There are some lenses that will give you the luxury of taking in all of your surroundings from one spot; this is a fine example. With an equivalent focal length of 82.5-450mm, this 6X long-telephoto lens will bring into view birds in the trees, the hockey goal across the arena, or the column detail on that temple at the Roman Forum, all without having to run around for that closer angle. If your standard kit zoom isn't giving you all the reach you need, this is an excellent way to extend your creative choices outdoors.

Extra-low dispersion (ED) glass elements give you sharper detail with minimized distortion and color fringing. And the Super Protect (SP) coating repels dust, water and grease to keep your lens glass clean and smudge-free.

Product Highlights:

  • Pentax KAF2 55-300mm f/4-5.8 ED long telephoto zoom lens with 35mm equivalent of 82.5-450mm
  • compatible with Pentax K-mount digital SLR and hybrid cameras
  • ED (extra-low dispersion) elements correct chromatic aberration for excellent image quality and sharpness
  • constructed of 12 elements in 8 groups
  • minimum focus distance: 55-1/4"
  • minimum aperture: f/22 -f/32
  • filter size: 58mm
  • lens is 4-13/16" long, 2-13/16" in diameter
  • weight: 15.5 ounces
  • supplied accessories: front and rear lens caps, lens hood, and soft case
  • warranty: 1 year
  • Our 60-day money-back guarantee

Hands-on research

What's in the box?

Download owner's manual

  • smc Pentax-DA 55-300mm F4-5.8ED lens (with attached front and rear lens caps)
  • PH-RBG 58mm lens hood (installed on lens)
  • Soft vinyl carrying case
  • Operating Manual
  • Notification of Change of Company Name sheet
  • Pentax Worldwide Service Network sheet
  • Serial Number Card

Features and Specs

General
Brand Compatibility Pentax
Image Stabilization No
Focal Length 55-300mm
Maximum Aperture F4 (W) - 5.8 (T)
Weight 15.5 ounces
Parts Warranty 1 Year
Labor Warranty 1 Year

Product Research

Features

Overview: The smc Pentax-DA 55-300mm F4-5.8ED is a 5.45x telephoto zoom lens for Pentax D-SLR and interchangeable lens cameras. Its 35mm equivalent is 82.5-450mm, and is ideal for moderate to long shots.

Lens Mount: The lens has a KAF-mount, and can fit Pentax D-SLR and interchangeable lens cameras with KAF, KAF2 and KAF3 mounts. This includes the Pentax K-5 and K-01 cameras.

Zoom Ring: With the 55-300mm lens, zooming is performed by rotating the zoom ring (closest to the camera body). Markings are provided at 55, 70, 100, 200, and 300mm.

Lens Hood: The lens kit includes the PH-RBG 58mm lens hood to keep unwanted light out of the lens, and protect the front of the lens. It has a PL filter window which can be opened for facilitate the manipulation of the circular polarizing filter when the lens hood is attached. The hood can be reverse-mounted on the lens for storage. When installed, the hood adds approximately 2" to the overall length of the lens.

ED Glass: The Extra-low Dispersion (ED) glass lens element offers superior sharpness with minimum chromatic aberration.

Super Protect: The Pentax-original SP (Super Protect) coating repels dust, water, and grease to help keep the lens clean.

Specifications:

  • Focal Length: 55-300mm
  • 35mm Equivalent: 82.5-450mm
  • Lens Construction: 12 elements in 8 groups
  • Mount Type: KAF-mount
  • Maximum Aperture: F4-F5.8
  • Minimum Aperture: F22-F32
  • Maximum Magnification: 0.28x
  • Angle of View: 29° to 5.4°
  • Minimum Focus Distance: 4.67'
  • Lens Hood: PH-RBG 58mm
  • Filter Diameter: 58mm
  • Dimensions:
    • Diameter: 2.792"
    • Length: 4.766" (5.211" w/caps)
    • Weight: 15.5 ounces (16.6 oz w/lens hood)

Our Product Research Team

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Pentax DA 55-300mm f/4-5.8 Lens Reviews

Average Customer Review:

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Get closer

Written By Rob G, Charlottesville, VA on Monday, May 06, 2013

Good quality for the price, easily zooms in and focuses sharply. Relatively light weight, and durable. I use this lens primarily for birdwatching photos, and I can get some very close in pictures. It's not weather sealed, but I can deal with that for the price I paid.

Pros: Lightweight, but solidly built

Cons: Not weather sealed.