Panasonic DG 25-50mm F1.7 vs Leica Thambar-M 90mm F2.2 vs Leica Summilux-M 90mm F1.5
Construction
Aperture Blades
9 circular aperture diaphragms
20 blades
11 blades
Colors
Black
Black
Form Factor
Short Telephoto Prime Lens
Short Telephoto Prime Lens
Image Size
Full-frame
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale, DoF scale
Lens Mount
Micro Four Thirds mount
Leica M-mount
Leica M-mount
Material
Metal
Magnesium alloy
Optical Formula | Elements
16 elements
4 elements
8 elements
Optical Formula | Groups
11 groups
3 groups
6 groups
Optical Formula | Special Glass
1 aspherical lens, 3 ED lenses, 1 UHR lens groups
1 aspherical element groups
Dimensions
Filter Diameter
77 mm
49 mm / 1.93 in
67 mm / 2.64 in
Size | Diameter
87.6 mm
57 mm / 2.24 in
74 mm / 2.91 in
Size | Length
127.6 mm
90 mm / 3.54 in
91 mm / 3.58 in
Weight
654 g
500 g / 17.67 oz
1010 g / 35.69 oz
Function
Angle Of View
47° ~ 24°
27.1° Diagonal | 22.6° Horizontal | 15.2° Vertical
27.1° Diagonal | 22.6° Horizontal | 15.2° Vertical
Aperture
F/1.7 ~ f/16
f/2.2 ~ f/25
f/1.5 ~ f/16
Autofocus
No
No
Focal Length
0.28 m / 0.92 ft @ 25mm, 0.31 m / 1.02 ft @ 50mm
90 mm
90 mm
Focal Length (35mm Equivalent)
50-100 mm
Focus Type
Internal
Image Stabilization
No
No
Operating Temperature
-10°C ~ 40°C
Weather Resistance
Dust, moisture
No
Zoom Type
External zoom
Performance
Max Magnification
0.21x @ 50mm
0.11x
Min Focus Distance
0.37 m
1000 mm / 39.37 in
1000 mm / 39.37 in
Production
Accessory
Lens hood included
Lens hood included
Debut
2021-07-08
2017-10-17
2019-12-12
Made In
Germany
Germany
Model Name
H-X2550
Reviews
Neofiliac score
78%
86%
Pros
- Gorgeous construction
- A joy to use
- Bright maximum aperture
- Beautiful Leica construction
- Great image quality
Cons
- Lacks weather sealing
- Classic rendering may not be for everyone
- On the heavy side
- Extremely expensive
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