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NatureTTL's Matthew Saville compares three of the most popular ultra-wide astrophotography prime lenses out there: The Samyang/Rokinon 14mm F2.8, the Samyang/Rokinon 14mm F2.4, and the Sigma 14mm F1.8 Art.
Samyang Europe has introduced the SFH-14 filter holder for its 14mm 1:2.8 ED AS IF UMC lens. Along with the holder, three rectangular filters will be manufactured by Cokin. The SFH-14 will come in standard and V-DSLR cine versions. The holder comes with double slideways to use one or two filters at the same time and can be used both vertically and horizontally. Learn more
Samyang has announced that it will be making five full frame lenses in E mount, which will be the first third party optics compatible with the A7 and A7R. The lenses are all based on existing designs, namely the 14mm f/2.8 ED AS IF UMC, 24mm f/1.4 ED AS IF UMC, 35mm f/1.4 AS UMC, 85mm f/1.4 AS IF UMC, and the T-S 24mm f/3.5 ED AS UMC tilt-and-shift. All feature manual focus and aperture operation, and will be available within 2 months. As these are essentially SLR lenses with an adapter tube permanently fitted, they won't offer any of the size advantages achievable by 'native' lenses.
Rokinon has announced the T-S 24mm F3.5, a wideangle perspective control lens, for release in May 2013. Rokinon rebadges and distributes Samyang lenses for the US market, and this lens first appeared at Photokina 2012 as the Samyang T-S 24mm 1:3.5 ED AS UMC, but without a specific date for launch. The lens features manual focus and aperture setting, offers up to 12mm of shift and 8.5° of tilt, and is designed for full frame cameras. It'll initially be available in Canon, Nikon and Sony mounts, at an RRP of $1299.99.
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The Handevision Iberit 35mm F2.4 is a budget manual-focus prime lens for Leica's M-mount, and a slightly-less-budget alternative for Fujifilm X-mount and Sony E-mount photographers. We've been trying it out for a few days.