Quick answer
The Pentax smc Pentax-FA 80-320mm f/4.5-5.6 is a short telephoto to super telephoto telephoto zoom lens covering 80-320mm at f/4.5 for the Pentax K mount. Its smaller maximum aperture favours daylight shooting and keeps the lens compact.
About this lens
This 80-320mm f/4.5-5.6 telephoto zoom lens from Pentax fits Pentax K mount cameras. The range suits sports, wildlife, events and portraits.
Pentax smc Pentax-FA 80-320mm f/4.5-5.6 specifications
- Brand
- Pentax
- Mount
- Pentax K
- Focal length
- 80-320mm
- Maximum aperture
- f/4.5
- Lens type
- Telephoto Zoom
What can you shoot with the Pentax smc Pentax-FA 80-320mm f/4.5-5.6?
At 80-320mm this is a short telephoto to super telephoto telephoto zoom, which typically suits:
- Portraits with a flattering perspective
- Events and weddings
- Isolating subjects from the background
- Sports and action
- Wildlife and birds at moderate distance
Its smaller maximum aperture favours daylight shooting and keeps the lens compact.
Full-frame equivalent and field of view
Calculated from the focal length and crop factor. Not measured.
| Sensor | Crop | Equivalent | Horizontal FOV | Diagonal FOV |
|---|---|---|---|---|
| Full frame | 1.0x | 80–320mm | 6.4–25.4° | 7.7–30.3° |
| APS-C | 1.5x | 120–480mm | 4.3–17.1° | 5.2–20.4° |
Frequently asked questions
What mount does the Pentax smc Pentax-FA 80-320mm f/4.5-5.6 use?
It uses the Pentax K mount, so it fits Pentax K cameras directly.
What is the focal length of the Pentax smc Pentax-FA 80-320mm f/4.5-5.6?
It zooms across 80-320mm with a maximum aperture of f/4.5. That makes it a short telephoto to super telephoto lens.
Is the Pentax smc Pentax-FA 80-320mm f/4.5-5.6 a prime or a zoom lens?
It is a zoom lens covering 80-320mm, so you can reframe without moving. Its maximum aperture is f/4.5.
What is the Pentax smc Pentax-FA 80-320mm f/4.5-5.6 equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 120–480mm on full frame, with a 4.3–17.1° horizontal and 5.2–20.4° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the Pentax smc Pentax-FA 80-320mm f/4.5-5.6 fit?
Any Pentax K-mount camera, including Pentax K-1, Pentax K-3, Pentax K-3 II, Pentax K-3 Mark III, and Pentax K-30 and 15 more.
Alternatives for Pentax K from other brands
All Pentax K lensesSame mount, overlapping focal range, closest maximum aperture first.
More Pentax lenses for Pentax K
All Pentax lensesBrowse by focal length: 80mm lenses, 320mm lenses