{"product_id":"canon-1-4x-iii","title":"Canon 1.4x III - 1896","description":"\u003ch2\u003eCanon 1.4x III - 1896\u003c\/h2\u003e\n\u003cp\u003eExtending a lenses focal length by a factor of 1.4x, Extender EF 1.4X III incorporates phenomenal optical performance with minimal chromatic aberration and is a perfect complement to many of Canon super telephoto lenses. The Fluorine coating resists soiling, smears and fingerprints. Extender EF 1.4X III maintains high standards not only optically, but also in terms of rugged, dustproof and water resistant construction.\u003c\/p\u003e\n\u003ch5\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"nqh53j\" data-start=\"27\" data-end=\"219\"\u003e\n\u003cstrong data-start=\"29\" data-end=\"62\"\u003eReliable teleconverter boost:\u003c\/strong\u003e The \u003cstrong data-start=\"67\" data-end=\"85\"\u003eCanon 1.4× III\u003c\/strong\u003e teleconverter extends your lens reach by \u003cstrong data-start=\"127\" data-end=\"134\" data-is-only-node=\"\"\u003e40%\u003c\/strong\u003e (e.g., 100 mm → 140 mm), giving you extra framing power without buying a new lens.\u003c\/li\u003e\n\u003cli data-section-id=\"46g0gm\" data-start=\"220\" data-end=\"369\"\u003e\n\u003cstrong data-start=\"222\" data-end=\"260\"\u003eMaintains excellent communication:\u003c\/strong\u003e Preserves \u003cstrong data-start=\"271\" data-end=\"323\"\u003eautofocus, exposure metering, and IS performance\u003c\/strong\u003e with compatible Canon EF lenses and bodies.\u003c\/li\u003e\n\u003cli data-section-id=\"1v55e0u\" data-start=\"370\" data-end=\"551\"\u003e\n\u003cstrong data-start=\"372\" data-end=\"418\"\u003eImproved optics over previous generations:\u003c\/strong\u003e Canon’s III‑series design delivers \u003cstrong data-start=\"454\" data-end=\"487\"\u003ebetter sharpness and contrast\u003c\/strong\u003e than older 1.4× teleconverters, minimizing image degradation.\u003c\/li\u003e\n\u003cli data-section-id=\"1acyhdt\" data-start=\"552\" data-end=\"650\"\u003e\n\u003cstrong data-start=\"554\" data-end=\"580\"\u003eCompact \u0026amp; lightweight:\u003c\/strong\u003e Adds minimal bulk to your setup—easy to carry and use in the field.\u003c\/li\u003e\n\u003cli data-section-id=\"1ntsg1x\" data-start=\"651\" data-end=\"807\"\u003e\n\u003cstrong data-start=\"653\" data-end=\"682\"\u003eProfessional‑grade build:\u003c\/strong\u003e Solid construction and reliable mount fit make this a dependable choice for travel, wildlife, sports, and nature shooters.\u003c\/li\u003e\n\u003cli data-section-id=\"at0nm5\" data-start=\"808\" data-end=\"951\"\u003e\n\u003cstrong data-start=\"810\" data-end=\"841\"\u003eBest with telephoto lenses:\u003c\/strong\u003e Works particularly well on \u003cstrong data-start=\"869\" data-end=\"904\"\u003elong telephoto primes and zooms\u003c\/strong\u003e where extended reach yields the most impact.\u003c\/li\u003e\n\u003cli data-section-id=\"ioywar\" data-start=\"952\" data-end=\"1134\"\u003e\n\u003cstrong data-start=\"954\" data-end=\"985\"\u003eAperture \u0026amp; light trade‑off:\u003c\/strong\u003e Expect a \u003cstrong data-start=\"995\" data-end=\"1016\"\u003e1‑stop light loss\u003c\/strong\u003e after magnification (e.g., f\/2.8 → f\/4), so pairing with stable bodies or strong light conditions improves results.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cdiv class=\"flex flex-col text-sm\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:d56e96a5-725e-41a4-b546-c9d7c371ee50-13\" data-testid=\"conversation-turn-28\" data-scroll-anchor=\"true\" 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 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=\"a438d36e-8800-4547-91b7-910ea7baff0f\" data-turn-start-message=\"true\" dir=\"auto\" data-message-model-slug=\"gpt-5-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 w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003cp data-start=\"65\" data-end=\"262\"\u003e\u003cstrong data-start=\"65\" data-end=\"99\"\u003eQ: What is the Canon 1.4x III?\u003c\/strong\u003e\u003cbr data-start=\"99\" data-end=\"102\"\u003eA: A 1.4× teleconverter (extender) that increases the effective focal length of compatible Canon telephoto lenses by 1.4×. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"264\" data-end=\"447\"\u003e\u003cstrong data-start=\"264\" data-end=\"316\"\u003eQ: How does it affect focal length and aperture?\u003c\/strong\u003e\u003cbr data-start=\"316\" data-end=\"319\"\u003eA: It multiplies the lens’s focal length by 1.4× and reduces maximum aperture by one stop. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"449\" data-end=\"626\"\u003e\u003cstrong data-start=\"449\" data-end=\"487\"\u003eQ: Which mount is it designed for?\u003c\/strong\u003e\u003cbr data-start=\"487\" data-end=\"490\"\u003eA: Canon EF mount for DSLR lenses; it can also be used on RF bodies with a Canon EF‑EOS R adapter. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"628\" data-end=\"839\"\u003e\u003cstrong data-start=\"628\" data-end=\"658\"\u003eQ: Is autofocus supported?\u003c\/strong\u003e\u003cbr data-start=\"658\" data-end=\"661\"\u003eA: Yes — AF and lens communication are maintained with compatible lenses, though AF speed may be slightly slower due to the aperture change. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"841\" data-end=\"1010\"\u003e\u003cstrong data-start=\"841\" data-end=\"877\"\u003eQ: Does it affect image quality?\u003c\/strong\u003e\u003cbr data-start=\"877\" data-end=\"880\"\u003eA: Designed with optimized optics and coatings to minimize loss of sharpness and aberration. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1012\" data-end=\"1174\"\u003e\u003cstrong data-start=\"1012\" data-end=\"1051\"\u003eQ: Is it rugged and weather‑sealed?\u003c\/strong\u003e\u003cbr data-start=\"1051\" data-end=\"1054\"\u003eA: Yes — dust‑ and water‑resistant construction with fluorine coating on elements. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1176\" data-end=\"1410\"\u003e\u003cstrong data-start=\"1176\" data-end=\"1213\"\u003eQ: What lenses work best with it?\u003c\/strong\u003e\u003cbr data-start=\"1213\" data-end=\"1216\"\u003eA: Compatible with many Canon L‑series super‑telephoto and select zooms (e.g., 70‑200mm, 100‑400mm, 300\/400\/600mm telephotos). Check specific compatibility. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1412\" data-end=\"1562\"\u003e\u003cstrong data-start=\"1412\" data-end=\"1455\"\u003eQ: What’s the physical size and weight?\u003c\/strong\u003e\u003cbr data-start=\"1455\" data-end=\"1458\"\u003eA: Compact (≈27 mm long, 72 mm diameter) and lightweight (~225 g). \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1564\" data-end=\"1752\"\u003e\u003cstrong data-start=\"1564\" data-end=\"1600\"\u003eQ: Who should use this extender?\u003c\/strong\u003e\u003cbr data-start=\"1600\" data-end=\"1603\"\u003eA: Photographers needing extra reach for wildlife, sports, and distant subjects without carrying longer lenses. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1754\" data-end=\"1919\"\u003e\u003cstrong data-start=\"1754\" data-end=\"1800\"\u003eQ: Can it be stacked with other extenders?\u003c\/strong\u003e\u003cbr data-start=\"1800\" data-end=\"1803\"\u003eA: Canon extenders are not designed to be stacked for higher multiplication. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003ch5\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"16xgq42\" data-start=\"99\" data-end=\"172\"\u003eClean front and rear optics gently with microfiber cloth + air blower\u003c\/li\u003e\n\u003cli data-section-id=\"1hqrwpd\" data-start=\"173\" data-end=\"239\"\u003eAlways use front \u0026amp; rear caps to protect glass and prevent dust\u003c\/li\u003e\n\u003cli data-section-id=\"1s0kzzl\" data-start=\"240\" data-end=\"309\"\u003eStore in a dry box or padded case with silica gel to avoid fungus\u003c\/li\u003e\n\u003cli data-section-id=\"17yk5yi\" data-start=\"310\" data-end=\"354\"\u003eAvoid touching optical surfaces directly\u003c\/li\u003e\n\u003cli data-section-id=\"g8bmzu\" data-start=\"355\" data-end=\"429\"\u003eWipe mount contacts occasionally to maintain AF and lens communication\u003c\/li\u003e\n\u003cli data-section-id=\"1o6w8dy\" data-start=\"430\" data-end=\"492\"\u003eHandle carefully—internal optics are precise and sensitive\u003c\/li\u003e\n\u003cli data-section-id=\"19hlm1v\" data-start=\"493\" data-end=\"566\"\u003eKeep away from extreme heat, humidity, and sudden temperature changes\u003c\/li\u003e\n\u003cli data-section-id=\"vrpfz1\" data-start=\"567\" data-end=\"644\"\u003eCheck compatibility with lenses before mounting to ensure proper function\u003c\/li\u003e\n\u003cli data-section-id=\"vvuou4\" data-start=\"645\" data-end=\"718\"\u003eCarry in padded compartment during transport to prevent impact damage\u003c\/li\u003e\n\u003cli data-section-id=\"dvll38\" data-start=\"719\" data-end=\"782\"\u003ePeriodically inspect for dust, fungus, or mechanical issues\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Canon","offers":[{"title":"Default Title","offer_id":46395455537302,"sku":"1896","price":321.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/3128\/3350\/files\/1896-00.jpg?v=1779693673","url":"https:\/\/paw-counter.com\/products\/canon-1-4x-iii","provider":"Move Better Every Day","version":"1.0","type":"link"}