Yongnuo
50mm ƒ/1.8 DA DSM Pro
YN50mm F1.8X DA DSM Pro
Yongnuo 50mm ƒ/1.8 DA DSM Pro is a 50mm prime lens for the Fujifilm X mount, equivalent to 75mm on full frame, with a maximum aperture of ƒ/1.8 and autofocus. It weighs 387 g.
Optics
- Type
- Prime · Photo
- Focal length
- 50mm (75mm eq.)
- Angle of view
- 32.4°
- Aperture
- ƒ/1.8 – ƒ/16
- Blades
- 9
- Aperture ring
- —
- Construction
- 11 el. / 8 gr.
- Designations
- DA · DSM
- Designed for
- APS-C
Focus
- Type
- Autofocus, stepping motor
- Minimum distance
- 0.45 m
- Magnification
- 0.15× (1:6.7)
Size and mount
- Diameter × length
- 68 × 85 mm
- Weight
- 387 g
- Filter
- 58 mm front
- Mount
- Native X mount
Features
- Yes
- Sealed mount, Electronic contacts
- No
- —
History
- Maker
- Yongnuo · CN
- Announced
- 2023-07
- Status
- Current
X = Fujifilm X mount, DA = APS-C, DSM = digital stepping motor ("Driving system: Digital stepping motor" in the official spec sheet). OLED aperture display and SW switch that sets the control ring to aperture (I) or focus (II); Yongnuo lists "Aperture Ring Operation: Support", but it is a switchable control ring, so apertureRing is left unset. Aluminium alloy shell, USB firmware upgrade. Low-dispersion, high-refractive and aspherical elements (counts not given). Official values are marked "about" (MFD 0.45 m, magnification 0.15x, 68 x 85 mm, 387 g). Yongnuo's own site (hkyongnuo.com) has no lens page; the product link is Yongnuo's official store.