
Panasonic LUMIX G Lens
Score: 60/100
Canon RF 50mm f/1.8
Score: 73/100Rankings

The Canon RF 50mm F1.8 STM is a pocket-sized, affordable standard prime delivering sharp central performance and a bright aperture for low-light work. While it lacks weather sealing and shows some corner softness and vignetting, its quiet STM motor and control ring make it ideal for beginners and vloggers.

The Panasonic LUMIX G 25mm f/1.7 ASPH is a compact, fast-aperture prime that delivers sharp images and quiet AF, making it a strong value for Micro Four Thirds shooters. Its lack of IS and weather sealing keep it from harsher environments, but its portability and price are hard to beat.
| Attribute | ![]() | ![]() |
|---|---|---|
| ↓ lower better | 25 mmbest | 50 mm |
25 mm | 50 mmbest | |
| ↓ lower better | 1.7 fbest | 1.8 f |
| ↓ lower better | 222 g | 159 gbest |
| ↓ lower better | 82 mm | 40.5 mmbest |
| ↓ lower better | 25 cmbest | 30 cm |
0.14 x | 0.25 xbest | |
12 monthsbest | 12 monthsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Mount & Compatibility(2) | ||
Mount Type | Micro Four Thirds | Canon RF |
Autofocus Motor Type | Stepper motor | STM |
Optical(6) | ||
Focal Length (Min) (mm) | 25 mm | 50 mm |
Focal Length (Max) (mm) | 25 mm | 50 mm |
Maximum Aperture (f-number) (f) | 1.7 f | 1.8 f |
Minimum Focus Distance (cm) | 25 cm | 30 cm |
Maximum Magnification Ratio (x) | 0.14 x | 0.25 x |
Coating Type | Nano Surface Coating | Super Spectra Coating |
Physical(3) | ||
Weight (g) | 222 g | 159 g |
Length (mm) | 82 mm | 40.5 mm |
Filter Thread Diameter (mm) | 46 mm | 43 mm |

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

Professional reviewers praise the Panasonic 25mm F1.7 as one of the best value-driven primes for Micro Four Thirds, highlighting its sharpness, compactness, fast aperture, and quiet stepping motor for video.
Everyday users echo the experts, lauding the lens as a perfect walk-around option with strong low-light capability, fast and silent AF, and impressive sharpness. Common complaints focus on flare, the absence of weather sealing, and occasional focus quirks on older bodies.

“Extremely lightweight (125 g) and compact (52 mm length) for travel and street photography”

“Fast f/1.7 aperture for low-light shooting and shallow depth of field”

“Quiet stepper-motor autofocus ideal for video and vlogging”




Professional reviewers agree the RF 50mm F1.8 STM fills a critical gap in Canon's mirrorless lineup, offering a bargain-priced, sharp, and compact standard prime, though it suffers from corner softness, vignetting, and modest bokeh.
Everyday users rate the lens highly, praising its sharpness, low-light capability, tiny size and quiet AF, while noting AF noise, soft corners at wide apertures, and a plasticky feel.