Voigtlander FE 40mm f2 SEPTON Sony

The SEPTON 40mm F2 Aspherical is a compact high quality manual focus lens with extremely low distortion. Covering a full-frame image circle, the optical design is optimized for the image sensor of the Sony E system cameras.　 The lens construction consists of seven elements in six groups, using one aspherical element and one abnormal partial disipersion element.   Despite its compact size, the lens achieves very low distortion.  The lens offers reliable optical performance from maximum aperture and gentle very out-of-focus bokeh effect.

Beautiful bokeh effect with 10 aperture blades

A 10-element aperture is used to make the opening formed by the diaphragm blades closer to a circular shape. Out-of-focus areas are rendered naturally, and point light sources are rendered with a soft, rounded bokeh effect.

Information communication with the body by electronic contacts

This lens is equipped with electronic contacts and realizes communications between the lens and the body. In addition to Exif information 5 axis in body image stablization is possible and magnified finder display.

Designed exclusively for the Sony E mount

Optics optimized for the image sensors of mirrorless cameras with the Sony E mount are implemented. The lens has a full-frame image circle and can be used with both full-frame and APS-C size  mirrorless cameras.

Manual focus for reliable focus operation

Adopting a full-metal helicoid unit processed and adjusted with high precision and high-quality grease that produces an appropriate torque, focusing with a smooth operation feeling is realized. It enables fine focus adjustment.

Versatile angle of view

The angle of view of the 40mm focal length is equivalent to 60mm on an APS-C size camera, making it a versatile lens that can be used as a standard lens on both full-size   and APS-C size  cameras.

 supported E models and firmware
Please use the latest firmware because the performance may not be as good as the firmware listed or some of the functions may be limited.