Used Pentax S1a for Sale — From £40 | UsedLens.co.uk

£40.00 Low price

£149.20 High price

10 Listings

1 Retailers

1 New this week

2 Reduced

Great for: general street portrait landscape

Classic early Pentax M42 SLR from 1962, robust mechanical body with universal screw-mount compatibility.

The Pentax S1a is a 35mm film SLR for the M42 screw mount — an early Pentax SLR body from the pre-Spotmatic era. Provides through-the-lens (stop-down) metering. A collectible early Pentax M42 body. M42 mount.

35mm film. M42 screw mount. Stop-down TTL metering. Manual exposure. M42 mount.

The Pentax S1a is from Pentax's early manual-focus M42 SLR lineup — predating the Spotmatic series. Compatible with all M42 screw-mount lenses. A classic and collectible early Pentax.

On the used market the Pentax S1a is a collectible early Pentax M42 body. Condition checks: shutter, meter. M42 mount.

Avg £69, steady over 2 weeks

Price history ↓

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Used Pentax S1a price history

Tracking the used Pentax S1a price? Over the past two weeks, the average has held steady at around £69. Depending on shutter count and condition, expect to pay between £40 and £98 for a used body.

Average market price (line) and typical price range (shaded). Source: UsedLens daily price index, 11 Jun – 3 Jul 2026.