{"product_id":"sirui-astra-af-50mm-t1-8-1-33x-autofocus-full-frame-for-e-mount-blue-flare-ast-50-eb","title":"SIRUI Astra AF 50mm T1.8 1.33X Autofocus Full Frame for E-Mount Blue Flare (AST-50-EB)","description":"\u003ch2\u003eSirui Astra Anamorphic FF 50mm T1.8 AF Overview\u003c\/h2\u003e\u003cp\u003eKey Features\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCovers Full Frame | T1.8-T22 Aperture\u003c\/li\u003e\n\u003cli\u003eSelectable Manual and Autofocus\u003c\/li\u003e\n\u003cli\u003eBlue Streak Flares\u003c\/li\u003e\n\u003cli\u003e2.4:1 Aspect Ratio, No Cropping\u003c\/li\u003e\n\u003cli\u003eOval Bokeh, Vertical Background Stretch\u003c\/li\u003e\n\u003cli\u003e1.6' Minimum Focus Distance\u003c\/li\u003e\n\u003cli\u003e67mm Filter Thread, 72mm Outer Diameter\u003c\/li\u003e\n\u003cli\u003e18 Elements in 14 Groups\u003c\/li\u003e\n\u003cli\u003eExpansive 44mm Image Circle\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eCapture wide cinematic images enhanced by natural blue flares using the \u003cstrong\u003eAstra Series T1.8 1.33x 50mm Full-Frame Anamorphic Lens\u003c\/strong\u003e from \u003cstrong\u003eSirui\u003c\/strong\u003e. Equipped with a Sony E mount, the lens offers a maximum aperture of T1.8 for low-light image capturing and shallow depth of field, and a minimum aperture of T22. The expansive 44mm image circle ensures edge-to-edge sharpness and optimal coverage without vignetting, and the optical design is crafted with 18 elements in 14 groups. It can be focused manually, offering a minimum focus distance of 1.6', and it weighs only 1.37 lb without the front and rear lens caps.\u003c\/p\u003e\u003cp class=\"ql-align-center\"\u003e\u003cimg src=\"https:\/\/static.bhphoto.com\/images\/rich_content\/desktop\/1768301687_IMG_2654103.jpg\"\u003e\u003c\/p\u003e\u003cp\u003eFull-Frame Coverage with Expansive 44mm Image Circle\u003c\/p\u003e\u003cp\u003eThe 44mm image circle fully covers full-frame sensors and is compatible with mirrorless systems and ready for professional cinematic production.\u003c\/p\u003e\u003cp\u003eSolo-Ready Autofocus\u003c\/p\u003e\u003cp\u003eTraditional full-frame anamorphic lenses rely on manual focus, which limits efficiency and requires large crews, typically for professional film teams. Astra Series lenses provide fast and precise autofocus, eliminating the need for a focus puller. This significantly increases shooting efficiency, enabling solo operators or small teams to shoot professional cinema with ease.\u003c\/p\u003e\u003cp\u003eBuilt-In Metric and Imperial Focus Distance Scale\u003c\/p\u003e\u003cp\u003eBuilt-in focus distance scale with metric and imperial markings, and LiDAR follow focus compatibility, ensures consistent focus tracking, supporting efficient and stable professional filmmaking.\u003c\/p\u003e\u003cp class=\"ql-align-center\"\u003e\u003cimg src=\"https:\/\/static.bhphoto.com\/images\/rich_content\/desktop\/1768301689_IMG_2654105.jpg\"\u003e\u003c\/p\u003e\u003cp\u003eConstant 1.33x Squeeze Ratio\u003c\/p\u003e\u003cp\u003eMost mirrorless cameras shoot in 16:9. With a 1.33x squeeze ratio, this lens directly restores the classic 2.4:1 widescreen cinematic look without cropping or pixel loss, delivering a high-resolution, immersive image.\u003c\/p\u003e\u003cp class=\"ql-align-center\"\u003e\u003cimg src=\"https:\/\/static.bhphoto.com\/images\/rich_content\/desktop\/1768301689_IMG_2654107.jpg\"\u003e\u003c\/p\u003e\u003cp\u003ePleasing Cinematic Bokeh\u003c\/p\u003e\u003cp\u003eOval bokeh and vertical background stretch bring classic cinematic artistry to life, augmented by visually pleasing blue flares.\u003c\/p\u003e\u003cp class=\"ql-align-center\"\u003e\u003cimg src=\"https:\/\/static.bhphoto.com\/images\/rich_content\/desktop\/1768301689_IMG_2654109.jpg\"\u003e\u003c\/p\u003e\u003cp\u003eOptimal Low-Light Performance with True Anamorphic Character\u003c\/p\u003e\u003cp\u003eProvides ample light even in low-light or night scenes for high-quality and clean images. The shallow depth of field creates soft bokeh and natural subject separation, guiding the viewer's focus with ease. While maintaining the distinctive anamorphic character, Astra Series lenses improve central sharpness. Vintage edge rendering meets modern control of distortion and focus breathing, achieving a refined balance that defines true anamorphic character.\u003c\/p\u003e\u003cp class=\"ql-align-center\"\u003e\u003cimg src=\"https:\/\/static.bhphoto.com\/images\/rich_content\/desktop\/1768301689_IMG_2654111.jpg\"\u003e\u003c\/p\u003e\u003cp\u003eOutstanding Close-Up Performance\u003c\/p\u003e\u003cp\u003eEasily capture portraits and vivid close-ups with rich detail. The T1.8 fast aperture adds depth, texture, and atmosphere with uniform color and tone across all focal lengths, enabling fast lens swapping and easier post-production.\u003c\/p\u003e","brand":"SIRUI","offers":[{"title":"Default Title","offer_id":47761005117670,"sku":"116173","price":14599000.0,"currency_code":"IDR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/3088\/0230\/files\/1781163362.jpg?v=1781163449","url":"https:\/\/doss.co.id\/products\/sirui-astra-af-50mm-t1-8-1-33x-autofocus-full-frame-for-e-mount-blue-flare-ast-50-eb","provider":"DOSS Camera \u0026 Gadget","version":"1.0","type":"link"}