The Pentax HD Pentax-D FA 15-30mm f/2.8 ED SDM WR is a 15–30 mm zoom lens with a maximum aperture of f/2.8 for the Pentax K mount. Here are its field of view on different sensors, hyperfocal distances, Milky Way exposure limits and the cameras it fits.
Focal length
15–30 mm
Max aperture
f/2.8
Mount
Pentax K
Designed for
Full frame
Field of view by sensor
| Sensor | Diagonal angle of view | 35 mm equivalent |
|---|---|---|
| Full frame | 110.5° – 71.6° | 15–30 mm |
| APS-C (1.5×) | 86.6° – 50.5° | 23–46 mm |
| Canon APS-C (1.6×) | 84.1° – 48.5° | 24–48 mm |
| Micro Four Thirds | 71.6° – 39.7° | 30–60 mm |
Hyperfocal distance
| Focal length | f/2.8 | f/5.6 | f/8 | f/11 | f/16 |
|---|---|---|---|---|---|
| 15 mm | 2.7 m | 1.4 m | 1.0 m | 0.7 m | 0.5 m |
| 30 mm | 11 m | 5.4 m | 3.8 m | 2.8 m | 1.9 m |
Circle of confusion 0.030 mm (sensor size the lens is designed for).
Longest exposure for sharp stars
| Camera | NPF rule (wide open) | 500 rule |
|---|---|---|
| Full frame (24 MP) | 18.3 s @ f/2.8 | 33.3 s |
| Full frame (45 MP) | 15.3 s @ f/2.8 | 33.3 s |
| APS-C (24 MP) | 14.3 s @ f/2.8 | 21.8 s |
Cameras that fit (43)
- KMZ Zenit 122K
- KMZ Zenit 212K
- KMZ Zenit 312K
- KMZ Zenit KM
- Pentax 35mm film: full frame
- Pentax *ist DL2
- Pentax *ist DL
- Pentax *ist DS2
- Pentax *ist DS
- Pentax *ist D
- Pentax K-m
- Pentax K100D
- Pentax K100D Super
- Pentax K110D
- Pentax K10D
- Pentax K20D
- Pentax K-30
- Pentax K-50
- Pentax K-500
- Pentax K-7
- Pentax K-52010
- Pentax K-5 II2012
- Pentax K-5 IIs
- Pentax K-32013
- Pentax K-3 II2015
- Pentax K-3 III2021
- Pentax K-3 III Monochrome
- Pentax K2000
- Pentax K200D
- Pentax K-x
- Pentax K-r
- Pentax K-S2
- Pentax K-S1
- Pentax K-01
- Pentax KF2022
- Pentax KP2017
- Samsung GX10
- Samsung GX20
- Samsung GX-1S
- Samsung GX-1L
- Pentax K-12016
- Pentax K-1 II2018
- Pentax K-702016
Where to buy
B&H PhotoAmazonKEH (used)MPB (used)FAQ
What is the Pentax HD Pentax-D FA 15-30mm f/2.8 ED SDM WR equivalent to on APS-C?
About 22–45 mm (1.5×) or 24–48 mm on Canon APS-C (1.6×).
Which cameras is the Pentax HD Pentax-D FA 15-30mm f/2.8 ED SDM WR compatible with?
It fits KMZ Zenit 122K, KMZ Zenit 212K, KMZ Zenit 312K, KMZ Zenit KM, Pentax 35mm film: full frame and more (see the full list above).