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Pentax

Pentax smc DA 18-135mm f/3.5-5.6 ED AL [IF] DC WR

Pentax's weather-resistant 7.5x travel zoom for APS-C K bodies (27.5-207mm equivalent): a quiet in-lens DC autofocus motor with Quick-Shift manual override, drip-proof WR construction and an SP coating on the front element. 405g, 62mm filters, focuses to 40cm across the range; stabilisation comes from the camera body.

Starting from
£449 new
Check price at Clifton Cameras
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RetailerPrice
New
Clifton Cameras
Clifton Cameras
£449
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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.
Value & Depreciation
£600
Launch price
→
£449
Today
=
25%
Value drop
Over ~16 years, this lens has cost roughly £9/year to own (buy at launch price, sell today). That's one of the lower cost-per-year lenses in its class.
Core
Released
2010
Focal Length
18–135mm
Aperture
f/3.5-5.6
Compatible Mount
Pentax K-mount
Filter Size
62mm
Dimensions
73mm diameter × 76mm length
Weight
405g
Weather Sealed
Yes
Optics & Focus
AF Motor
DC motor
Optical IS
None (relies on body IS)
Aperture Blades
7
Magnification
0.24x
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
4.7
Street
4.8
Travel
7.1
Wedding & Events
6.0
Vlogging & Video
4.9
Filmmaking
3.1
Documentary
4.4
Sports & Action
5.7
Landscape
6.3
Wildlife
5.0
Casual
6.1
Food
4.2
Architecture
5.4
Astrophotography
3.6
Underwater
4.7
✅ Great For
✈️
Travel 7.1 Strong on focal length, portability and weather sealing.
⚠️ Not Ideal For
🎬
Filmmaking 3.1 Held back by video handling and focal length.
🌌
Astrophotography 3.6 Held back by maximum aperture and focal length.
🍽️
Food 4.2 Held back by close focusing and maximum aperture.
📝 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 18-135mm f/3.5-5.6 ED AL [IF] DC WR
New prices, last 30 days