Cosina Voigtlander Ultron 40mm F/2 ASPH SL

Specifications01

MountCANON FD

Focal length40mm

Max aperturef/2

TypePrime

Release year2002

Weight255 g

Filter size52 mm

Min focus distance0.4 m

Max magnification0.12

Aperture blades9

Optical elements6

Groups5

AutofocusNo

StabilizationNo

Aperture controlAperture ring (with or without Auto Exposure setting)

Lens hoodLH-40D - Bayonet-type dome-shaped LH-40S - Bayonet-type round

TeleconvertersNot available

EraFilm era

Production statusDiscontinued

Additional Info02

Lens TypeWide-angle prime lens

Summary02

Voigtländer Ultron is a 40mm prime lens for Canon FD-mount cameras, with a maximum aperture of f/2 for low-light and shallow-depth-of-field use. It’s typically used as a standard/normal lens for general photography.

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Specifications from thelensdb

Where can this lens be adapted?

The Canon FD mount has a flange distance of 42 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work

FD lenses stay at full aperture until the camera moves a lever on the lens. Use an FD adapter with a ring that moves this lever.

Sony EAdapter · 24 mm
Canon RFAdapter · 22 mm
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Fujifilm XAdapter · 24.3 mm
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Fujifilm G (GFX)Adapter · 15.3 mm
Covers full-frame: it can vignette on a medium format sensor.
Canon EF-MAdapter · 24 mm