{"product_id":"zeiss-fe-21mm-f2-8-loxia","title":"Zeiss FE 21mm f2.8 Loxia - 3877","description":"\u003ch2\u003eZeiss FE 21mm f2.8 Loxia - 3877\u003c\/h2\u003e\n\u003cp\u003eCompact, wide-angle and powerful – these are the properties that make the super wide-angle Loxia 2.8\/21 so special. The optical design has been specially developed for high-resolution, full-frame sensors of the mirrorless Sony α series. A system expansion through the new ZEISS Loxia – in a focal length range that has a long tradition at ZEISS.\u003c\/p\u003e\n\u003cp\u003eDespite its compactness, the super wide-angle ZEISS Loxia 2.8\/21 offers outstanding image performance – across the entire image field of a full-frame sensor. Whether architecture, landscape or also three-dimensional subjects in close-up against a spacious background – this focal length with its large image angle is an excellent addition to the Loxia lens family. It is an absolute must for wide-angle fans who want to capture even the tiniest details of a special moment in a photo or on film.\u003c\/p\u003e\n\u003cp\u003eZEISS Loxia lenses were specifically designed for Sony α7 cameras. This means that they can make the most of the mirrorless, full frame system, while giving you all the creative possibilities of ‘classic’ photography with manual focus at the same time.\u003c\/p\u003e\n\u003cp\u003eAnd that’s not all: ZEISS Loxia lenses also provide everything you need to shoot high quality video, such as the unique DeClick feature for smooth adjustment of the aperture, for example.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrecise manual focus\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eManually focusing a lens means controlling the image result from your fingertips. A good ergonomic design makes all the difference. ZEISS lenses stand out with their large rotation angle which enables precise focusing. Changes are immediately visible in the viewfinder. The high-quality focusing mechanism moves smoothly without play, thus also supporting the intuitive interaction with the focal plane. The precise engraving in meter and feet, and the depth of focus scale provide additional support for manually focusing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDeClick feature\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOne completely new feature of the Loxia lens is that you can ‘declick’ the aperture’s locking mechanism using a tool (supplied) and an adjustment screw on the bayonet surface. This means that for video applications, you can smoothly eliminate any unwanted differences in brightness as you pan the camera. This feature can also be used with other video systems whose size makes them suitable for adaption.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVirtually distortion-free optics\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDramatic perspectives and a view from extraordinary image angles – ZEISS lenses open up new composition possibilities. Distortion would disrupt the composition because straight lines, whose image does not go through the image center, would be reproduced with a curved shape. This annoying effect is accordingly and largely compensated through elaborate optical designs at all focal lengths.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHig-grade full-metal casing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTangible quality that holds its value is what qualifies ZEISS lenses for decades of hard use. A precision-engineered full-metal casing, grippy focus and aperture rings made of metal, and a tough front bayonet and filter screw guarantee stunning photographic results. A special sealing ring on the bayonet also protects the interface between the camera and the lens.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImmensely compatible\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ZEISS Loxia lenses are suitable for use with the mirrorless Sony Alpha cameras with E-mount and were optimized for sensors up to full 35 mm format (24 x 36 mm). With the ZEISS Loxia lenses, the aperture is controlled manually. This allowed the integration of the so-called DeClick feature of the mechanical aperture ring. The cameras feature the corresponding automatic exposure control (A) and manual exposure control (M).\u003c\/p\u003e\n\u003ch5\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-WEB:96092c70-a30d-43e2-bd1e-e538150e0c40-9\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:96092c70-a30d-43e2-bd1e-e538150e0c40-9\" data-turn-id-container=\"request-WEB:96092c70-a30d-43e2-bd1e-e538150e0c40-9\" data-testid=\"conversation-turn-20\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"61e2d84f-1a68-4966-a54d-f695b4007d87\" data-turn-start-message=\"true\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-mini\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cul data-start=\"27\" data-end=\"1573\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"1mm8rjm\" data-start=\"27\" data-end=\"266\"\u003e\n\u003cstrong data-start=\"29\" data-end=\"65\"\u003eUltra-precise wide-angle optics:\u003c\/strong\u003e The Loxia 21mm f\/2.8 delivers exceptionally high sharpness and micro-contrast, making it a top-tier choice for landscapes, architecture, and travel photography. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1v0ygul\" data-start=\"267\" data-end=\"472\"\u003e\n\u003cstrong data-start=\"269\" data-end=\"301\"\u003eNear-zero distortion design:\u003c\/strong\u003e Engineered for optical purity, it shows extremely low distortion, allowing clean geometry with minimal post-processing correction. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"wxb13u\" data-start=\"473\" data-end=\"685\"\u003e\n\u003cstrong data-start=\"475\" data-end=\"507\"\u003eExcellent clarity and color:\u003c\/strong\u003e Zeiss T* coating and refined optical formula produce rich contrast, natural color rendering, and strong resistance to flare and ghosting. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1tgtb0v\" data-start=\"686\" data-end=\"894\"\u003e\n\u003cstrong data-start=\"688\" data-end=\"726\"\u003eHigh center performance wide open:\u003c\/strong\u003e Sharpness is strong at f\/2.8 in the center, with peak performance reached when stopped down to f\/4–f\/8 for edge-to-edge detail. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"xml2h2\" data-start=\"895\" data-end=\"1064\"\u003e\n\u003cstrong data-start=\"897\" data-end=\"938\"\u003eProfessional manual focus experience:\u003c\/strong\u003e Smooth, damped focus ring and precise mechanical design make it ideal for deliberate shooting and zone focusing techniques.\u003c\/li\u003e\n\u003cli data-section-id=\"a0y4zc\" data-start=\"1065\" data-end=\"1210\"\u003e\n\u003cstrong data-start=\"1067\" data-end=\"1089\"\u003eCompact pro build:\u003c\/strong\u003e Solid all-metal construction with excellent ergonomics, designed for portability without compromising optical quality.\u003c\/li\u003e\n\u003cli data-section-id=\"z62fd1\" data-start=\"1211\" data-end=\"1408\"\u003e\n\u003cstrong data-start=\"1213\" data-end=\"1239\"\u003eReal-world trade-offs:\u003c\/strong\u003e Mild vignetting at f\/2.8 and slight corner softness wide open are typical for ultra-wides but improve quickly when stopped down. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"17ssgaq\" data-start=\"1409\" data-end=\"1573\" data-is-last-node=\"\"\u003e\n\u003cstrong data-start=\"1411\" data-end=\"1440\"\u003eSpecialist creative tool:\u003c\/strong\u003e Best suited for photographers who value optical accuracy, tactile control, and Zeiss rendering character over autofocus convenience.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch5\u003e\n\u003cbr\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cp data-start=\"0\" data-end=\"313\"\u003e\u003cstrong data-start=\"0\" data-end=\"57\"\u003eQ: What is the ZEISS Loxia 21mm f\/2.8 (Sony E, 3877)?\u003c\/strong\u003e\u003cbr data-start=\"57\" data-end=\"60\"\u003eA: A premium manual-focus ultra-wide prime lens for Sony E-mount full-frame cameras, designed using ZEISS’s Distagon optical concept for high sharpness, low distortion, and strong contrast in a compact metal body. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"315\" data-end=\"574\"\u003e\u003cstrong data-start=\"315\" data-end=\"354\"\u003eQ: What are the key specifications?\u003c\/strong\u003e\u003cbr data-start=\"354\" data-end=\"357\"\u003eA: 21mm focal length, f\/2.8–f\/22 aperture, full-frame coverage, 11 elements in 9 groups (including aspherical and low-dispersion elements), 52mm filter thread, and ~394g weight. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"576\" data-end=\"799\"\u003e\u003cstrong data-start=\"576\" data-end=\"623\"\u003eQ: Does it have autofocus or stabilization?\u003c\/strong\u003e\u003cbr data-start=\"623\" data-end=\"626\"\u003eA: No. It is fully manual focus with a smooth long-throw focus ring and no optical image stabilization, designed for precise control. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"801\" data-end=\"1019\"\u003e\u003cstrong data-start=\"801\" data-end=\"833\"\u003eQ: What is it best used for?\u003c\/strong\u003e\u003cbr data-start=\"833\" data-end=\"836\"\u003eA: Landscape, architecture, interiors, street, and environmental photography where wide-angle perspective and edge-to-edge clarity matter most. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1021\" data-end=\"1268\"\u003e\u003cstrong data-start=\"1021\" data-end=\"1053\"\u003eQ: How is the image quality?\u003c\/strong\u003e\u003cbr data-start=\"1053\" data-end=\"1056\"\u003eA: Very high sharpness across the frame, strong micro-contrast, minimal chromatic aberration, and excellent color rendering thanks to ZEISS T* coatings and Distagon design. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1270\" data-end=\"1520\"\u003e\u003cstrong data-start=\"1270\" data-end=\"1311\"\u003eQ: What makes the Loxia 21mm special?\u003c\/strong\u003e\u003cbr data-start=\"1311\" data-end=\"1314\"\u003eA: Compact size, all-metal build, weather-sealed mount, and a “pure manual” shooting experience that still communicates with Sony bodies for EXIF and assist features. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1522\" data-end=\"1661\"\u003e\u003cstrong data-start=\"1522\" data-end=\"1543\"\u003eQ: Any drawbacks?\u003c\/strong\u003e\u003cbr data-start=\"1543\" data-end=\"1546\"\u003eA: No autofocus, no stabilization, and noticeable vignetting wide open at f\/2.8 that improves when stopped down.\u003c\/p\u003e\n\u003ch5\u003e\n\u003cbr\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"6933511c-dc12-430d-9e4a-cf97cb71775e\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-(--sticky-padding-top)\" dir=\"auto\" data-turn-id=\"6933511c-dc12-430d-9e4a-cf97cb71775e\" data-turn-id-container=\"6933511c-dc12-430d-9e4a-cf97cb71775e\" data-testid=\"conversation-turn-71\" data-turn=\"user\"\u003e\u003c\/section\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-WEB:a0a73f2c-f3c9-42d0-9958-01fbde1d827a-35\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:a0a73f2c-f3c9-42d0-9958-01fbde1d827a-35\" data-turn-id-container=\"request-WEB:a0a73f2c-f3c9-42d0-9958-01fbde1d827a-35\" data-testid=\"conversation-turn-72\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-3 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"eae572eb-621c-4512-92cc-3c2ba84d445a\" data-turn-start-message=\"true\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-mini\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cul data-start=\"0\" data-end=\"1421\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"18ejkvo\" data-start=\"0\" data-end=\"144\"\u003e\n\u003cstrong data-start=\"2\" data-end=\"39\" data-is-only-node=\"\"\u003eZeiss Loxia 21mm f\/2.8 Biogon T*\u003c\/strong\u003e ultra-wide manual-focus prime for Sony E (FE) full-frame cameras \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"14g66w4\" data-start=\"145\" data-end=\"287\"\u003eBased on \u003cstrong data-start=\"156\" data-end=\"181\"\u003eBiogon optical design\u003c\/strong\u003e for very low distortion, high sharpness, and flat field rendering \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1qilrdg\" data-start=\"288\" data-end=\"439\"\u003e\n\u003cstrong data-start=\"290\" data-end=\"328\" data-is-only-node=\"\"\u003e21mm focal length + f\/2.8 aperture\u003c\/strong\u003e → ideal for landscapes, architecture, interiors, and astro photography \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"15r1619\" data-start=\"440\" data-end=\"569\"\u003eExtremely low distortion and strong corner-to-corner sharpness, especially from f\/4–f\/8 \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"bref8z\" data-start=\"570\" data-end=\"696\"\u003eZeiss \u003cstrong data-start=\"578\" data-end=\"585\"\u003eT*\u003c\/strong\u003e coating for high contrast, color fidelity, and strong flare resistance \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"18piz3m\" data-start=\"697\" data-end=\"837\"\u003eFully \u003cstrong data-start=\"705\" data-end=\"721\"\u003emanual focus\u003c\/strong\u003e with long, precise focus throw for accurate zone focusing and critical work \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1y3btm3\" data-start=\"838\" data-end=\"977\"\u003eCompact, premium all-metal build (~390g range) with excellent handling and balance on Sony bodies \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1diy74k\" data-start=\"978\" data-end=\"1108\"\u003eClicked aperture ring (de-clickable) from f\/2.8 to f\/22, useful for both photo and video \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1s0z17r\" data-start=\"1109\" data-end=\"1230\"\u003eClose focus around \u003cstrong data-start=\"1130\" data-end=\"1138\"\u003e25cm\u003c\/strong\u003e, allowing dramatic wide-angle close-up perspectives \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"7wjxao\" data-start=\"1231\" data-end=\"1421\" data-is-last-node=\"\"\u003eStrong optical character: very “clean” rendering with minimal distortion and high micro-contrast, prioritizing precision over softness or vintage look\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Zeiss","offers":[{"title":"Default Title","offer_id":45804897337535,"sku":"3877","price":974.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/Untitled-1_0000_1444669591_1189220.jpg?v=1782934357","url":"https:\/\/www.mybackyardzone.com\/products\/zeiss-fe-21mm-f2-8-loxia","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}