Tamron

Tamron AF69P-700 14mm f/2.8 Pentax Lens

5.0 (1 reviews)
f/2.8

Capture sweeping ultra-wide landscapes and interiors with Tamron's fast 14mm f/2.8 aspherical prime for Pentax SLRs.

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Overview

The Tamron SP AF 14mm f/2.8 Aspherical (IF) is a specialty ultra-wide prime designed for photographers who need the widest possible field of view from a rectilinear lens. Mounted on a Pentax SLR, it opens up dramatic perspectives for landscape, architectural, interior, and astrophotography work. The fast f/2.8 aperture lets in ample light for handheld shooting in dim environments and produces a pleasingly shallow depth of field when focused at close distances, a rare trait at this focal length.

Tamron's use of two hybrid aspherical lens elements addresses the optical challenges inherent in ultra-wide designs, reducing corner light fall-off and minimizing distortion so that image quality remains consistent from center to edge. The Internal Focusing system keeps the physical length of the lens unchanged during focus and prevents the front element from rotating, which is particularly helpful when using rear gel filters or when shooting from tight spaces. The push/pull AF/MF mechanism on the focus ring provides a tactile, glove-friendly way to switch between autofocus and manual focus without hunting for a small switch, making it a practical tool for working photographers who need speed and reliability in the field.

Key Features

Ultra wide-angle 14mm lens for added perspective

Autofocus and manual focus switchover mechanism on focus ring

Filter and gelatin filter holder at the rear of lens

7.9-inch minimum focus distance

Mount compatible with Pentax AF SLR cameras

Specifications

Brand
Tamron
Model
AF69P-700
Focal Length
14mm
Maximum Aperture
f/2.8
Lens Elements
Hybrid Aspherical
Focusing System
Internal Focusing (IF)
Focus Mode Switch
Push/Pull AF/MF
Mount Compatibility
Pentax SLR

Pros & Cons

👍 Pros

  • Ultra-wide 14mm focal length captures expansive scenes that standard wide-angle lenses cannot match.
  • Fast f/2.8 maximum aperture performs well in low light and allows creative shallow-depth effects at close range.
  • Hybrid aspherical elements reduce corner light fall-off and distortion for improved edge-to-edge sharpness.
  • Internal focusing keeps the lens length constant and prevents the front element from rotating.
  • Convenient push/pull AF/MF switch on the focus ring allows instant manual focus override.

👎 Cons

  • Bulbous front element prevents the use of standard screw-on lens filters.
  • Fixed 14mm focal length offers no zoom flexibility, requiring the photographer to move physically to reframe.
  • Pentax-specific mount limits compatibility to a single camera system without an adapter.
  • At 14mm, barrel distortion can be noticeable in architectural shots and may need post-processing correction.
  • The lens is relatively large and heavy for a prime, which adds bulk to a Pentax kit bag.

Frequently Asked Questions

Yes, it supports autofocus on compatible Pentax SLR cameras and includes a push/pull AF/MF switch on the focus ring for quick manual override.
No, the bulbous front element on this 14mm ultra-wide lens prevents the use of standard threaded filters. Gel filter holders at the rear may be an option depending on the mount design.
The two hybrid aspherical elements correct distortion and reduce light fall-off at the corners, delivering sharper and more evenly illuminated images across the full frame.
It is compatible with Pentax SLR cameras using the Pentax AF mount, including many digital Pentax DSLRs. On APS-C bodies, the effective field of view will be narrower than on full-frame or 35mm film bodies.
Yes, it features an Internal Focusing (IF) system, so the front element does not rotate or extend during focus, which helps maintain balance and makes handling easier.