Choosing the best lens for your Pentax K70 can boost your photo quality significantly. The right lens matches your style and shooting needs perfectly.
Pentax K70 users need lenses that offer sharpness, versatility, and durability. Several lenses stand out for this camera. The Pentax 21977 DA 18-135mm f/3. 5-5. 6 provides a wide zoom range for everyday use. The HD-DA Fish-Eye 10-17mm lens creates unique, ultra-wide shots with a compact design.
For wildlife or sports, the HD D FA 150-450mm f/4. 5-5. 6 telephoto lens captures distant subjects clearly. The HD 16-50mm f/2. 8 zoom offers bright images and fast autofocus. Lastly, the professional 420-1600mm f/8. 3 manual lens suits extreme telephoto needs. Each lens fits different photography goals with Pentax K70.
Table of Contents
Pentax Da 18-135mm F/3.5-5.6 Ed Al (if) Dc Wr Lens

The Pentax 21977 DA 18-135mm f/3.5-5.6 ED AL (IF) DC WR Lens is ideal for photography enthusiasts and professionals using Pentax Digital SLR cameras who want a versatile, all-in-one lens. This lens is perfect for those who seek a lightweight, durable, and weather-resistant option to cover a wide range of shooting situations, from wide-angle landscapes to telephoto portraits.
Pros:
- Wide focal length range of 18-135mm for versatile shooting options
- Weather-resistant (WR) design for reliable performance in challenging conditions
- Compact and lightweight with dimensions of approximately 2.87 x 2.87 x 2.99 inches and weighing just under 0.9 pounds
- Features ED (Extra-low Dispersion) glass and AL (Aspherical Lens) elements for superior image quality
- Internal Focus (IF) mechanism ensures fast and quiet autofocus
Cons:
- Aperture range of f/3.5-5.6 may be limiting in low-light conditions
- Not ideal for specialized photography requiring prime lenses or faster apertures
The Pentax 21977 DA 18-135mm lens combines a broad zoom range with advanced optical technologies like ED and AL elements, which significantly reduce chromatic aberrations and distortions. This ensures sharp, clear images with vibrant colors, making it a reliable choice for everyday photography. Its compact size and lightweight construction enhance portability, allowing photographers to carry it comfortably throughout the day without fatigue.
Additionally, the lens features a weather-resistant (WR) design that protects internal components from moisture and dust, enabling confident shooting in various environmental conditions. The internal focusing (IF) system provides quick and silent autofocus, which is particularly beneficial for capturing spontaneous moments and video recording. Overall, this lens offers an excellent balance of flexibility, image quality, and durability for Pentax DSLR users.
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Pentax Hd-da Fish-eye 10-17mm F3.5-4.5 Ed Ultra Wide Angle Zoom Lens

The Pentax HD-DA Fish-Eye 10-17mm F3.5-4.5 ED Ultra Wide Angle Zoom Lens is ideal for photography enthusiasts and professionals who are looking to capture stunning, creative shots with a unique fisheye effect. This lens is perfect for those using PENTAX DSLR cameras such as the K-1 II, K-70, and KP, who want a compact and lightweight lens that delivers ultra-wide-angle perspectives with excellent image quality. If you enjoy shooting landscapes, architecture, or artistic photos with a distinctive curved distortion, this lens is an excellent choice.
Pros:
- Compact and lightweight design, weighing only 0.71 pounds
- Ultra wide-angle zoom range from 10-17mm for creative fisheye effects
- High-quality HD coating for enhanced clarity and reduced reflections
- Compatible with multiple PENTAX DSLR models like K-1 II, K-70, and KP
- ED (Extra-low Dispersion) glass minimizes chromatic aberrations
Cons:
- Fisheye distortion may not be suitable for all types of photography
- Aperture range of F3.5-4.5 may limit low-light performance
- Limited zoom range compared to standard zoom lenses
The Pentax HD-DA Fish-Eye 10-17mm F3.5-4.5 ED lens offers a remarkable ultra wide-angle zoom capability that enables photographers to explore creative perspectives with a distinctive fisheye effect. Its compact and lightweight construction makes it highly portable, allowing users to carry it conveniently for outdoor shoots or travel photography. The lens features Pentax’s advanced HD coating, which significantly improves light transmission and reduces flare and ghosting, resulting in crisp and vibrant images. Additionally, the use of ED glass ensures sharpness and color accuracy by minimizing chromatic aberrations.
Designed specifically for PENTAX DSLR cameras such as the K-1 II, K-70, and KP models, this lens seamlessly integrates with these bodies, providing reliable autofocus and excellent optical performance. While the fisheye distortion adds an artistic flair to your shots, the zoom range from 10mm to 17mm allows versatility within this creative style. Whether capturing expansive landscapes, architectural details, or striking creative compositions, this lens delivers impressive results with a unique visual impact.
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Pentax Hd D Fa 150-450mm Super-telephoto Lens

The Pentax HD D FA 150-450mm f4.5-5.6ED DC AW Super-Telephoto Lens is ideal for photography enthusiasts and professionals who use Pentax KAF cameras and require exceptional reach and image clarity. This lens is perfect for wildlife, sports, and outdoor photographers who need a versatile telephoto zoom lens with excellent optical performance and weather resistance.
Pros:
- High-quality HD coating for reduced flare and improved image contrast
- Weather-resistant (AW) construction for reliable use in challenging environments
- Wide focal length range of 150-450mm for versatile telephoto shooting
- Lightweight design at approximately 0.93 pounds for easier handling
- Compatible with Pentax KAF mount cameras ensuring seamless integration
Cons:
- Variable aperture of f/4.5-5.6 may limit low-light performance compared to constant aperture lenses
- Relatively large size with 9.7 inches height which might affect portability
- Not ideal for casual photographers due to specialized telephoto range
The Pentax HD D FA 150-450mm f4.5-5.6ED DC AW Super-Telephoto Lens features advanced optical elements that deliver sharp, vibrant images with minimal distortion. Its ED (Extra-low Dispersion) glass reduces chromatic aberrations, ensuring clarity and color accuracy at long focal lengths. The lens’ high-definition coatings further enhance contrast and reduce ghosting, making it an excellent choice for capturing detailed wildlife or sports scenes.
Designed with a robust yet lightweight black body, this lens is built to withstand adverse weather conditions thanks to its All Weather (AW) sealing. Photographers can confidently shoot outdoors in rain or dust without worrying about damage. The autofocus system is fast and quiet, powered by a DC motor that ensures precise focusing on fast-moving subjects, enhancing usability and image quality. Overall, this super-telephoto lens combines performance, durability, and versatility, making it a valuable tool for serious Pentax photographers.
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Pentax Hd 16-50mm F2.8ed Plm Aw Large-aperture Standard Zoom Lens
![Pentax HD 16-50mm F2.8ED PLM AW Large-Aperture Standard Zoom Lens [High-Speed AF] [High-Performance HD Coating] [Dust-Proof/Weather-Resistant Construction] [Circular Diaphragm] (28030)](https://m.media-amazon.com/images/I/41fViR2norL._SL500_.jpg)
The Pentax HD 16-50mm F2.8ED PLM AW Large-Aperture Standard Zoom Lens is ideal for professional photographers and serious enthusiasts who require a versatile, high-performance lens for a variety of shooting scenarios. Those looking for fast autofocus, excellent image quality, and reliable weather resistance will find this lens a valuable addition to their gear.
Pros:
- High-Speed AF for quick and accurate focusing
- High-Performance HD Coating reduces reflections and enhances image clarity
- Dust-Proof and Weather-Resistant Construction ensures durability in challenging environments
- Large Aperture F2.8 allows for excellent low-light performance and depth of field control
- Circular Diaphragm contributes to smooth and pleasing bokeh
Cons:
- Relatively heavier and bulkier compared to some standard zoom lenses
- Price point may be high for casual users or beginners
The Pentax HD 16-50mm F2.8ED PLM AW lens features a wide zoom range combined with a constant large aperture of F2.8, making it highly adaptable for landscapes, portraits, and low-light photography. The inclusion of a powerful PLM (Pulse Motor) ensures rapid and silent autofocus, which is especially beneficial for capturing fast-moving subjects or recording video without distracting noise.
Its rugged construction includes dust-proof and weather-resistant sealing, allowing photographers to shoot confidently in adverse conditions without worrying about damage. The lens’s advanced HD coating minimizes ghosting and flare, resulting in crisp, high-contrast images. Additionally, the circular diaphragm produces beautifully smooth background blur, enhancing the artistic quality of photos.
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Professional 420-1600mm F/8.3 Hd Manual Telephoto Lens For Pentax

The Professional 420-1600mm f/8.3 HD Manual Telephoto Lens is ideal for photography enthusiasts and professionals who use Pentax DSLR cameras such as the K-1, K-S2, K-S1, K-500, and others in the Pentax lineup. This lens is perfect for users looking to capture distant subjects with exceptional clarity and detail, including wildlife, sports, and landscape photographers who require a powerful telephoto zoom without the need for autofocus.
Pros:
- Extremely long focal range from 420mm to 1600mm for versatile telephoto shooting
- High-definition (HD) optics ensuring sharp, clear images
- Manual focus control for precise focusing adjustments
- Compatible with a wide range of Pentax cameras
- Compact and lightweight design with dimensions of 12.0 inches length and 4.0 inches in height and width
Cons:
- No autofocus functionality, requiring manual focus skill
- Relatively narrow maximum aperture of f/8.3 which may limit low-light performance
- Large size may require a tripod for stability during extended shoots
The 420-1600mm f/8.3 HD Manual Telephoto Lens offers an impressive zoom range that enables photographers to capture subjects from extreme distances without compromising image quality. Its high-definition glass elements reduce chromatic aberrations and distortions, providing crisp and vibrant photos. The manual focus design allows for precise control, making it suitable for experienced photographers who want to fine-tune their shots, especially in challenging conditions where autofocus might struggle.
Designed by OPTURA HD OPTICS, this lens is built with quality and durability in mind, fitting seamlessly with a variety of Pentax DSLR models. Its relatively lightweight and compact form factor make it easier to handle compared to other super-telephoto lenses. However, users should consider using a tripod to maintain stability during long exposure or extended shooting sessions, due to the lens’s significant zoom capabilities and narrow aperture. Overall, this lens is an excellent tool for those seeking to expand their photographic reach with a reliable and clear telephoto solution.
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Frequently Asked Questions
What Is The Best Zoom Lens For Pentax K70?
The Pentax 21977 DA 18-135mm f/3. 5-5. 6 ED AL offers versatile zoom. It covers wide to telephoto ranges, ideal for everyday shooting. Its weather-resistant design suits outdoor use with the Pentax K70.
Which Lens Offers Ultra-wide Fisheye Shots For K70?
Pentax HD-DA Fish-Eye 10-17mm F3. 5-4. 5 provides dramatic ultra-wide fisheye images. It’s compact, lightweight, and perfect for creative photography on the Pentax K70.
Is There A Telephoto Lens Suitable For Pentax K70?
Yes, the Pentax HD D FA 150-450mm f4. 5-5. 6ED DC AW is an excellent telephoto lens. It delivers sharp images from a long distance with weather-resistant features.
What Lens Is Best For Low-light Photography On K70?
Pentax HD 16-50mm F2. 8ED PLM AW has a wide f/2. 8 aperture. It performs well in low light and offers fast autofocus with weather sealing for K70 users.
Can I Use Manual Telephoto Lenses With The Pentax K70?
Yes, the Professional 420-1600mm f/8. 3 HD manual telephoto lens works with Pentax K70. It’s ideal for distant subjects but requires manual focus and steady support.
Conclusion
Choosing the right lens for your Pentax K70 can greatly improve your photography experience. Each lens on this list offers unique benefits for different shooting needs. The DA 18-135mm is great for everyday use with its versatile zoom range. For creative wide-angle shots, the HD-DA Fish-Eye 10-17mm lens delivers stunning effects.
If you need to capture distant subjects, the HD D FA 150-450mm telephoto lens is ideal. For fast and sharp images, the HD 16-50mm f/2. 8 zoom lens works well in various light conditions. The professional 420-1600mm manual telephoto lens suits those who want extreme reach.
Think about what kind of photos you want to take. This will help you pick the best lens for your style. Your Pentax K70 will perform better with the right lens by your side. Happy shooting!