What is the cheapest used Pentax SMC AL 28-70mm f/4 in the UK?

The cheapest used Pentax SMC AL 28-70mm f/4 currently listed is £21.99 at eBay, based on 11 listings compared across 3 UK retailers.

How many used Pentax SMC AL 28-70mm f/4 are for sale in the UK?

There are currently 11 used Pentax SMC AL 28-70mm f/4 listings available across 3 UK retailers on UsedLens, updated daily.

Used Pentax SMC AL 28-70mm f/4 for Sale — From £22

£21.99 Low price

£144.25 High price

11 Listings

3 Retailers

1 New this week

3 Reduced

Great for: general travel landscape

Quality Pentax constant f/4 standard zoom with SMC coating and aspherical element, sharp 28-70mm at budget pricing.

The Pentax SMC AL 28-70mm f/4 is a constant-aperture standard zoom with SMC (Super Multi Coating) and an aspherical lens element for the Pentax K-mount system. The constant f/4 aperture provides predictable exposure and consistent depth of field across the zoom range — a practical advantage over variable-aperture alternatives.

The AL designation indicates an aspherical lens element that improves image quality by reducing spherical aberration and distortion. Combined with Pentax's renowned SMC coating, the lens delivers good contrast and colour accuracy across the 28-70mm range. The constant f/4 keeps the lens compact while maintaining consistent performance.

Build quality is solid Pentax standard with quality materials and smooth mechanical operation. The lens balances well on Pentax K-mount bodies, and the constant aperture design means no exposure shift when zooming — important for manual exposure shooting and consistent flash photography.

The SMC AL 28-70mm f/4 offers excellent value on the used market as a quality constant-aperture standard zoom for Pentax K-mount. The aspherical element and SMC coating provide optical quality above typical budget standard zooms, and the 28mm wide start gives more coverage than 35mm alternatives.