A portrait-length prime featuring a compact design, the Yongnuo YN 50mm f/1.8 DA DSM PRO Lens is designed for APS-C-format FUJIFILM X-mount mirrorless cameras. The lens's bright f/1.8 design suits working in low-light conditions and also enables increased control over depth of field for isolating subject matter. The optical design incorporates low dispersion and high reflective lens elements to reduce chromatic aberrations and color fringing, and balancing the optics is a DSM autofocus system, which promotes fast and quiet focusing performance to suit both photo and video applications.

The lens barrel is made with precision-machined aviation-grade aluminum alloy for durability and long life. The lens features a function selection switch that allows the main ring to control focus or aperture, and a large OLED screen displays aperture status in large, easy-to-read numbers. A weatherproof seal keeps dust and water from entering the camera. The lens also has a USB-C port for installing firmware upgrades for any future camera designs.

APS-C Format | f/1.8 to f/16    75mm (Full-Frame Equivalent)    Autofocus with Digital Stepping Motor    Function Selection Switch    OLED Aperture Display Screen    Multicoating and Resistance Coating    9-Blade Diaphragm    USB-C Interface for Firmware Upgrades

• Portrait-length prime designed for APS-C-format FUJIFILM X-mount mirrorless cameras.
• Provides a 75mm full-frame equivalent focal length.
• Bright f/1.8 aperture design well-suited for low-light conditions.
• SW function selection switch allowing aperture or focus control from the lens.
• OLED screen showing aperture status in large clear numbers.

• 9-blade diaphragm enabling a soft bokeh effect.
• High-resolution optical design achieving high clarity and color accuracy.
• Digital Stepping Motor (DSM) offers notably quick, quiet, and precise autofocus performance.
• Chrome-plated metal lens mount is durable and accurate for a secure fit with the camera body.
• Integrated USB-C port for firmware updates.

Related Questions and Answers

Q: 1. can you use this lens with a nikon d3100?

A: Yes it can. I am able to use it on my D3000 and my D3300.

Q: 2. Hi!It is compatible with a canon eos rebel T2i?

A: On Amazon it says that the lens is for rebel series camera so it should be fine with T2i.

Q: 3. Will this work with the Canon EOS 80D?

A: Yes, this lens is compatible with the Canon 80D.

Q: 4. Does this lens use a STM or USM motor?

A: These use something similar to Canon's Micromotor USM. Micromotors are also an older, lower cost type of motor for autofocus lenses. The mechanics of a micromotor is an electric motor driving a gear train. They tend to make a little more noise than a USM. It's less suitable for video but takes sharp photos.

Q: 5. What lens cap would be the best to replace for the previous lens cap since I lost it

A: You can use any 52mm cap such as this: https://www.bhphotovideo.com/c/product/807037-REG/Sensei_lc52_52mm_Center_Pinch_Snap_On.html

Q: 6. Wil this lens work with the Rebel T5?

A: Perfectly, canon mount match.

Q: 7. Probably a dumb question... I’m new to the camera scene .... but would this lease be compatible with the Black magic Pocket 4K? Or would I need to buy some sort of adapter?

A: You would need an adapter such as this Commlite: https://bhpho.to/3wy4kLg But adapting lenses can be problematic. I would recommend buying this 45mm Olympus lens instead: https://bhpho.to/3dEI0XP

Q: 8. What range of wavelengths of light LESS THAN 400 nm does this lens transmit at least 50% of? At least 25% of?

A: Unfortunately, the manufacturer does not rate the lens for IR absorptance. However, as there is no IR coating, such near IR in particular should be expected to pass with little attenuation.

Q: 9. Is this compatible with rebel sl1?

A: Yes. It's an EF mount lens so it should be compatible with the SL1.

Q: 10. How would this compare to the Sony 50mm 1.8?

A: The Sony 50mm f1.8 lens is much higher in quality and currently lower in price than the Yongnuo YN 50mm f/1.8S DF DSM Lens for Sony E.