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40mm F2.8 Yongnuo lens
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    Specs

    • Made for Nikon F cameras
    • 6 lenses in 4 groups
    • F22 min aperture
    • Minimum focus distance - 0.3m
    • DC motor AF
    • 58mm filter
    • 74x45mm size
    • 130g

    Features

    • Aspheric Lens: YN40mm F2.8N have aspheric lens, which effectively compensate aberrations.
    • Firmware Upgradable: YN40mm F2.8N has USB port. To maintain maximum compatibility and performance, the firmware of the lens can be updated. Please download the latest firmware from the offical YONGNUO website.
    • F2.8 Large Aperture: F2.8 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): YN40mm F2.8N supports auto focus and manual focus. You can choose focus mode according to the practical shooting needs.
    • 6pcs Aperture: With 6pcs of Aperture blades, YN40mm F2.8N helps making rounded defocused spots, or stops down to make effect of 12 stars.
    • Durable Metal Mount: YN40mm F2.8N adopts chrome plated and high-precision metal mount, which is consistent with the camera. The mount is wearable, corrosion-resistantand durable.
    • Focus Distance Indicator: YN40mm F2.8N is equipped with focus distance indicator. It’s convenient for you to judge distances and the depth of field.
    • 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: YN40mm F2.8N adopts gold-plating metal contacts to effectively increase signal conductivity and corrosion resistance.

    MTF

    image

    sample1047.jpg
    602 x 554 - 43K
    sample1048.jpg
    442 x 433 - 31K
  • 3 Replies sorted by
  • Review

    In short - lens is good and sharp, but AF is slow and noisy.

    image

    https://petapixel.com/2017/10/18/review-yongnuo-40mm-f2-8-pancake-lens-nikon-bad/

  • Tried one not long ago. Image was good, focus also worked not so bad.