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Pentax K-3 Mark III + 16-85mm Lens Bundle
Pentax K-3 Mark III + 16-85mm Lens Bundle
Pentax K-3 Mark III + 16-85mm Lens Bundle
Pentax K-3 Mark III + 16-85mm Lens Bundle
Pentax K-3 Mark III + 16-85mm Lens Bundle
Pentax K-3 Mark III + 16-85mm Lens Bundle
Pentax

Pentax K-3 Mark III + 16-85mm Lens Bundle

4K

The Pentax K-3 Mark III paired with the 16-85mm WR zoom delivers 25.7MP back-illuminated resolution across a 24.5–130mm equivalent range with weather resistance built in.

$249.00*$2,499.00Save 90%
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Pentax K-3 Mark III is a 25.73-megapixel APS-C DSLR built around a back-illuminated CMOS sensor — a sensor architecture that delivers improved low-light efficiency and high-ISO cleanliness by relocating the pixel wiring behind the photodiode layer. Paired with the DA 16-85mm f/3.5-5.6 ED DC WR, this bundle covers a 5.3x zoom range from 24.5mm equivalent wide-angle to 130mm equivalent medium telephoto, with weather resistance across both body and lens. The SAFOX 13 AF system deploys 101 sensors including 25 cross-type units, and the 100% coverage optical viewfinder gives a direct optical view of the scene — not an electronic representation — which defines the K-3 III's character as a traditional DSLR in an era of mirrorless market dominance.

This bundle is designed for the stills-focused photographer who values build quality, weather sealing, and optical viewfinder handling over video capability and ecosystem breadth. The K-3 Mark III rewards photographers who work in challenging environmental conditions — rain-soaked landscapes, dusty festivals, cold-weather nature — where the joint WR sealing of body and lens represents a genuine operational advantage. The DA 16-85mm earns its place as the everyday zoom for this system, covering the versatile mid-range with ED optical elements and three high-grade aspherical elements for aberration control. For shooters drawn to Pentax's legacy, build philosophy, and the deep used K-mount glass market, this bundle delivers a coherent, capable system that holds its own in demanding still photography without pretending to be something it isn't.

Key Features

Bundle Includes: Pentax K-3 Mark III Camera Body (Black) Pentax DA 16-85mm f3.5-5.6 ED DC WR Camera Lens

Auto Focus System: The SAFOX 13 phase-matching AF sensor module handles high-precision autofocus operations. This module uses 101 focus sensors, 25 of which are cross-type sensors positioned in the middle

4K Movie Recording: The Pentax K-3 Mark III captures 4K-resolution movie clips at 30p/24p frame rate or Full HD movie clips at 60p/30p/24p frame rate in the H-264 recording format

Pentax DA 16-85mm f3.5-5.6 ED DC WR Camera Lens: This lens provides a high zoom ratio of approximately 5.3 times to cover focal lengths from 16mm ultra-wide-angle to 85mm medium-telephoto for lengths equivalent to 24.5mm to 130mm (in the 35mm format)

Pentax K-3 Mark III Camera Body: Utilizes a back-illuminated CMOS image sensor delivering approximately 25.73 effective megapixels

Specifications

Camera Body Model
Pentax K-3 Mark III (Black)
Lens Model
Pentax DA 16-85mm f3.5-5.6 ED DC WR Camera Lens
Image Sensor
Back-illuminated CMOS
Effective Megapixels
Approximately 25.73
Autofocus System
SAFOX 13 phase-matching AF sensor module
Autofocus Sensors
101 focus sensors, 25 cross-type in middle
4K Movie Recording Frame Rates
30p/24p
Full HD Movie Recording Frame Rates
60p/30p/24p
Movie Recording Format
H-264
Lens Zoom Ratio
Approximately 5.3 times
Lens Focal Length (Actual)
16mm ultra-wide-angle to 85mm medium-telephoto
Lens Focal Length (35mm Equivalent)
24.5mm to 130mm

Pros & Cons

👍 Pros

  • 25.73MP back-illuminated CMOS sensor delivers cleaner high-ISO output and more recoverable shadow detail than front-illuminated APS-C sensors at equivalent resolution.
  • Combined weather sealing between the K-3 Mark III body and the DA 16-85mm WR lens creates a genuinely field-ready system for shooting in rain, dust, and cold.
  • The 16-85mm zoom covers a 5.3x range equivalent to 24.5–130mm in full frame, making it a versatile single-lens solution for travel, documentary, and event photography.
  • SAFOX 13 with 101 sensors including 25 cross-type units provides reliable subject acquisition across a broad range of contrast conditions.
  • Pentax's optical viewfinder with 100% coverage delivers a real-time, true-optical view that many mirrorless EVF users find preferable for fast-paced or battery-critical shooting.

👎 Cons

  • 4K video is limited to H.264 encoding at 30p/24p with no log profile — the K-3 III is not a competitive video tool for productions that require flat color science or 60fps 4K.
  • K-mount third-party lens development is limited compared to Canon RF, Nikon Z, and Sony E ecosystems, which constrains future glass expansion for shooters who eventually need specialty focal lengths.
  • The DA 16-85mm f/3.5-5.6 has a variable maximum aperture — at 85mm the maximum aperture is f/5.6, which limits available-light performance at the telephoto end of the zoom range.
  • The K-3 Mark III does not offer in-body subject tracking or eye-detection AF, limiting its competitiveness in wildlife and sports scenarios against current mirrorless AF systems.
  • APS-C optical viewfinder coverage comes with a smaller, dimmer view compared to full-frame OVFs or high-resolution EVFs from current mirrorless alternatives.

Frequently Asked Questions

SAFOX 13 uses 101 focus sensors, 25 of which are cross-type sensors in the central zone. Cross-type sensors detect contrast in two axes simultaneously, providing more reliable focus on low-contrast subjects than single-axis sensors. At 101 total points it competes well with APS-C AF systems in this tier, though it falls short of the dense sensor grids in current Sony and Fuji mirrorless systems. For sport and wildlife this delivers tracking performance; for video AF it is less competitive than mirrorless phase-detection implementations.
Yes — the DA 16-85mm carries the WR (Weather Resistant) designation, matching the K-3 Mark III body's own weather sealing. Together they form a sealed system with Pentax's claimed 100 weather seals on the body. Pentax's weather sealing reputation in the K-series is well-established — this combination is genuinely capable in rain, dust, and cold temperatures where non-sealed systems require shelter.
The K-3 Mark III records 4K at 30p or 24p, and Full HD at 60p/30p/24p, using H.264 encoding. It is a capable video option for hybrid shooters who primarily shoot stills but want usable 4K clips. However, it lacks in-body log profiles, limited video AF capability, and does not match the video feature sets of dedicated hybrid mirrorless cameras — it is a stills-first camera with video capability, not a video-first tool.
Pentax K-mount has a deep catalog spanning decades of KAF, KAF2, and DA series lenses, as well as a large used market. The DA 16-85mm in this bundle is a relatively modern WR zoom well-suited to the K-3 III sensor. For specialty glass, Pentax offers DA Limited primes with excellent optical character. However, the K-mount ecosystem is smaller than Canon EF, Nikon F, or Sony E in terms of current third-party lens development, which is a real consideration for shooters who frequently expand their glass.
Back-illuminated (BSI) CMOS sensors relocate the wiring layer behind the photodiodes rather than in front of them, increasing the light-gathering efficiency of each pixel. At 25.73MP on an APS-C sensor, this translates to better low-light performance and cleaner high-ISO output compared to front-illuminated sensors of similar resolution — you'll see more recoverable shadow detail in difficult exposure situations.

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