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Pentax

Pentax HD D FA★ 50mm f/1.4 SDM AW

Pentax's flagship 50mm for the K-1 series: a modern, very sharp f/1.4 with a ring-type SDM motor and All Weather sealing. At 910g it is large for a standard lens — rendering over portability.

Starting from
£1179 new
Average price across retailers: ~£1239
Available at 3 retailers
Check price at Wex Photo Video
✓ Available at 3 retailers 🔒 No signup needed 📦 UK stock only
RetailerPrice
Wex Photo Video
Wex Photo Video
£1179
was £1200
On Sale
Check on Wex Photo Video →
Clifton Cameras
Clifton Cameras
£1299
Check on Clifton Cameras →
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
2018
Focal Length
50mm
Aperture
f/1.4
Compatible Mount
Pentax K-mount
Filter Size
72mm
Dimensions
80mm diameter × 106mm length
Weight
910g
Weather Sealed
Yes
Optics & Focus
AF Motor
SDM ultrasonic motor
Optical IS
None (relies on body IS if available)
Aperture Blades
9
Magnification
0.18x
Min. Focus Distance
0.4m

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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
8.1
Street
7.0
Travel
5.1
Wedding & Events
7.4
Filmmaking
5.5
Documentary
6.3
Landscape
6.5
Casual
5.8
Food
6.3
Architecture
6.3
Astrophotography
6.7
Underwater
6.0
✅ Great For
🧑
Portrait 8.1 Strong on optical quality, maximum aperture and focal length.
💍
Wedding & Events 7.4 Strong on optical quality, autofocus and maximum aperture.
🌆
Street 7.0 Strong on focal length, optical quality and maximum aperture.
⚠️ Not Ideal For
✈️
Travel 5.1 Held back by focal length and portability.
📝 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 →
Price History — HD D FA★ 50mm f/1.4 SDM AW