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Pentax

Pentax smc FA 50mm f/1.4

Pentax's 1991 full-frame FA 50 mm f/1.4 for K-mount: seven elements, screw-drive AF, an aperture ring and 45 cm close focus, at 220 g.

Starting from
£399 new
Used from £91 (eBay)
Available at 2 retailers
Check price at Wex Photo Video
✓ Available at 2 retailers 🔒 No signup needed 📦 UK stock only
RetailerPrice
New
eBay
eBay
Lowest Buy It Now · marketplace
£252
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Wex Photo Video
Wex Photo Video
£399
Check on Wex Photo Video →
Clifton Cameras
Clifton Cameras
£449
Check on Clifton Cameras →
Used
eBay
eBay used
Lowest Buy It Now · marketplace
£91
Search eBay →
MPB
MPB used
Inspected used stock · 12-month warranty
£104
Check on MPB →
Amazon
Amazon
Amazon
—
Check on Amazon →
Prices are synced live from UK retailers. Not every product will be stocked by every retailer; older models may only be available second hand.
Core
Released
1991
Focal Length
50mm
Aperture
f/1.4
Compatible Mount
Pentax K
Filter Size
49mm
Dimensions
65mm diameter × 37mm length
Weight
220g
Weather Sealed
No
Optics & Focus
AF Motor
Screw drive (body motor)
Optical IS
None (relies on body SR)
Aperture Blades
8
Magnification
0.15x
Min. Focus Distance
45cm

Select up to 2 cameras to compare against the smc FA 50mm f/1.4. It's always pinned as the baseline.

Select 1–3 cameras to compare

1 camera compatible with the Pentax K mount.

K-50
Pentax
K-50
Used from £69
GearScore™ — Suitability by Genre

Base score — computed from verified specs for an enthusiast shooting photo and video. Camera Match adjusts it for your skill level and priorities.

Portrait
6.6/10
Street
7.7/10
Travel
5.3/10
Wedding & Events
5.3/10
Filmmaking
4.5/10
Documentary
5.0/10
Landscape
4.8/10
Casual
6.3/10
Food
4.8/10
Architecture
4.5/10
Astrophotography
5.8/10
Underwater
4.4/10
✅ Great For
🌆
Street 7.7 Strong on portability, focal length and maximum aperture.
⚠️ Not Ideal For
🤿
Underwater 4.4 Held back by focal length and close focusing.
🏛️
Architecture 4.5 Held back by focal length and generation.
🎬
Filmmaking 4.5 Held back by video handling and optical stabilisation.
📝 How suitability scores are calculated GearScore™ genre scores are calculated from this camera's verified specifications — autofocus, sensor, weight, weather sealing and more — weighted by what matters for each type of photography. Where a spec sheet misses something (e.g. a manual-focus rangefinder for street), we apply a documented editorial adjustment. Scores are not based on customer reviews. See our full methodology →
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