What is the cheapest used Pentax K-3 Mark III in the UK?

The cheapest used Pentax K-3 Mark III currently listed is £107.64 at eBay, based on 3 listings compared across 1 UK retailers.

How many used Pentax K-3 Mark III are for sale in the UK?

There are currently 3 used Pentax K-3 Mark III listings available across 1 UK retailers on UsedLens, updated daily.

What sensor format does the Pentax K-3 Mark III use?

The Pentax K-3 Mark III features a APS-C sensor.

Is the used Pentax K-3 Mark III going up or down in price?

Over the past two weeks the average used price has risen 7.5%, from £116 to around £125, based on UsedLens daily price tracking across UK retailers.

Used Pentax K-3 Mark III (2021) for Sale — From £108

£107.64 Low price

£1299.00 High price

3 Listings

1 Retailers

Great for: general landscape wildlife portrait street

Pentax's flagship APS-C DSLR — 25.7MP with new AF module, weather sealing, and optical viewfinder.

The Pentax K-3 Mark III was released in 2021 as Pentax's APS-C DSLR flagship for Pentax K-mount, featuring a 25.7MP BSI-CMOS sensor, 4K/30fps video, and 5-axis IBIS rated 5.5 stops. D-LI90 battery (USB-C chargeable). At 820g with battery and card.

25.7MP APS-C BSI-CMOS. 4K UHD/30fps; 1080p/60fps. 5-axis sensor-shift IBIS rated 5.5 stops (CIPA). D-LI90 rechargeable Li-ion (USB-C chargeable). 820g with battery and card (735g body only). Weather-sealed. Pentax K mount (KAF4).

The K-3 Mark III is the current Pentax APS-C flagship DSLR: in a market that has broadly transitioned to mirrorless, Ricoh Imaging continues the DSLR form for Pentax K-mount users. The 5.5-stop IBIS provides competitive stabilisation, and the weather sealing supports outdoor use in adverse conditions. The K-3 Mark III's optical viewfinder (DSLR, not EVF) is the primary differentiator for users preferring optical viewing.

On the used market the Pentax K-3 Mark III is available at Pentax APS-C DSLR flagship pricing. Condition checks: D-LI90 battery health, IBIS operation, weather sealing, shutter actuations. Compatible with all Pentax K-mount lenses.

Pentax K-3 generations

This page covers the Pentax K-3 Mark III (2021). Not to be confused with the other models in this line:

Avg £125, up 7.5% over 2 weeks

Price history ↓

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ProductPriceRetailer

Pentax WG-III 16MP underwater waterproof digital camera - WG3 eBay

£107.64

eBay

RICOH PENTAX WG-3 WG-III Waterproof Digital Camera, Full Working Order eBay

£125.00

eBay

Pentax K-3 Mark III DSLR Camera (Body Only, Black) 25.7MP APS-C, 55300 Shutter eBay

£1299.00

eBay

Used Pentax K-3 Mark III price history

Tracking the used Pentax K-3 Mark III price? Over the past two weeks, the average has risen 7.5%, from £116 to around £125. Depending on shutter count and condition, expect to pay between £116 and £712 for a used body.

Average market price (line) and typical price range (shaded). Source: UsedLens daily price index, 5 Jul – 26 Jul 2026.