Data sheet: Miranda Auto 25 mm f/2.8

Pekka Buttler, 03/2026

Specifications

The table below summarises the lens’ key specifications (measurements based on pictured sample):

Brand:	Miranda	Lens name	1:2.8 f=25mm Auto
Focal length(s)1	25 mm	Angle-of-view2	82 °
Maximum Aperture	f/2.8	In Production	1970–76 (all versions) 1970–74 (this version)
Lens mount (this lens)	Miranda	Mount subtype	Auto aperture and external aperture coupling arm
Length3	57,1 mm	Diameter4	59,2 mm
Filter ring diameter	52 mm	Weight	274 grams
Lens element count	8	Lens group count	7
Aperture blades (S/R/C)5	6 S	Focus throw	150 °
Minimum focusing distance (indicated)	25 cms	Maximum magnification (calculated )	1:8
Has manual aperture ring	YES	Has Manual focus ring	YES
Aperture mechanism type	Automatic	Aperture click stops 6	none

Further notes:

• Miranda was – in its heyday – an advanced Japanese camera manufacturer. You can read more about Miranda camera in the JAPB company profile on Miranda camera.
• This lens was (at the time of its introduction) the widest Miranda lens.
• At this stage Miranda was offering two families of technologies: lenses that used an external aperture coupling arm to communicate the selected aperture to a compatible body (automex series and sensorex series) and lenses that in no way communicated the selected aperture to the camera body that relied on stop-down metering (f-series, g-series and sensomat-series). In many sources these are abbreviated and called the ‘sensorex’ and ‘sensomat’ series respectively. This lens is of the later type.

• Importantly, Miranda was a camera manufacturer and not a lens manufacturer. This mean that from early on, Miranda cameras came equipped with various brands of lenses, including some rather prominent manufacturers such as Kowa and Zunow.
• Lenses branded as “Miranda” or “Soligor Miranda” were not manufactured by Miranda, but were sourced from other manufacturers and branded ‘Miranda’. Most often these lenses were sourced from Miranda’s long-time partner (and later: owner) Soligor (Allied Impex Corporation). Hence, the actual manufacturer of “Miranda” lenses is most often impossible to discern with certainty.

Versions/variants

The table below summarises the development of Miranda 25 mm f/2.8 lenses. (Data for this lens is based on measurements, whereas data for other versions is based on Miranda documentation.
For more information on generations of Miranda lenses, see the Miranda lens compendium.

Mainline spec	Years	Generation	Recipe	MFD	Filter	Length	Diameter	Weight	Notes
25 mm f/2.8	1970–1974	MEX-REX	8e / 7g	0,25m	52mm	57 mm	59 mm	274 g	(this lens)
25 mm f/2.8	1970–1974	F-G-MAT	8e / 7g	0,25 m	52mm	60mm	59 mm	300 g
25 mm f/2.8	1972–1976	E	8e / 7g	0,25 m	52mm	60 mm	59 mm	300 g
25 mm f/2.8	1974–76	DUAL	8e / 7g	0,25 m	52mm	57 mm	unknown	300 g

Adapting

This lens cannot be used natively on any current SLR or dSLRs. To use it in its native environment, you will need a Miranda Camera film body. While this lens will mount on any Miranda camera that uses the Miranda mount, its automatic aperture stop-down will work only on Miranda bodies after the Miranda F (launched 1963). For the aperture communication arm to be able to communicate aperture values, this lens needs to be mounted on an Automex or Sensorex series body.

Thanks to being a fully manual lens (manual aperture, manual focus), the lens can be adapted to all mirrorless cameras using a suitable adapter. However, Miranda adapters are not as easily available as adapters for many other legacy era camera mounts, nor is there a wide variety of specialist adapters.

Using Canon FD lenses on dSLRs is a theoretical possibility. Thanks to the relatively short flange focal distance of the Miranda mount (at 41,5 mm, clearly shorter than that of any full-frame dSLR mount), any adapter will necessitate some corrective optics to achieve infinity focus.

Footnotes

1. Focal length is (unless stated otherwise) given in absolute terms, and not in Full-frame equivalent. For an understanding of whether the lens is wide/tele, see ‘Angle-of-view’. ↩︎
2. Picture angle is given in degrees and concerns the diagonal picture angle. Rule of thumb:
   > 90 ° ==> Ultra-wide-angle
   70–90 ° ==> Wide-angle
   50–70 ° ==> Moderate wide-angle
   40–50 ° ==> ‘Standard’ or ‘normal’ lens
   20–40 ° ==> Short tele lens
   10-20 ° ==> Tele lens
   5-10 ° ==> Long tele lens
   < 5 ° ==> Ultra-tele lens ↩︎
3. Length is given from the mount flange to the front of lens at its shortest. ↩︎
4. Diameter excludes protrusions such as rabbit ears or stop-down levers. ↩︎
5. S=straight; R=rounded; C=(almost)circular at all apertures. ↩︎
6. Numbers equal aperture values on aperture ring; • intermediate click; – no intermediate click. ↩︎