Data sheet: Miranda Auto 50 mm f/1.8

Pekka Buttler, 02/2026

Specifications

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

Brand:	Miranda	Lens name	1:1.8 f=50mm Auto
Focal length(s)1	50 mm	Angle-of-view2	47 °
Maximum Aperture	f/1.8	In Production	1968–72
Lens mount (this lens)	Miranda	Mount subtype	Auto aperture but no aperture coupling
Length3	41,3 mm	Diameter4	58,1 mm
Filter ring diameter	46 mm	Weight	203 grams
Lens element count	6	Lens group count	4
Aperture blades (S/R/C)5	6 S	Focus throw	290 °
Minimum focusing distance (indicated)	43 cms	Maximum magnification (calculated )	1:7
Has manual aperture ring	YES	Has Manual focus ring	YES
Aperture mechanism type	Automatic	Aperture click stops 6	1.8–2.8-4-5.6-8-11-16

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 came as the kit 50 with several generations of Miranda cameras, starting with the 1968 Miranda Sensomat before being replaced with the Miranda Auto E 50/1.8 in 1972.
• 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.
• See a run-down of Miranda nifty fifty lenses below.
• 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

Almost since the beginning of the Miranda camera system, there has been a ‘Miranda’ nifty fifty lens available for the Miranda mount.

	Years	Aperture automation	colouring scheme	Metering support	Filter mm	MFD	Notes
Soligor Miranda 50/1.9 Type I	1958–59	With PAD/pod	Silver	Stop-down only	46	0,45
Soligor Miranda 50/1.9 Type II	1959–63	With PAD/pod	Black (with silver rings)	Stop-down only	46	0,43
Soligor Miranda / Miranda auto 50/1.9 for F, G	1963–68	lever in mount	Black (with silver rings)	Stop-down only	46	0,43	[data sheet]
Soligor Miranda / Miranda auto 50/1.9 for Automex/ Sensorex	1960–66	lever in mount	Black (with silver rings)	Open aperture with aperture communication arm	46	0,45
Auto Miranda 50/1.8 for Sensorex	1966-72	lever in mount	Black (with silver rings)	Open aperture with aperture communication arm	46	0,43
Auto Miranda 50/1.8 for Sensomat	1968-72	lever in mount	Black (with silver rings)	Stop-down only	46	0,43	[this lens]
Auto Miranda 50/1.8 for Sensorex II	1972–?	lever in mount	Black (with silver rings)	Open aperture with aperture communication arm	46	0,43	7
Miranda E Auto 50/1.8	1972-?	lever in mount	Black (with silver rings)	lever in mount	52	0,43
Miranda EC Auto 50/1.8	1974-?	lever in mount	Black with silver aperture ring	lever in mount	49	0,43	[data sheet]

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).

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. ↩︎
7. The “Auto Miranda 50/1.8 For Sensorex II” is otherwise similar to its predecessor, but is 115 grams lighter than the “Auto Miranda 50/1.8 For Sensorex” (235 grams vs. 350 grams). ↩︎