Pentax HD Pentax-D FA 21mm F2.4ED Limited DC WR Full-Frame Lens (2021)
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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.
Ratings
What we found**
Neofiliac score 76% (not directly comparable across industries)
Pros
- Weather-sealed
- Great image quality
- 8-bladed aperture for sunstars
Cons
Price Comparison
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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