Looking for a compact 50mm prime with vintage character and solid optics? The SMC Pentax‑M 50mm f/2 delivers sharp images, a smooth manual focus, and easy adaptability for travel and daily shooting.
🔍 Quick Overview & Specs
- Lens: Pentax SMC‑M 50mm f/2 (Super Multi Coated)
- Mount: M42 screw mount; compatible via adapter
- Construction: 5 elements in 5 groups; 6-blade diaphragm
- Minimum Focus: ~0.45 m — excellent for everyday subjects
- Weight: ~180 g — compact and sturdy
- Filter Size: 52 mm
🛠️ Build Quality & Handling
The all-metal barrel feels solid and premium. The focus ring has a smooth, moderate throw ideal for manual use. Aperture clicks are tactile and reliable. While small, it’s durable enough for daily field use.
Despite its compact size, the lens is built like a tank—perfect for travel and street work.
📷 Optical Performance & Image Characteristics
The lens offers good sharpness from f/2 and excels further at f/4–8. Contrast remains strong, and the SMC coating keeps flare under control. Some corner softness persists wide open, improving upon stopping down.
On modern mirrorless systems, it renders crisp detail with pleasant mid-tone warmth. Though slight color fringing may appear in backlit scenarios, overall optical clarity is impressive for its size.
📸 Sample Photos
Captured with the lens on a Sony α7 IV, here are a few real-world shots:
👍 Pros & ⚠️ Cons
| ✅ Pros | ⚠️ Cons |
|---|---|
| Compact, lightweight metal build | Soft corners at wide apertures |
| Beautiful SMC coating, low flare | Max aperture f/2 is modest |
| Close focus ~0.45 m | No aperture priority switch (manual only) |
| Excellent VFM (US$50–80 on eBay) | Requires adapter for mirrorless |
🎯 Who Should Buy This?
If you want a portable 50mm prime that fits easily in your bag and delivers reliable image quality, this Pentax lens is ideal. Great for:
- Travel & street photography
- Film and digital mirrorless users seeking vintage flair
- Budget-savvy photographers wanting quality glass
🔧 Tips for Best Use
- Use an adapter with secure mount and minimal play
- Stop down to f/4 or f/5.6 for edge-to-edge sharpness
- Carry a lens hood to reduce flare in bright conditions
- Clean optics before shooting to maximize contrast
🛍️ Available on eBay
You can purchase this exact lens on our eBay store. Don’t miss this compact classic!
[On Sale] ‐ [MINT] SMC PENTAX-M 50mm F2 MF Lens K-Mount From JPN #L012
🔚 Final Thoughts
The SMC Pentax‑M 50mm f/2 brings together compactness, solid build, and vintage optical charm. Though not the fastest, its overall performance and portability make it a practical choice. If you’re looking for a dependable everyday prime with character, this lens is a compelling pick.
