
Canon EF 75-300mm f/4-5.6 III
Score: 35/100
Panasonic LUMIX G Lens
Score: 60/100Rankings

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.

The Canon EF 75-300mm f/4-5.6 III USM is a budget-friendly telephoto zoom that offers a long reach in a lightweight plastic body. It delivers decent sharpness in the mid-range and quiet autofocus, but lacks stabilization and suffers from softness at the long end.
| Attribute | ![]() | ![]() |
|---|---|---|
| ↓ lower better | 75 mm | 25 mmbest |
300 mmbest | 25 mm | |
| ↓ lower better | 4 f | 1.7 fbest |
| ↓ lower better | 480 g | 222 gbest |
| ↓ lower better | 122 mm | 82 mmbest |
| ↓ lower better | 150 cm | 25 cmbest |
0.25 xbest | 0.14 x | |
12 monthsbest | 12 monthsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Mount & Compatibility(2) | ||
Mount Type | Canon EF | Micro Four Thirds |
Autofocus Motor Type | Micro USM | Stepper motor |
Optical(5) | ||
Focal Length (Min) (mm) | 75 mm | 25 mm |
Focal Length (Max) (mm) | 300 mm | 25 mm |
Maximum Aperture (f-number) (f) | 4.0 f | 1.7 f |
Minimum Focus Distance (cm) | 150 cm | 25 cm |
Maximum Magnification Ratio (x) | 0.25 x | 0.14 x |
Physical(3) | ||
Weight (g) | 480 g | 222 g |
Length (mm) | 122 mm | 82 mm |
Filter Thread Diameter (mm) | 58 mm | 46 mm |

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

Professional reviewers label the EF 75-300mm f/4-5.6 III as a solid budget consumer lens that excels in size, weight, and smooth zoom, delivering acceptable sharpness in the mid-range but note soft corners, distortion, and the absence of image stabilization as drawbacks.
Everyday users appreciate the low price, lightweight feel, and quiet autofocus, while complaining about softness at 300mm, lack of stabilization, and the cheap-feeling plastic construction.

“Great for beginners”

“Good value for the reach”

“Blurry at 300mm”




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.