AF 45mm F1.8 FE
AF 45mm F1.8 FE
AF 45mm F1.8 FE
AF 45mm F1.8 FE
AF 45mm F1.8 FE
AF 45mm F1.8 FE

AF 45mm F1.8 FE

Prime · Sony E

TINY BUT PREMIUM

Focal Length
45mm
Aperture
F1.8–F22
Min Focus
0.45 m (1.48ft)
Filter Size
49.0mm
Weight
162g

Clearer, wider – the new standard in lens design

Tiny But Premium

With less distortion than 35mm lenses and a wider angle than 50mm, the AF 45mm F1.8 FE opens up a range of photographic styles and themes. This lens will deliver the high contrast and dimensionality typical of specialized lenses while retaining spectacular resolution thanks to an outstanding optical design. Photographers can take advantage of the bright F1.8 aperture, delivering blurry backgrounds, and the 9 aperture blades that produce striking sunstar effects, adding creativity to every picture. In addition, the lens is compact (5.61cm) and light (162g) so it is highly portable.


  • 45mm is the new gold standard when it comes to field of view, providing the 53 degree angle that most naturally fits the human field of vision.

    The Samyang AF 45mm F1.8 FE has been designed to provide the most suitable angle of view to imitate the natural human field of vision (53 degrees), and its design sets a new standard in lens craftsmanship. Freed from the design limitations of lenses for reflex cameras, and embracing the strengths of optical designs for mirrorless cameras, Samyang brings you a new breed of standard lens.

    [Samyang’s Guide to Achieving the Optimal Angle of View]

    Samyang’s Guide to Achieving the Optimal Angle of View

    The perfect spacing and distance are always necessary when shooting all kinds of subjects, including people, to give them a proper relationship with the beautiful space around them. So, what’s the exact distance that helps you best appreciate a work of art, or a photo?

    The correct answer is the diagonal length of the full frame of a subject.

    표준화각 자료 이미지
    표준화각 자료 이미지

    The best standpoint from which to appreciate the full view of a subject is the distance of the diagonal length of the subject frame. This wider angle is superior to standing closer at a 50 degree angle to get a more detailed view. This notion of an ideal distance or view point is also applicable in the world of photography.

    For still images, keeping a distance equal to the diagonal length of the full image surface is recommended. The full frame sensor of a digital camera is 36 x 24mm and the diagonal length is 43.26mm so any distance close to this number is nearer to the ideal than the currently accepted industry standard of 50mm.

    Back when film cameras were common, 45mm was the industry standard and this continued as reflex cameras needed extra space to fit a mirror. However, as mirrorless cameras become more popular again, there has been a need to return to this industry standard…which is the impetus for the Samyang AF 45mm F1.8 FE. With less distortion than a 35mm lens and wider angles than a 55mm lens, the Samyang AF 45mm F1.8 FE is a perfect lens for portraits, landscapes, architecture photography, and pictures of pets.



  • A new era in lens design –
    A lens made especially for mirrorless cameras

    Invented in 1888, the Double Gauss lens design is still used today, but it is not ideal for mirrorless cameras, which is why Samyang has developed a new kind of lens that smoothes over many of the weaknesses of mirrorless cameras through cutting edge lens technology, while enhancing the high resolution offered by mirrorless cameras. So try the Samyang AF 45mm F1.8 FE to experience the incredible resolution for which specialized prime lenses are known, and take advantage of the high pixel count of your mirrorless camera with its innovative lens design.


  • Delivering closer, clearer pictures even at a close focus distance of 45cm

    With a minimum focus distance of 45cm, the Samyang AF 45mm F1.8 FE offers you a feeling of intimacy which is crucial to taking close up pictures of babies and pets. At only 162g, the AF 45mm F1.8 FE is so light you can carry it with you anywhere and everywhere.


  • Achieve beautiful blurry backgrounds with a bright F1.8 aperture

    The bright aperture of the F1.8 allows many different expressions of photographic depth. A shallow depth of field provides the beautiful blurry background that highlights a subject and emphasizes its liveliness, while also providing a range of perspectives when portraying a variety of subjects like babies, pets, and food.


  • Weighing only 162g, it’s a perfect lens for small, light, mirrorless cameras.

    This light, compact lens complements the strengths of mirrorless cameras. With 40 years of excellence in lens design, Samyang has created an optic that will give the photographer clear resolution without weighing them down. It’s a lens so light that it will fit in the palm of your hand, and so quiet that you can enjoy it in any situation.


  • The iris mechanism uses 9 aperture blades to create brightly defined sunstars.

    With 9 aperture blades, this lens offers consistent, beautiful bokeh, and clearly defined sunstars when the aperture is stopped-down. Whether it’s day or night, those sunstars will add extra panache to any photo.


  • Fast, precise and quiet auto focusing

    Never miss another unforgettable moment with this fast, smooth autofocus with zero vibrations. With its Linear Stepping Motor technology, you can experience consistent, internal autofocusing, which is fast and stable.

Product Specifications

Model Name AF 45mm F1.8 FE
Aperture Range F1.8 ~ 22
Lens optical Construction 7 Elements in 6 Groups
Special lens ASP 2, ED 1
Coating UMC
Minimum Focusing Distance 0.45 m (1.48ft)
Magnification Ratio x 0.12
Diaphragm Blades 9
Filter Size 49.0mm
Maximum Diameter 61.8mm
Mount Sony FE
Angle of view Full Frame 52.31 ˚
APS-C 35.31 ˚
Length 56.1mm
Weight 162g
AF Motor Linear STM

MTF / Optics

MTF / Optical Diagram 1MTF / Optical Diagram 1

Moments Captured with This Lens

  • Krzysztof Karpiński

    Krzysztof Karpiński

    SAMPLE PHOTO

  • AF 45mm F1.8 FE

    AF 45mm F1.8 FE

    SAMPLE PHOTO

  • AF 45mm F1.8 FE

    AF 45mm F1.8 FE

    SAMPLE PHOTO

  • AF 45mm F1.8 FE

    AF 45mm F1.8 FE

    SAMPLE PHOTO

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