JINTU USA Brand Quality, 2 Years Warranty, Japan Design , HD LENS This is a manual focus lens. You can only use the lens in "M" manual exposure mode or "A" aperture-priority mode. Feature OPTICS - 35mm prime offers the utmost in optical construction, including ultra-low dispersion lens elements and moisture and dustproof seal on the all-metal mount and barrel. Low dispersion glass offers superior sharpness and color correction by minimizing chromatic aberration. The lens is built with 7 elements in 5 groups with JINTU's patented optical structure to provide image clarity and color. LOW LIGHT - The f/2 maximum aperture complements working in difficult lighting and also affords greater control over depth of field for selective focus applications. CONSTRUCTION - 35mm f/2 is a manual focus lens designed for full-frame and APS-C-sized DSLR cameras. JINTUs 35mm prime offers the utmost in optical construction, including ultra-low dispersion lens elements and moisture and dustproof seal on the all-metal mount and barrel. BOKEH - This bokeh effect of the blurred background can be enhanced with circular aperture blades used in this lens. Conventional aperture blades have flat sides creating unappealing polygonal shaped defocussed points of light. COMPARABILITY WITH CAMERA - Canon EOS EF 300D 350D 400D 450D 500D 550D 600D 650D 700D 750D 760D 800D 1000D 1100D 1200D 1300D 2000D 4000D 100D 200D 250D 80D 77D 70D 60D 50D 7D 6D 5D 1DS T7i T7s T7 T6s T6i T6 T5i T5 T4i T3i SL3 SL2 SL1 5D Mark II 5D Mark III 5D Mark IV 5D Mark V About JINTU We are a professional photography equipment company, start on 2013, USA, Specialize production for camera lens, lens adapter etc in china. JINTU 35mm f/2 is a manual focus lens is designed for full-frame and APS-C-sized DSLR cameras.JINTU 's 35mm offers the utmost in optical construction, including ultra-low dispersion lens elements and moisture and dustproof seal on the all-metal mount and barrel. Low dispersion glass offers superior sharpness and color correction by minimizing chromatic aberration. The lens is built with 7 elements in 5 groups patented optical structure to provide image clarity and color. The f/2 maximum aperture complements working in difficult lighting and also affords greater control over depth of field for selective focus applications. Ultra nano crystal multi-coating eliminates lens element reflections and reduces ghost and flare.When changing your aperture to defocus the background, the light sources appear blurred. This 'bokeh' effect of the blurred background can be enhanced with circular aperture blades used in this lens. Conventional aperture blades have flat sides creating unappealing polygonal shaped defocussed points of light. Overcome this problem through a unique design that keeps the aperture almost circular from its wide-open setting to when it is closed by 2 stops. Smoother, more natural defocusing can be obtained as a result.7 lens elements in 5 groups, Low dispersion ultra nano crystal multi-coating anti-reflection optical glass All metal body and mount ensures durability and rigidity AL aspherical lens element for high image quality with improved performance Equivalent to 53.5mm in the 35mm APS-C format SpecificationsFocal Length: 35mmMax Aperture: f/2Min Aperture: f/22Angle of View: 63 degreesFormat: Full frame and APS-CStructure: 7 elements in 5 groupsAperture Blades: 9Focus