Viltrox AF 20mm F2.8 Lens Review: An Affordable Ultra-Wide Option

Viltrox AF 20mm F2.8 Lens Review: An Affordable Ultra-Wide Option

Looking for an affordable full-frame lens? The Viltrox AF 20mm f/2.8 might be just what you need. Priced at $158, it offers great value while delivering ultra-wide-angle shots. In this review, we'll look at the lens's performance, build quality, image quality, and more. Whether you're a videographer or a photographer, this lens is worth considering. Let's see if it lives up to the hype!

Performance and build quality

 The Viltrox AF 20mm f/2.8 may not be the most premium lens out there, but it holds up well in terms of construction. Despite its lightweight construction, the lens feels solid and durable. The plastic focus ring rotates smoothly, although the manual focus response is a bit slow. In terms of autofocus, the lens can be a bit sluggish in single-shot mode, but it picks up the pace in continuous autofocus mode. The lens also has a small 52mm filter thread, which requires thin filters to prevent physical vignetting. Overall, the build quality is commendable considering its affordability.

Image quality and performance


Sharpness CENTER
Center sharpness
Sharpness edge
Edge Sharpness
sharpness compare
Center sharpness is better at the full open aperture of F2.8, and edge sharpness is at its best when contracted to F5.6.



Vignetting is more noticeable without profiles, but video mode works with Sony and Nikon bodies to correct Vignetting, and photo mode can be easily corrected using profiles.



Without using a profile, there is slight pincushion distortion in the distortion control, which can be corrected in post-processing by using a profile.


20mm F2.8 dispersion in the case of shooting strong contrast objects without using profile is prone to dispersion, it is recommended to shrink the aperture in the outdoors


Proximity, dark environment will produce flare, long distance no obvious flare


Coma isn't great for professional stargazers, but for entry-level enthusiasts, the 20mm wide angle can be used as a backup lens


Breathing effect is a detrimental factor in video shooting that affects picture stabilization, which is milder with the 20mm. The video will be shown at the end of the article

    Tips and considerations

    To get the best results with the Viltrox AF 20mm f/2.8 lens, it's recommended to stop down the aperture. This will ensure optimal sharpness and reduce potential distortion. It's also important to be aware of the lens' vignetting, especially when using filters. Choosing thin filters can help minimize this problem. In addition, the lens comes with a plastic hood that can help reduce purple flare and excessive white light. Keep these tips in mind to get the most out of this lens.


    The Viltrox AF 20mm f/2.8 is undoubtedly an affordable option for those in need of an ultra-wide-angle lens. With its solid build quality and impressive image performance, it offers great value for money. While it does have some distortion and vignetting issues, these can be mitigated by stopping down the aperture and being mindful of filter usage. Whether you're into videography or photography, this lens is definitely worth considering. Step up your creative game with the Viltrox AF 20mm f/2.8 lens!


    Sample photos

    Thanks to photographer Bastian Kratzke for the samples!

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    1 comment

    This looks fantastic! Will we see a version for Fujifilm X mount?

    James Newman

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