Lens manufacturer Cosina has provided more specification for the Macro APO-Lanthar 100mm F2. 5 lens that it first announced at CP+ in March. The E-mount lens is due to begin shipping in August 2018, and is quoted on the Japanese website as having a price of The new manual focus lens offers 1:1 macro and a closest focusing distance of 35cm.
It uses three floating lens groups for focusing to ensure optimal quality at all distances – according the Cosina – and apochromatic correction to produce high resolution and detailed images for the full frame Sony sensors.
With electric contacts the lens can transmit aperture and focusing information to the camera, which will be recorded in the EXIF data of the image as well as being used to inform the 5-axis image stabilization systems of the Sony range. The contacts also allow manual focus assistance to be triggered by turning the focusing ring.
For full specification see the Cosina website.
Macro APO-LANTHAR 110mm f/2. 5 E-Mount
Voigtlens covers the full frame image area, and achieves a maximum image reproduction of 1:1 life size with no additional attachments. In order to ensure subjects from minimum focus distance to infinity are captured with extremely high image quality, a 3-group floating mechanism is employed to adjust three optical groups according to focus distance. The 110mm focal length on full frame format ensures not only a good working distance from subjects for macro shooting, but also its angle of view for portraiture does not look too cropped in comparison with 135mm and 200mm lenses. Another attractive feature is the ability to create images with a strong out-of-focus ‘bokeh’ effect, made possible by the 110mm focal length and F2. 5 maximum aperture. This lens is a manual focus and manual aperture design, but also features electrical contacts that enable the lens settings at image capture to be included in the Exif information of the image data. Furthermore, the lens is installed with a distance encoder to enable support for 5-axis image stabilization on bodies with this feature, by providing distance to subject information used to compensate for camera shake. Focus peaking while manual focusing is also supported.
Full frame Sony E-mount with electrical contacts
Apochromatic optical design that eliminates chromatic aberrations
Optical design optimized for digital imaging sensors
Maintains high image quality at all shooting distances with a 3-group floating mechanism
Extremely solid and durable all-metal barrel
Manual focus for precise focusing
Maximum reproduction ratio of 1:1 at a minimum focus distance of 35 cm