
Canon EF 50mm f.8 STM
Score: 77/100
Panasonic LUMIX G 25mm
Score: 79/100Rankings

The Panasonic LUMIX G 25mm f/1.7 ASPH is an ultra-compact, fast-aperture prime that delivers sharp images and quiet autofocus. It lacks weather sealing, image stabilization, and its corner performance drops at the widest aperture. Ideal for street, portrait and low-light shooters who prioritize size and speed over ruggedness.

The Canon EF 50mm f/1.8 STM is a compact, fast prime lens delivering excellent low-light performance and quiet autofocus. Its trade-offs include softness at the widest aperture, a plasticky body, and no weather sealing. Ideal for beginners, portrait shooters, and video creators seeking a lightweight, affordable fast lens.
| Attribute | ![]() | ![]() |
|---|---|---|
50 mmbest | 25 mm | |
1.8best | 1.7 | |
| ↓ lower better | 0.35 m | 0.25 mbest |
| ↓ lower better | 159 g | 125 gbest |
7best | 7best | |
0.2best | — | |
6 | 8best | |
5 | 7best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Compatibility(1) | ||
Lens Mount | Canon EF | Micro Four Thirds |
Features(1) | ||
Autofocus Type | STM | Stepping motor |
Optics(6) | ||
Focal Length (mm) | 50 mm | 25 mm |
Maximum Aperture (f‑stop) | 1.8 | 1.7 |
Minimum Focus Distance (m) | 0.35 m | 0.25 m |
Number of Optical Elements | 6 | 8 |
Number of Optical Groups | 5 | 7 |
Coating | Super Spectra | None |
Build & Design(4) | ||
Filter Thread Size (mm) | 49 mm | 46 mm |
Weight (g) | 159 g | 125 g |
Length (mm) | 39.3 mm | 52 mm |
Maximum Diameter (mm) | 69.2 mm | 60.8 mm |

Products in the top-left offer the best value (high score, low price).

Professional reviewers describe the EF 50mm f/1.8 STM as a surprisingly capable "nifty fifty" that delivers excellent color balance, sharpness when stopped down, and a quiet STM motor that makes it video-friendly. They note the upgraded metal mount and Super Spectra coatings improve durability and reduce flare, though they acknowledge persistent softness at f/1.8 and the absence of weather sealing.
Everyday users love the lens for its pocketable weight, sharp portrait and low-light results, and value as an entry-level prime. Common complaints focus on softness and vignetting at the widest aperture, the plasticky feel of the body, lack of weather sealing, and occasional AF noise in very quiet video recordings.

“so light... not even perceive the extra weight”



Professional reviewers praise the lens for its delightfully lightweight and well-built feel, fast f/1.7 aperture, and quiet stepping-motor autofocus that suits both stills and video. They also note the high-quality aspherical/UHR optics that keep aberrations low. However, they criticize the lack of weather sealing, image stabilization, and the soft corner performance at the widest aperture, as well as the absence of a mechanical focus coupling.
Everyday users love how portable and light the lens feels, often describing it as "pancake-like" and "so light… not even perceive the extra weight." They appreciate the fast aperture for indoor and low-light shooting and the quiet AF for video. Common complaints focus on its fragility without weather sealing, occasional flare, and the inability to focus closely for macro work.