Venus Optics has introduced the world’s first Fujifilm GFX adapter to their converter line-up and it's compatible with Nikon and Canon Full Frame lenses.

Unlike other GFX adapters currently available, the Magic Format Converter enlarges the image circle of Nikon and Canon full frame lenses so problems with degraded peripheral sharpness and vignetting you can get when using converters that don't adjust the image circle are prevented.

This makes is particularly useful when using ultra-wide angle lenses. For example, when the MFC is used with the Laowa 12mm f/2.8 Zero-D lens, it will roughly become a 17mm f/4 lens when paired with the Fujifilm GFX-50S. The angle of view will be around 116° (equivalent to approximately a 13mm lens in the 35mm format), making it one of the widest lens available for the GFX system.

The adapter has a focal length multiplier of 1.4x and reduces the maximum aperture by 1-stop.

The Laowa Magic Format Converter (MFC) will come with 2 variants, Canon EF to Fujifilm G & Nikon AI to Fujifilm G. They are expected to start shipping in July 2017 and pricing will be announced at a later date.

Earlier this year, Venus Optics also announced the Magic Shift Converter (MSC) which shares the same patented optics system as the MFC. The MSC can expand the image circle of full frame lenses and convert them into a shift lens for use on Sony Full Frame E-mount cameras. The MSC is expected to be ready to ship in June.