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Pentax HD Pentax-D FA 21mm F2.4ED Limited DC WR Full-Frame Lens (2021)

MSRP 1400 USDNeoscore 76%

Product Gallery

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Product Overview

Pentax HD Pentax-D FA 21mm F2.4ED Limited DC WR is an ultra wide-angle prime lens for Pentax K-mount. It covers the full-frame image circle. Introduced by Pentax in 2021, it has 11 elements in 8 groups.
For incremental weathers, Pentax is kind enough to include weather sealing.
As an ultra wide-angle prime lens that happens to have relatively small maximum aperture, it is best suited for landscape photography. Even though the lens is not stabilized, at this focal range it does not usually matter. In fact, some may be able to get cleaner corners without image stabilization. Those who like sunstars (sun bursts) will be pleased by the lens' even-numbered aperture count, though conversely those who find sunstars distracting may have the opposite feeling.

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Ratings

What we found**

Neoscore: 76% (not directly comparable across industries)
Pros
  • Weather-sealed
  • Great image quality
  • 8-bladed aperture for sunstars
Cons

    Price Comparison (incl. referral links)*

    Specifications

    Construction

    Aperture Blades
    8 blades, Rounded diaphragm
    Colors
    Black, Silver
    Form Factor
    Ultra Wide-Angle Prime Lens
    Image Size
    Full-Frame
    Lens Barrel
    Distance scale, DoF scale
    Lens Mount
    Pentax K-mount
    Material
    Aluminum
    Optical Formula | Elements
    11 elements
    Optical Formula | Groups
    8 groups
    Optical Formula | Special Glass
    4 ED elements, 1 Super ED element groups

    Dimensions

    Filter Diameter
    67 mm / 2.64 in
    Size | Diameter
    74 mm / 2.91 in
    Size | Length
    89 mm / 3.50 in
    Weight
    416 g / 14.70 oz

    Function

    Angle Of View
    91.7° Diagonal | 81.2° Horizontal | 59.5° Vertical
    Aperture
    f/2.4–22 ~ f/2.4–22
    Autofocus
    Yes
    Focal Length
    21 mm
    Focus Type
    Internal
    Image Stabilization
    No
    Weather Resistance
    Yes

    Performance

    Max Magnification
    0.26x
    Min Focus Distance
    180 mm / 7.09 in

    Production

    Accessory
    Lens hood included
    Debut
    2021-10-21

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