Yongnuo YN 50 mm f/1.8 DF DSM Lens For Sony E

Yongnuo YN 50 mm f/1.8 DF DSM Lens For Sony E: Quiet focus for portraits and street

A quiet Digital Control Stepping Motor is the defining feature of the Yongnuo YN 50 mm f/1.8 DF DSM Lens For Sony E, delivering fast start-stop response and precise, low-noise focusing. This standard prime pairs a 50 mm focal length with a bright f/1.8 maximum aperture, making it a straightforward option for Sony E-mount users who want a compact lens for everyday subjects. For portraits, the wide aperture gives you control over depth of field, so you can draw attention to a face against a softer background. On the street or while travelling, the standard perspective works well for people, details and scenes without the bulk of a zoom. The aperture is also useful when available light is limited, and the quiet focusing motor makes the lens relevant for video as well as still photography. Inside, a low-dispersion element addresses colour fringing, while a nano multi-layer coating is intended to reduce flare and ghosting when bright light enters the frame. It’s a focused set of features: a fast aperture, quiet focusing and a familiar standard-prime view in one interchangeable lens.

Why this focal length works

• Standard-prime perspective: The 50 mm view works naturally for portraits, travel scenes and street photography. It keeps framing direct, without adding zoom range or extra controls to manage.
• f/1.8 to f/22 aperture range: Open the aperture for more control over background blur and low-light shooting, or stop down when you want a deeper area in focus.
• Digital Control Stepping Motor: The DSM drive focuses with a quiet, precise action and quick start-stop response. That makes it useful when focusing noise would distract during video recording.
• Low-dispersion element and nano coating: The low-dispersion glass is there to reduce colour fringing, while the coating suppresses flare and ghosting. Both details matter in scenes with strong light and contrast.
• 45 cm minimum focus distance: Focus as close as 45 cm for tighter framing of a subject or detail. That gives the standard prime a useful close-up option without changing lenses.
• Nine-blade diaphragm: The nine blades shape the aperture opening and contribute to the character of out-of-focus highlights, especially when shooting portraits at a wide setting.
• 395 g construction: At 395 g, this is a relatively light prime to carry alongside a Sony camera. Its compact, lightweight format is a welcome match for walking and travel setups.

On your camera

The lens uses the Sony E mount and is specified for full-frame Sony cameras. Its DSM focusing motor provides autofocus, with a quiet operating sound that’s useful for video as well as photography. Since it covers the full-frame image format, it’s a direct match for Sony E-mount full-frame bodies; the 50 mm focal length retains its standard-prime framing on those cameras.

What's Included

• Yongnuo YN 50 mm f/1.8 DF DSM Lens For Sony E

Technical Specifications

• Brand: Yongnuo
• Model: YN 50 mm f/1.8 DF DSM
• Type: Standard prime interchangeable lens
• Mount: Sony E
• Focal length: 50 mm
• Maximum aperture: f/1.8
• Minimum aperture: f/22
• Optical construction: 11 elements in 8 groups
• Diaphragm blades: 9
• Minimum focus distance: 45 cm
• Filter size: 58 mm
• Weight: 395 g