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Pentax

Pentax smc DA★ 55mm f/1.4 SDM

A classic APS-C portrait prime (84mm equivalent) from the Star range, with SDM focusing and weather sealing. 375g; renders softly wide open and is prized for bokeh.

Starting from
£799 new
Available at 2 retailers
Check price at Clifton Cameras
✓ Available at 2 retailers 🔒 No signup needed 📦 UK stock only
RetailerPrice
Clifton Cameras
Clifton Cameras
£799
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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
2008
Focal Length
55mm
Aperture
f/1.4
Compatible Mount
Pentax K-mount
Filter Size
58mm
Dimensions
70.5mm diameter × 66mm length
Weight
375g
Weather Sealed
Yes
Optics & Focus
AF Motor
SDM ultrasonic motor
Optical IS
None (relies on body IS if available)
Aperture Blades
9
Magnification
0.173x
Min. Focus Distance
0.45m

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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
8.3
Street
6.1
Travel
5.9
Wedding & Events
6.7
Filmmaking
5.1
Documentary
5.4
Landscape
6.8
Casual
5.3
Food
5.8
Architecture
6.3
Underwater
5.7
✅ Great For
🧑
Portrait 8.3 Strong on optical quality, focal length and maximum aperture.
⚠️ Not Ideal For
🎬
Filmmaking 5.1 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 →
Price History — smc DA★ 55mm f/1.4 SDM