Sigma 85mm f/1.4 DG HSM Art Lens Canon EF to RF Adapterlooked to create a peak portrait prime with the 85mm f/1.4 DG HSM Art Lens, and they delivered an optic with high performance, a large f/1.4 aperture, and a variety of technologies. Available here with a Canon EF mount, this lens offers a super-fast f/1.4 aperture that is great for getting images with an exceptionally shallow depth of field and smooth bokeh. It also uses two SLD elements, one anomalous partial dispersion/high-refractive index element, and one aspherical element that minimize aberrations and ensures a crisp, clear image. A Super Multi-Layer coating helps by suppressing flare and ghosting.

For operation, a Hyper Sonic AF motor provides fast, accurate focusing and a large focusing ring permits manual focus override for making fine adjustments. A rounded 9-blade diaphragm also helps create round, smooth bokeh. It is made from a thermally-stable composite material that is light and durable and it has a brass bayonet mount. Additionally, it is fully compatible with Sigma's USB Dock.

Adapts EF Lens to RF Body    EF-Mount Lens/Full-Frame Format    Aperture Range: f/2.8 to f/22    Two Low Dispersion Elements    One Aspherical Element    Super Multi-Layer Coating    Hyper Sonic AF Motor, Manual Override    Rounded 9-Blade Diaphragm

As part of the Art line within Sigma's Global Vision series, this lens' is designed to achieve truly notable optical performance and is ideally suited for creative and artistic applications.

This short telephoto 85mm f/1.4 prime lens is designed for full-frame format Canon EF-mount cameras, and can also be used with APS-C models where it will provide a 136mm equivalent focal length.

Fast f/1.4 maximum aperture is well-suited for working in low-light conditions and also provides greater control over the focus position when using shallow depth of field techniques.

Two SLD elements, one element with a high rate of anomalous partial dispersion and a high index of refraction, and one aspherical element have been incorporated within the lens design to correct for chromatic aberrations throughout the entire focusing range and help to ensure high image sharpness, clarity, and contrast regardless of focus point or aperture setting. This optical design also helps to control distortion and limit vignetting.

A Super Multi-Layer Coating has been applied to lens elements in order to minimize lens flare and ghosting and contribute to producing contrast-rich and color-neutral imagery, even in backlit conditions.

The integrated HSM (Hyper Sonic Motor) realizes quick and quiet autofocusing, which is further complemented by an optimized AF algorithm to produce smoother focusing performance. The HSM also permits full-time manual focus control simply by rotating the focus ring at any time.

A rounded nine-blade diaphragm helps to produce an attractive out-of-focus quality.

The lens is constructed using a Thermally Stable Composite (TSC) material, along with traditional metals, for greater precision and use in wide temperature variations.

The bayonet mount is constructed from brass for ensured accuracy and durability.

This lens is compatible with the optional Sigma USB Dock for fine-tuning different lens characteristics and updating its firmware.

Related Questions and Answers

Q: 1. Does this lens have image stabilization?

A: It does not have image stabilization.

Q: 2. What is the outer diameter of the lens? For use with a clamp on ring for a matte box.

A: According to Sigma's spec it's 94.7mm. Filter size is 86mm and the focus ring is about 4mm on each side, so it makes sense.

Q: 3. Will Sigma make Sony A mount of this lens ? I think it's nice to mount on A99 II : )

A: Possibly. We have no information from Sigma at this time. Try contacting SIGMA directly for details regarding future product releases:Marketing Department: 631-227-2017 https://a href= http://www.sigmaphoto.com/about-sigma/contact-us/ target= _blank www.sigmaphoto.com/about-sigma/contact-us//a

Q: 4. is it made in Japan?

A: Japan

Q: 5. Have the issues with this lens and the 5D4 been fixed?

A: Thank you for your interest in Sigma products. We are not aware of any particular issues with any Canon camera bodies.

Q: 6. Is the manual focus on this lens mechanical or fly by wire?

A: The lens is Both Auto Focus and Manual Focus by rotating the large Focus ring up front.

Q: 7. Does this fit with Canon EOS rebel T6I?

A: Yes, this lens is compatible with the T6i. Since the T6i has a crop factor of 1.6, the effective angle of view will be similar to 135mm.

Q: 8. Is the lens image stabilised?

A: Thank you for your interest in Sigma products. This lens is not stabilized but it does work with the camera Image Stabilizer.

Q: 9. With this Lynns accommodate the I auto focus feature?

A: This lens is auto focus and will do so on a Sony E mount camera.

Q: 10. Does it come with a Dock? Your competitor offers it with one.

A: No dock is included. it is an optional accessory. In the Box:Sigma 85mm f/1.4 DG HSM Art Lens for Nikon FLH927-02 Lens HoodLens CaseLimited 1-Year Warranty