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Hasselblad E-mount

From Alfawiki
Adapted from the English Wikipedia article Hasselblad E-mount, available under CC BY-SA 4.0Updated 29 November 2025
Sony E-mount
Company typeLens mount system
IndustryPhotography equipment
Founded2010
FounderSony
Headquarters
Tokyo
,
Japan
ProductsLens mount system for mirrorless cameras and camcorders

The E-mount is a lens mount system created by Sony specifically for their NEX ("New E-mount eXperience") and ILCE lines of camcorders and mirrorless cameras. It serves as a complement to Sony's α mount, facilitating the production of more compact imaging devices while still supporting 35mm sensor formats. Notable design attributes include:

  • Eliminating mechanical aperture and focus mechanisms to reduce complexity.
  • Shortening the flange focal distance to 18 mm, significantly less than Sony’s prior 44.5 mm mounts.
  • Decreasing the flange diameter.
  • Employing software-based corrections to address vignetting.

Due to the reduced flange focal distance, optical viewfinders are not feasible, so all cameras utilizing the E-mount incorporate electronic viewfinders.

History

The E-mount system was initially introduced on Sony’s consumer-oriented Sony α models, specifically the NEX-3 and NEX-5, both featuring APS-C sensors. Its application expanded into camcorders with the launch of the Sony Handycam NEX-VG10. In August 2011, Sony released updated models such as the Sony NEX-5N, the advanced prosumer Sony NEX-7, and the Handycam NEX-VG20. The E-mount also made its entry into the 35 mm video segment through the Sony NEX-FS100.

The Hasselblad Lunar was the first third-party camera adopting the E-mount, revealed at Photokina in September 2012 and launched in early 2013.

September 2013 marked Sony’s introduction of the inaugural ILCE series camera, the Sony α3000. Shortly afterward, in October 2013, full-frame sensor models appeared with the release of the Sony α7 and Sony α7R. On April 19, 2017, Sony unveiled its professional-grade mirrorless model ILCE-9, known as the Sony α9, representing a high-performance imaging system.

In September 2017, Sony ventured into premium digital cinema cameras with its VENICE model, capable of capturing footage in 6K resolution with 16-bit raw data.

Available bodies

Below is a table detailing Sony E-mount camera models along with their key specifications.


Third-party lens manufacturers

On February 8, 2011, Sony published the technical specifications for the E-mount lens interface, allowing external manufacturers to create lenses compatible with NEX cameras without incurring royalty fees. Since April 2011, these mount details have been accessible to registered companies. Licensing requires approval from Sony and execution of a non-disclosure agreement.

Producing full-frame manual focus prime lenses without electronic components is comparatively straightforward and cost-effective relative to electronic full-frame autofocus lenses. This has encouraged smaller firms to develop full-frame prime lenses for the E-mount system. A range of affordable manual primes offering sharp image quality and wide apertures are currently available.

Manufacturers of third-party lenses

Adapting lenses for Sony E-mount

Thanks to the short flange focal distance characteristic of the Sony E-mount, a wide variety of lenses can be adapted for use, although crop factors apply when using APS-C or Super-35mm sensors. Many of Sony's newer mirrorless cameras incorporate in-body image stabilization, allowing stabilization functionality with any adapted lens, regardless of its brand or manufacturing date.

Most manual lenses can be connected using straightforward ring adapters—for example, lenses with Canon FD, Minolta MC/MD, or Leica M mounts. However, manual focus lenses that transmit Exif information necessitate more advanced adapters equipped with electronic contacts.

When adapting autofocus lenses to earlier E-mount bodies such as the Sony α6000 or early Sony α7 models, users often experienced focus hunting or failure to achieve focus due to limitations in those camera bodies. These issues have been mitigated through improved adapter technology and faster autofocus systems in more recent models like the Sony α6500 and Sony α9.

Sony LA-EA adapters

The majority of A-mount lenses are compatible with Sony’s LA-EA series adapters—LA-EA1, LA-EA2, LA-EA3, LA-EA4, and LA-EA5—which provide electronic communication and mechanical aperture control. This enables aperture adjustment directly from the camera body along with automatic exposure and Exif data support.

  • LA-EA1: Designed for APS-C sensors; initially supported only autoexposure but later firmware updates enabled autofocus for lenses equipped with AF motors (SSM and SAM); screw-driven lenses require manual focusing.
  • LA-EA2: APS-C format; offers phase-detection autofocus through a translucent mirror that directs 30% of incoming light to a dedicated AF sensor.
  • LA-EA3: Compatible with full-frame sensors; autofocus functionality is available for lenses with AF motors (SSM and SAM); manual focus is necessary for most screw-driven lenses.
  • LA-EA4: Full-frame compatible; employs phase-detection autofocus with most A-mount lenses by utilizing a translucent mirror that diverts 30% of light to the AF sensor.
  • LA-EA5: Supports full-frame sensors; provides autofocus for most A-mount lenses; screw-driven lens support is limited to newer camera bodies.

Minolta non-Alpha mount lenses and Alpha mount Power Zoom/Xi lenses are unsupported. Both the LA-EA2 and LA-EA4 include fifteen phase-detection autofocus points, with three center points being cross-type. The tripod mount on these adapters is fixed in position. Aperture adjustment is disabled during video recording. The SLT design’s translucent mirror reflects one-third of the light toward the autofocus sensor, resulting in approximately a 1/2 stop reduction in light reaching the sensor, which can affect image quality under low-light conditions.

Techart offers a unique autofocusing adapter featuring a motorized flange that moves along the optical axis. This adapter uses a Leica M-mount on the lens side but can accommodate nearly any SLR lens through additional stacked adapters.

Sony LA-EB adapters

Introduced in late 2019, this adapter facilitates mounting of B4-mount lenses while maintaining electronic connectivity.

  • LA-EB1: Designed exclusively for Super 16 format cameras.

List of adaptable lens mounts

Several third-party adapters enable compatibility of these mounts with Sony E-mount cameras:

Sony E-mount Adapters Featuring Focal Reducers

A focal reducer compresses the image circle while enhancing the effective aperture, enabling the use of lenses designed for other systems with longer flange distances on Sony E-mount cameras. These adapters do not support lenses originally designed for the E-mount.

  • Metabones Speed Booster – converts full-frame SLR lenses to APS-C format, 0.71x reduction
  • Metabones Speed Booster Ultra – adapts full-frame SLR lenses to APS-C, 0.71x reduction
  • Zhongyi Lens Turbo – facilitates full-frame SLR lenses on APS-C bodies, 0.71x reduction
  • Kipon Baveyes Ultra 0.7x Adapter – adapts Medium Format SLR lenses to Sony E full-frame (announced in 2016)
  • Kipon Baveyes L/M-S/E 0.65x – converts Leica M-mount lenses for Sony APS-C use (announced in 2016)

See also

References

Related profiles

HHasselblad A-mountSSony SEL-1855SSony SEL-16F28SSony SEL-18200
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