Pentax
Pentax 21470 SMC 15mm f/4.0 DA ED AL Limited Wide Angle Lens
★★★★★
f/4.0
Unleash Ultra-Wide Perspectives with Precision Optics The Pentax SMC 15mm f/4.0 DA ED AL Limited Lens opens a world of creative possibilities for Pentax Digital SLR Cameras. Capture sweeping landscapes, dramatic architecture, and intimate interiors with stunning clarity and minimal distortion. ...
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Overview
Unleash Ultra-Wide Perspectives with Precision Optics
The Pentax SMC 15mm f/4.0 DA ED AL Limited Lens opens a world of creative possibilities for Pentax Digital SLR Cameras. Capture sweeping landscapes, dramatic architecture, and intimate interiors with stunning clarity and minimal distortion.
Detailed Specifications:
- Focal Length: 15mm (23mm equivalent in 35mm format)
- Maximum Aperture: f/4.0
- Lens Construction: Includes hybrid aspherical (AL) lens and extra-low-dispersion (ED) glass element
- Filter Diameter: 49mm
- Optical Design: Optimized for digital photography
- Distortion Correction: Minimized for ultra-wide-angle perspective
Key Features
Compact wide angle limited lens.
High-grade aluminum construction of the lens barrel, hood, and cap.
Quick-shift Focus System for instant switching from auto to manual focus.
PENTAX SP coating protects the exposed lens elements.
Extra low Dispersion glass and a hybrid aspherical lens element improve contrast and clarity
Specifications
Brand
Pentax
Model Number
21470
Focal Length
15mm
Maximum Aperture
f/4.0
Lens Type
Wide Angle, Limited
Construction Material
High-grade aluminum (barrel, hood, cap)
Focus System
Quick-shift Focus System
Coating
PENTAX SP coating
Glass Elements
Extra low Dispersion glass, Hybrid aspherical lens
Pros & Cons
👍 Pros
- Features a compact wide-angle design, making it suitable for discreet photography and easy portability.
- Constructed with high-grade aluminum for the lens barrel, hood, and cap, ensuring durability and a premium feel.
- Includes the Quick-shift Focus System, allowing for instant and seamless switching between auto and manual focus.
- PENTAX SP coating protects the exposed lens elements, enhancing durability and making cleaning easier.
- Utilizes Extra-low Dispersion (ED) glass and a hybrid aspherical lens element to improve image contrast and clarity.
👎 Cons
- As a prime wide-angle lens, it lacks zoom capabilities, requiring the photographer to physically move to change perspective.
- The f/4.0 maximum aperture may be limiting in very low-light conditions compared to lenses with wider apertures like f/2.8 or f/1.8.
- The "Limited" designation often implies a higher price point due to premium construction and optical design.
- The 15mm focal length, while wide, might be too specialized for photographers who prefer a more general-purpose lens.
- Without optical stabilization, handheld shooting in challenging conditions might require higher shutter speeds or a tripod.
Frequently Asked Questions
What is the focal length of this Pentax lens?
The Pentax SMC DA ED AL Limited Wide Angle Lens has a fixed focal length of 15mm.
Does this lens offer autofocus?
Yes, it features the Quick-shift Focus System, which allows for instant switching between auto and manual focus.
What is the construction material of this lens?
The lens barrel, hood, and cap are made from high-grade aluminum, contributing to its durability and premium feel.
Does the lens have any special coatings for protection?
Yes, it includes the PENTAX SP coating, which protects the exposed lens elements.
What kind of glass elements are used to improve image quality?
The lens utilizes Extra-low Dispersion (ED) glass and a hybrid aspherical lens element to enhance contrast and clarity in images.
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