Voigtlander Ultron 40mm f/2.0 SL-II Manual Focus Lens

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A First Rate Traditional Build With Classic Style

The Voigtlander 40mm f/2.0 SL-II Ultron Manual Focus Camera Lens features an ultra-condensed, robust featuring a first rate traditional build with classic style, employing modern optical lens engineering. This lens is a member of the SL II lens series, meaning it employs a Central Processing Unit (CPU) as an integral part of the lens. With the CPU as part of the lens permits supporting of 3D Matrix metering plus matrix balancing of fill flash on every SLR camera, including digital DSLR cameras (only manual focus of course). Additionally, it also allows the aperture to also be under control of the command dial on the camera'.

Voigtlander 40mm f/2.0 SL-II Lens

Thanks to its aspherical lens element, the powerful 2.0 / 40 mm Ultron SLII has the ideal combination of compactness and top imaging performance, making it a durable companion for full-size SLR reportage photography.

The Ultron with Nikon connection also has a built-in CPU, which corresponds to the camera electronics and the exposure electronics informed of the set distance, which among other things leads to a finely dosed flash control.


This lens features a briilliant maximum f/2 aperture, employing a minimum 1.25' (38cm) focusing distance, plus a maximum 1:7 magnification ratio. However, it also includes a dedicated close-up lens, resulting in a minimum 0.8' (25cm) focusing distance, plus a maximum 1:4 magnification ratio. Mounted on an APS-C DSLR sensor camera, this lens becomes an 35mm equivalent to a 60mm  lens. Comes in Canon, Nikon and Pentax Flavors. May 14, 2011 ✓

Sturdy metal outer barrel
Pancake-style design
All-black design, matches pro SLR camera bodies
Ideal replacement for manufacturer's original prime lenses

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Lens stylePrime lens
Max Format Size 35mm FF  
Lens focal length40 mm  
Stabilization type No  
Camera mount Canon EF, Pentax KAF, Nikon F (FX)  
Angle of view 40  
Aperture (lens diaphragm)
Largest aperture opening F2.0  
Smallest aperture opening F22.0  
Includes aperture ring Yes  
Total diaphragm blades 9  
Total Elements 6  
Number of Groups 5  
Coatings / special elements 1 aspherical element 1 high refraction glass element  
Minimum focus distance 0.38 m (14.96")  
Maximum magnification ratio 0.14 x  
Autofocus type No  
Full time manual focus Unknown  
Lens distance scale Yes  
Depth of field scale Yes  
Physical features
Overall weight200 g (0.44 lb)  
Lens diameter 63 mm (2.48")  
Overall length 25 mm (0.96")  
Construction materials metal barrel, metal mount  
Sealing No  
Lens color Black  
Filter thread size 52 mm  
Lens hood included Yes  
Tripod collar included No  
Notes Comes bundled with a close-up lens which adjusts the maximum magnification from 1:7 to 1:4.

Lens Includes
Front & Rear Lens Caps
Close-Up Lens
Lens Hood
1-Year Warranty

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Voigtlander 40mm f/2.0 Utron SL-II Lens Reviewed by Gene Wright on . Rating: 5