Laowa 12mm f/2.8 specifications:
- Image circle: 24×36
- Field of view: 121.96°
- Optical formula: 16 elements, including 2 aspherical elements and 3 elements made of glass with anomalous dispersion, in 10 groups
- Number of aperture blades : 7
- Aperture range: f/2.8 – f/22
- Manual focus
- Minimum focusing distance: 0.18m
- Maximum magnification: 0.2x
- Maximum diameter: 74.8mm
- Length: 82.2mm
- Weight: circa 570g.
Venus Optics will soon announce a new lens, the Laowa 12mm f/2.8. The announcement is expected for July 30, 2016. Lens reviewing site Photozone appears to already have a copy of the lens. “Zero-D” stays for “zero distortion”.
From the conclusion:
[…] the lab-based results are quite promising. Given the extreme nature of the lens we can’t expect a uniform performance across the image field. The center performance is nothing short of outstanding straight from f/2.8 whereas the outer image region is soft at this setting. The corners/borders improve the more you stop down and they reach good to very good levels at medium apertures with a peak at f/8. Please keep in mind that the mighty Canon EF 11-14mm f/4 USM L struggled somewhat more on the EOS 5Ds R. Lateral CAs are impressively low for such a lens. Laowa claims zero image distortions (thus the “Zero-D” in the name). Well, it comes close at least. We measured a barrel distortion of just 1.1% (at a close focus distance to be fair here) which is substantially less than what we’ve seen from the competition.[via Photozone]