• Ultraviolet Photography

Soligor 135mm f/1:3.5

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#1 UlfW

    Ulf W

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  • Location: Sweden, Malmö

Posted 27 March 2021 - 14:00

Last Update: 03 April 2021 agb/label/spacing
Finalized: Work in progress.

Soligor 135mm f/3.5

Manufacturer: Tokina
Manufacturer's lens designation: Soligor 1:3,5 f=135mm No.<serial number> Lens Made in Japan
Currently manufactured: No

Lens type: Manual focus, Prime, Short Telephoto
Design: TBD
Focal length: 135mm
Aperture range: f/3.5 – f/22, Preset Manual, 8 blades
Focus Range: 1.5m to infinity
Sensor format/coverage: up to 24 mm x 36 mm
Mount: M42 x 1 thread**, others. The mount is internally mounted on a T2 mount structure that can be exchanged between lenses
Helicoid: Yes
Flange Focus distance: M42/45.46 mm,
Front filter: 46 mm x 0.75 mm
Introduction year: before 1965
This lens produced: 1964
S/N of test object: 86410227
** Mount of test object

Image of test object:

Attached Image: IMG_2719.jpg Attached Image: IMG_2720.jpg Attached Image: IMG_2722.jpg

Transmittance Summary

Definitions of the parameters below
  • Range: This Soligor 135mm f/3.5 transmits from 1-80% in an increasing slope from 327nm to 400nm.
  • TVISmax (%) = 87%
  • T400nm (%) = 80%
  • T365nm (%) = 63%
    This high percentage is an indicator for relatively short exposure time under typical UV-pass filtration peaking around 360 nm or when using 365 nm UV-LED illumination.
  • λUV HMvis(nm) = 352nm
  • λUV HM400(nm) = 350nm
  • λUV Zero(nm) = 327nm
  • These three values indicate that the lens is marginally working for some shorter wavelength UV-A photography with some filters and the few for this, suitable cameras.

Spectral Transmission Graphs

UV-NIR, Soligor 135mm f/3.5
Attached Image: Screen Shot 2021-03-18 at 09.16.00.png
The transmission measurement accuracy into the end of NIR range is less good due to limitations in the light source.

UV, Soligor 135mm f/3.5
Attached Image: Screen Shot 2021-03-18 at 09.15.27.png

UV-Log, Soligor 135mm f/3.5
Attached Image: Screen Shot 2021-03-18 at 09.15.07.png
Numerical Spectra Data available: Yes

General comments about the UV-reach:

Filters and how to use them on this lens:
The front filter thread is a 46mm standard filter thread.

It is also possible to use rear mounted filters, either in lens mount adapters for mirrorless cameras like Sony A-series etc, or placed directly in the camera.

Handling and focussing:

Flare and sun-stars:


Lens distortion:

Chromatic Aberration in UV:
Ulf Wilhelmson
Curious and trying to see the invisible.