Samyang's budget manual focus 14mm f/2.8 — the go-to astrophotography lens for beginners worldwide.
The Samyang 14mm f/2.8 ED AS IF UMC is a manual-focus ultra-wide full-frame prime available in multiple mounts — the Canon EF version provides electronic aperture control from the camera body. The bulbous front element prevents conventional screw-in filter use; a specialist 150mm magnetic filter system is required for ND and polariser use. At approximately 552g (Canon EF) it is moderate. No autofocus. UMC (Ultra Multi Coating) reduces flare at wide apertures.
The optical design uses 14 elements in 10 groups including ED, aspherical, and IF (Internal Focus) elements. Six aperture blades. No front filter thread — the bulbous front element requires specialist filter systems. At approximately 552g (Canon EF version) the lens is moderate. Minimum focus distance of 0.28m. No autofocus — fully manual focus. f/2.8 maximum aperture.
The 14mm ultra-wide perspective on full-frame covers 114° diagonal field of view, primarily used for astrophotography, interior architecture, and landscape where maximum field of view is required. At f/2.8 and 14mm, astrophotography exposures are practical — the ultra-wide field captures large Milky Way sections, and manual focus set to the hyperfocal distance requires no adjustment between frames. Barrel distortion at 14mm is present but correctable in post-processing for a rectilinear design.
On the used market the Samyang 14mm f/2.8 is very affordable for an ultra-wide full-frame prime. Condition checks: front element for marks — the bulbous element has no filter protection — focus ring smoothness, and aperture operation. Confirm the mount version — available in Canon EF, Nikon F, Sony FE, Pentax K, and others. Compatible with full-frame and APS-C bodies in the specified mount.