Now in its third version, the Canon RF-mount Speedmaster 50mm f/0.95 III from Mitakon-Zhongyi is an exceptionally fast normal-length prime with enhanced flare resistance. Obviously distinguished by its f/0.95 maximum aperture, this lens excels in low-light situations and affords impressive control over depth of field. Its optical design incorporates one high refractive index element along with five ultra-low dispersion elements to produce well-corrected imagery void of spherical and chromatic aberrations. The lens's manual focus design permits working with subjects as close as 1.6' away and an 11-blade diaphragm contributes to a pleasing bokeh quality.

Full-Frame | f/0.95 to f/16    Fast Normal-Length Prime    Manual Focus Design    Depth of Field and Distance Scales    Five Ultra Low Dispersion Elements    One High Refractive Index Element    De-Clicked Aperture Ring    11-Blade Diaphragm

Normal-length prime is designed for use with full-frame Canon RF-mount mirrorless digital cameras and can also be used with APS-C models where it provides an 80mm equivalent focal length.

Fast f/0.95 maximum aperture benefits working in difficult lighting conditions and also enables extensive control over your focus position to benefit the use of selective focus and shallow depth of field techniques.

Five ultra-low dispersion elements and one high refractive index element helps to reduce chromatic aberrations and distortions throughout the aperture range for greater sharpness, clarity, and color accuracy.

Manual focus design utilizes a floating elements system to permit focusing on subjects as close as 1.6' away.

De-clicked, stepless aperture ring permits smooth, silent aperture adjustment to benefit video applications.

An 11-blade diaphragm contributes a pleasing out-of-focus quality when working with selective focus techniques.

All-metal lens barrel features engraved depth of field and focus scales. Additionally, a metal lens mount also offers increased durability between the lens and camera.

Related Questions and Answers

Q: 1. Three questions: 1.) Does this have any degree of weather resistance? 2.) Does the rear element move while focusing? 3.) How is the focus breathing, if it has any?

A: No weather resistance , rear elements move and it does have focus breathing

Q: 2. does this work with canon 90 d?

A: Yes this lens is compatible with your 90D.

Q: 3. Is this compatible with megadap autofocus adapter ?

A: Yes this would be compatible and work with a Megadap adapter such as this: https://www.bhphotovideo.com/c/product/1604791-REG/venus_optics_mtz11_megadap_leica_m_lens.html

Q: 4. When I push the shutter button it won't take a picture. I have set my canon r5 to MF. Is there something else that I need to set

A: When using manual lenses, including the Mitakon Zhongyi Speedmaster 50mm f/0.95 III Lens for (Canon RF) on the Canon EOS R5 Mirrorless Camera, go into the set-up menu and set the camera to release the shutter without lens.

Q: 5. What is the T-stop value of this F/0.95 lens?

A: F stops only. T stops not specified.

Q: 6. Is there a version for Fuji X ?

A: No. A adapter must be set in place in order to use the lens. Please review the following item Fringer EF-FX Pro II Lens Mount Adapter for EF- or EF-S-Mount Lens to Fujifilm X-Mount Camera BH #FRFX2 • MFR #FR-FX2 https://bhpho.to/2Ltcvn5

Q: 7. Is this compatible with megadap adapter?

A: Yes this would be compatible and work with a Megadap adapter such as this: https://www.bhphotovideo.com/c/product/1604791-REG/venus_optics_mtz11_megadap_leica_m_lens.html

Q: 8. Will this work with an early 1960s vintage m3? Where is it made?

A: As Bill mentioned, this would work on a Leica M3. The lens is manufactured in China.

Q: 9. Does the Lens mount on the Z6 with the mount Nikon provided? I hope not.

A: This lens is a Z mount and will attach directly to the Z6 without an adapter.

Q: 10. Does this lens provide focal plane illumination that is sufficiently near telecentric to allow the f/2.8 pixel condensers in the Canon focal plane to work, out to the corners of the image?

A: The Mitakon Zhongyi Speedmaster 50mm f/0.95 Lens for Canon EF (B&H# MI50095CEF), while non tele-centric, will allow for cameras possessing a Canon EF mount to attain critical focus throughout the focal plane. Naturally, there is some curvature to that. As is always the case with fast prime lenses, the center is sharpest, but by about f/2 the image circle in general is sharp enough for typical photographic portraiture usage in even the non central region of the frame. Of course, whether or not that is enough for your usage will depend on your needs and preferences. Stop down to f/8 to achieve the wider depth of field that you need if you want the corners to be their sharpest despite natural field curvature.