Lens Summary
Brand: Pentax
Also Known As: Pentax 18-50mm f/4-5.6
Lens Type: Zoom Lens
Format: APS-C / DX
Focus: Autofocus
Lens Mount: Pentax K
Release Date: 2015-02-09
MSRP Price: $296.95
Made in: Japan
Production Status: In Production
Lens Description: Offering flexibility in a compact package, the K-mount HD PENTAX DA 18-50mm f/4.0-5.6 DC WR RE Lens from Pentax features a retractable design which significantly shortens the lens when not in use, and has a versatile 35mm equivalent focal length of 27.5-76.5mm when used with APS-C cameras. The aperture is variable with a range of f/4.0-5.6 when wide open, and the lens utilizes aspherical lens elements to ensure edge-to-edge sharpness throughout the zoom range. Also, it utilizes both the HD PENTAX coating for limiting flare and ghosting for excellent contrast in your images as well as a Super Protect coating to ensure the lens elements aren't easily damaged or scratched.
Pentax HD PENTAX-DA 18-50mm f/4-5.6 DC WR RE Specifications
| Lens Specifications | |
|---|---|
| Lens Type | Zoom Lens |
| Focal Length | 18-55mm |
| Mount Type | Pentax K |
| Format | APS-C / DX |
| Compatible Format(s) | APS-C |
| Compatible with Teleconverters | No |
| Maximum Reproduction Ratio | 0.23x |
| Shake Reduction (Image Stabilization) | No |
| Aperture Information | |
| Aperture Ring | No |
| Maximum Aperture | f/4-5.6 |
| Minimum Aperture | f/22-32 |
| Maximum Angle of View (APS-C or smaller format) | 76° |
| Minimum Angle of View (APS-C or smaller format) | 31.5° |
| Optical Information | |
| Lens Elements | 11 |
| Lens Groups | 8 |
| Diaphragm Blades | 7 (Rounded) |
| Aspherical Elements | 2 |
| HD Coating | Yes |
| Super-Multi Coating (SMC) | No |
| Fluorine Coating | Yes |
| Focus Information | |
| Focus | Autofocus |
| Built-in Focus Motor | Yes |
| Supersonic Direct-drive Motor (SDM) | Yes |
| Minimum Focus Distance | 0.30m |
| Filter Information | |
| Filter Size | 58mm |
| Accepts Filter Type | Screw-on |
| Physical Characteristics | |
| Weather / Dust Sealing | Yes |
| Mount Material | Metal |
| Tripod Collar | No |
| Dimensions | 71 x 41mm |
| Weight | 158g |
| Other Information | |
| Available in Colors | Black |
MTF Chart
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