{"product_id":"fujifilm-xf-400mm-f-4-5-r-lm-ois-wr-lens","title":"Fujifilm XF 400mm f\/4.5 R LM OIS WR Lens","description":"\u003cp\u003e\u003cem\u003eSerious reach, bright performance, and the freedom to keep moving.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe FUJINON XF 400mm F4.5 R LM OIS WR is a professional super-telephoto prime for Fujifilm X Series cameras. Its 400mm focal length delivers a field of view equivalent to 609mm on full frame, making it an excellent choice for birds, wildlife, motorsports, aviation, and other distant or fast-moving subjects.\u003c\/p\u003e\n\u003cp\u003eDespite that reach and its bright F4.5 maximum aperture, the lens weighs approximately 2.74 pounds. A high-speed linear autofocus motor, 5.5-stop optical image stabilization, and weather-resistant construction make it well suited to demanding handheld work in the field.\u003c\/p\u003e\n\u003ch3\u003eThe Looking Glass Take\u003c\/h3\u003e\n\u003cp\u003eThe XF 400mm F4.5 occupies a particularly useful place in Fujifilm’s telephoto lineup. It offers substantially more light-gathering ability than Fujifilm’s long telephoto zooms while still delivering a field of view equivalent to 609mm. That combination makes it especially attractive for bird and wildlife photographers who frequently work near the long end of their zoom and want faster shutter speeds, stronger subject separation, and prime-lens image quality.\u003c\/p\u003e\n\u003cp\u003eThe word “compact” deserves some context. At 2.74 pounds, this is not a small everyday lens, but it is genuinely portable for an F4.5 lens with this much effective reach. Its center of gravity sits closer to the camera body, helping it feel better balanced than its length might suggest.\u003c\/p\u003e\n\u003cp\u003eThe tradeoff is versatility. A fixed 400mm lens demands more deliberate framing than a zoom, and its 609mm-equivalent view can be too tight when a larger subject comes close. For photographers who know they need this reach, however, the XF 400mm F4.5 provides a compelling balance of brightness, portability, stabilization, and image quality. Pair it with an X-H2S for responsive action shooting or an X-H2 or X-T5 when resolution and cropping flexibility are the priority.\u003c\/p\u003e\n\u003ch3\u003eA 609mm-Equivalent View\u003c\/h3\u003e\n\u003cp\u003eOn a Fujifilm X Series camera, the 400mm focal length provides the same angle of view as a 609mm lens on full frame. That reach allows photographers to fill the frame with distant wildlife, isolate birds against uncluttered backgrounds, or capture sports and motorsports from well outside the action.\u003c\/p\u003e\n\u003cp\u003eThe F4.5 maximum aperture supports faster shutter speeds without requiring ISO settings as high as slower telephoto zooms. It also produces smooth background separation that helps subjects stand out clearly from their surroundings.\u003c\/p\u003e\n\u003ch3\u003eHigh-Resolution Optical Design\u003c\/h3\u003e\n\u003cp\u003eThe optical design uses 21 elements in 14 groups, including two Super ED and four ED elements. These specialized elements help suppress the chromatic aberration and color fringing that can become especially noticeable at super-telephoto focal lengths.\u003c\/p\u003e\n\u003cp\u003eThe result is high resolution, fine subject detail, and strong color reproduction across the frame. A rounded nine-blade diaphragm produces smooth bokeh, helping create clean separation between a sharply rendered subject and the background.\u003c\/p\u003e\n\u003ch3\u003eFast, Quiet Linear-Motor Autofocus\u003c\/h3\u003e\n\u003cp\u003eA high-speed linear motor drives the internal focusing group, providing fast, accurate, and nearly silent autofocus. Internal focusing also means the lens does not change length as focus moves, preserving its balance and making it easier to follow moving subjects.\u003c\/p\u003e\n\u003cp\u003eA focus limiter can restrict the focusing range to subjects beyond 5 meters, reducing unnecessary focus travel when photographing distant wildlife, aircraft, or sports.\u003c\/p\u003e\n\u003cp\u003eThe lens also includes a focus preset function. Pressing the SET button records a chosen focus distance, allowing the lens to return to that position quickly when a subject revisits a predictable location. A Focus Control Button near the front of the barrel provides convenient access to AF-L, PRESET, or AF functions selected with the Focus Select Switch.\u003c\/p\u003e\n\u003ch3\u003e5.5-Stop Optical Image Stabilization\u003c\/h3\u003e\n\u003cp\u003eThe built-in optical stabilization system provides up to 5.5 stops of correction. This helps maintain a stable viewfinder image and reduces the effects of camera shake when working handheld at an effective 609mm field of view.\u003c\/p\u003e\n\u003cp\u003eStabilization is especially valuable while waiting for wildlife, following erratic movement, or working in locations where a tripod would be difficult to position. It can also help when photographing stationary subjects at slower shutter speeds, although fast-moving subjects will still require an appropriately fast shutter speed.\u003c\/p\u003e\n\u003ch3\u003eExtend Your Reach\u003c\/h3\u003e\n\u003cp\u003eThe XF 400mm F4.5 is compatible with Fujifilm’s optional XF teleconverters:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eWith the XF1.4X TC WR: 560mm F6.3, equivalent to approximately 853mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWith the XF2X TC WR: 800mm F9, equivalent to approximately 1,219mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis makes it possible to carry one prime lens and adapt its reach for smaller or more distant subjects. As with any teleconverter, the added magnification comes with a reduction in maximum aperture.\u003c\/p\u003e\n\u003ch3\u003eBuilt for Demanding Conditions\u003c\/h3\u003e\n\u003cp\u003eThe lens barrel includes 20 weather-sealing points to resist dust and moisture. It is designed to operate in temperatures as low as 14°F, or -10°C, making it suitable for early mornings, changing weather, and colder outdoor environments.\u003c\/p\u003e\n\u003cp\u003eA fluorine coating on the front element repels water and helps prevent fingerprints and other contaminants from sticking to the glass. The included tripod collar foot provides a stable mounting point for tripod and monopod use, while the supplied shoulder strap gives photographers another way to carry the lens in the field.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eFujifilm X-mount super-telephoto prime\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e400mm focal length\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e609mm full-frame-equivalent field of view\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBright F4.5 maximum aperture\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e21 elements in 14 groups\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTwo Super ED and four ED elements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh-speed linear autofocus motor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInternal focusing design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUp to 5.5 stops of optical image stabilization\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFocus preset function\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFocus Control Button\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFocus-range limiter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRounded nine-blade diaphragm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with Fujifilm 1.4x and 2.0x teleconverters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWeather-resistant construction with 20 sealed points\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOperates in temperatures as low as 14°F \/ -10°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFluorine-coated front element\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e95mm filter thread\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMount:\u003c\/strong\u003e Fujifilm X\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFormat:\u003c\/strong\u003e APS-C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFocal length:\u003c\/strong\u003e 400mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFull-frame equivalent:\u003c\/strong\u003e 609mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum aperture:\u003c\/strong\u003e F4.5\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMinimum aperture:\u003c\/strong\u003e F22\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptical construction:\u003c\/strong\u003e 21 elements in 14 groups\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSpecial elements:\u003c\/strong\u003e Two Super ED and four ED elements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAperture blades:\u003c\/strong\u003e Nine, rounded\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMinimum focusing distance:\u003c\/strong\u003e 9.0 feet \/ 2.75 meters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum magnification:\u003c\/strong\u003e 0.16x\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eImage stabilization:\u003c\/strong\u003e Up to 5.5 stops\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFilter size:\u003c\/strong\u003e 95mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e 4.1 × 9.4 inches \/ 104.5 × 239.5mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.74 pounds \/ 1,245 grams, excluding caps and hood\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eFUJINON XF 400mm F4.5 R LM OIS WR Lens\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFLCP-95 front lens cap\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRLCP-001 rear lens cap\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLens hood\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLens pouch\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTripod collar foot\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eShoulder strap\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fujifilm","offers":[{"title":"Default Title","offer_id":53161386377536,"sku":"15925","price":3199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0854\/6218\/8352\/files\/FUJIFILMXF400mmf_4.5RLMOISWRLens1.jpg?v=1789496218","url":"https:\/\/www.lookingglassphoto.com\/products\/fujifilm-xf-400mm-f-4-5-r-lm-ois-wr-lens","provider":"Looking Glass Photographic Outfitters","version":"1.0","type":"link"}