The Zeiss Distagon T* 25mm f/2.8 ZF.2 is a 25 mm prime lens with a maximum aperture of f/2.8 for the Nikon F AI-S, Pentax KAF2 mounts. Here are its field of view on different sensors, hyperfocal distances, Milky Way exposure limits and the cameras it fits.
Focal length
25 mm
Max aperture
f/2.8
Mount
Nikon F AI-S
Designed for
Full frame
Field of view by sensor
| Sensor | Diagonal angle of view | 35 mm equivalent |
|---|---|---|
| Full frame | 81.7° | 25 mm |
| APS-C (1.5×) | 59.0° | 38 mm |
| Canon APS-C (1.6×) | 56.8° | 40 mm |
| Micro Four Thirds | 46.8° | 50 mm |
Hyperfocal distance
| Focal length | f/2.8 | f/5.6 | f/8 | f/11 | f/16 |
|---|---|---|---|---|---|
| 25 mm | 7.5 m | 3.7 m | 2.6 m | 1.9 m | 1.3 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) | 11.0 s @ f/2.8 | 20.0 s |
| Full frame (45 MP) | 9.2 s @ f/2.8 | 20.0 s |
| APS-C (24 MP) | 8.6 s @ f/2.8 | 13.1 s |
Cameras that fit (132)
- 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
- Nikon 1 S1
- Nikon 1 V1
- Nikon 1 J1
- Nikon 1 AW1
- Nikon 1 S2
- Nikon 1 V2
- Nikon 1 J2
- Nikon 1 V3
- Nikon 1 J3
- Nikon 1 J4
- Nikon 1 J5
- Nikon Z 52020
- Nikon Z5II2025
- Nikon Z5IIC
- Nikon Z 62018
- Nikon Z 6II2020
- Nikon Z6III2024
- Nikon Z 72018
- Nikon Z 7II2020
- Nikon Z 82023
- Nikon Z 92021
- Nikon Z f2023
- Nikon ZR
- Nikon Z 302022
Where to buy
B&H PhotoAmazonKEH (used)MPB (used)FAQ
What is the Zeiss Distagon T* 25mm f/2.8 ZF.2 equivalent to on APS-C?
About 38 mm (1.5×) or 40 mm on Canon APS-C (1.6×).
Which cameras is the Zeiss Distagon T* 25mm f/2.8 ZF.2 compatible with?
It fits Pentax 35mm film: full frame, Pentax *ist DL2, Pentax *ist DL, Pentax *ist DS2, Pentax *ist DS and more (see the full list above).