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Pentax 50-200mm f/4-5.6 SMC PENTAX-DAL ED Autofocus APS-C Lens for K-Mount {52}

Model #241828
  • $49.00

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New in box complete with manufacturer's USA warranty. Not previously owned or used.
Essentially new with no signs of use. “Open box.” In manufacturer's packaging with original accessories and instructions. 180-day warranty.
Barely used with virtually no traces of wear. Only the closest inspections will reveal slight use. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Lightly used with limited signs of wear. Exceptionally nice but may have slight wear on finish visible. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Noticeably used with average signs of wear. Shows moderate wear for the age of the item, with the possibility of blemishes and/or minimal dings. Lens glass may have average dust and zoom/focus ring tension may have slight looseness or tightness overall, but will not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Frequently used with above-average wear. May have dents, dings, or finish loss. Lens glass may have small scratches, dust, and blemishes, and zoom/focus ring tension may have moderate looseness or tightness overall, but should not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Heavily used with extensive visible wear. Equipment is rough, with multiple impressions in the finish, excessive finish loss and brassing. Glass will have marks, fungus and/or heavy/cloudy haze which could affect picture quality. Accessories usually not included, unless noted in listing. Not covered under KEH warranty.
Non-functional or damaged. Equipment will not work. Usable for parts. Not covered under KEH warranty and non-returnable.
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Pentax DA 50-200mm f/4-5.6 ED: APS-C telephoto with ED glass

The smc Pentax-DA 50-200mm f/4-5.6 ED is a native APS-C telephoto zoom built around the KAF2 mount, covering a focal range that translates to roughly 77-308mm in full-frame terms. The ED glass element keeps chromatic aberration in check at the long end, where color fringing on high-contrast edges becomes a real problem with lesser optics. Autofocus is built in, and the 52mm filter thread makes it easy to share polarizers or ND filters with other DA-series glass.

At 50mm on the short end, you have enough working distance for candid portraits without getting in your subject's face. Push to 200mm and you're reaching across a field or pulling birds out of a midground tree. The f/5.6 maximum aperture at 200mm means you'll be leaning on good light or bumping ISO in dim conditions, but in daylight this lens is a capable workhorse for Pentax APS-C shooters who want reach without carrying a large, heavy prime.

Who It's For

Wildlife and nature photographers working in daylight will appreciate the 200mm reach and ED glass controlling fringing on feathers and foliage. Sports photographers at outdoor youth events get a usable telephoto range without the weight penalty of faster glass. Travel photographers already invested in the Pentax KAF2 ecosystem can pack this as a lightweight second lens alongside a standard zoom. Portrait shooters who want more subject separation than a kit lens provides will find the 50-200mm range gives them room to work at a comfortable distance.

Key Features

  • 50-200mm focal range with ED glass for chromatic aberration control
  • f/4-5.6 variable maximum aperture
  • Pentax KAF2 mount for native APS-C coverage
  • Integrated autofocus
  • 52mm filter thread
  • Daylight-optimized telephoto zoom for reach without size penalty

FAQ

What's the full-frame equivalent focal length?
On APS-C, the 50-200mm range translates to roughly 77-308mm in full-frame terms.
Does this lens have autofocus?
Yes, autofocus is built in.
What filter size does this lens use?
52mm. You can share polarizers and ND filters with other DA-series glass.
What does the ED element do?
The ED (Extra-low Dispersion) glass controls chromatic aberration, especially important at 200mm where color fringing on high-contrast edges becomes visible with lesser optics.
Is f/5.6 at 200mm bright enough for indoor shooting?
No. At 200mm you'll need strong daylight or higher ISO in dim conditions. It's a daylight workhorse lens.
What's the minimum working distance at 50mm?
The specs don't specify minimum focus distance, but at 50mm you have enough working distance for candid portraits without crowding your subject.
SpecificationValue
Focal Length50-200mm
Max Aperturef/4-5.6
MountPentax KAF2

This description was generated using AI based on KEH's internal product standards, product expertise, and knowing what customers care about most. While we strive for accuracy, details may vary by individual item.

Brand Name Pentax
Filter Size 52mm
Focus Type Autofocus (camera motor)
Lens Mount Pentax KAF2 (SMC-DA, SMC-DFA)
Lens Type Telephoto / Long
Max Focal Length 200mm
Min Focal Length 50mm