Specs

• Specially made for Nikon F mount cameras
• 8 lenses in 6 groups
• F19 minimum aperture
• Minimum focus distance - 0.9m
• 9 aperture blades
• DC motor AF
• 58mm filters
• 76x83mm size
• 440g
• $159 at https://www.aliexpress.com/item/YONGNUO-YN-100mm-f-2-YN100mm-F2-0-Long-Fixed-Focus-Lens-For-Canon-DSLR-Cameras/32754912607.html

Features

• Firmware Upgradable YN100mm F2N has USB port. To maintain maximum compatibility and performance, the firmware of the lens can be updated. Please download the latest firmware from the official YONGNUO website.
• F2 Large Aperture F2 bright and large aperture helps to blur out the background and highlight the subject.
• Two Focus Modes Supported: Auto Focus (AF) and Manual Focus (MF): YN100mm F2N supports auto focus and manual focus. You can choose focus mode according to the practical shooting needs.
• 9 Aperture Blades: With 9pcs of Aperture blades, YN100mm F2N helps making rounded defocused spots, or stops down to make effect of 18 stars.
• Durable Metal Mount: YN100mm F2N adopts chrome plated and high-precision metal mount, which is consistent with the camera. The mount is wearable, corrosion-resistant and durable.
• Focus Distance Indicator: YN100mm F2N is equipped with focus distance indicator. It’s convenient for you to judge distances and the depth of field. Various Shooting Modes Supported: YN100mm F2N supports various shooting modes. The aperture and other information can be found from EXIF.
• Multilayer Coating: All series of products adopt glass optical lens and multilayer coating, which effectively helps to increase the light transmittance and inhibit backlight and glare.
• Gold-plating Technology: YN100mm F2N adopts gold-plating metal contacts to effectively increase signal conductivity and corrosion resistance.