{"uid":"cap_jsG7vE8QoAkcdO_a67lb_","slug":"photography-field-of-view-calculator-5bb2c7d5","name":"Photography Field of View Calculator","description":"Horizontal, vertical and diagonal angle of view for a lens and sensor, and the width and height of scene covered at a distance.","url":"https://photo-calc.x402tookit.com/field-of-view?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["focalMm"],"properties":{"sensor":{"type":"string","description":"full-frame (default), aps-c, aps-c-canon, aps-h, micro-four-thirds, 1-inch or medium-format-44x33"},"focalMm":{"type":"number","description":"Focal length in mm"},"distanceM":{"type":"number","description":"Subject distance in metres to get scene size"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"asOf":{"type":["null","string"]},"class":{"type":["null","string"]},"sensor":{"type":["null","string"]},"source":{"type":["null","string"]},"focalMm":{"type":["null","number"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"summary":{"type":["null","string"]},"verdict":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"sensorMm":{"type":["null","object"],"properties":{"width":{"type":["null","number"]},"height":{"type":["null","number"]},"diagonal":{"type":["null","number"]}}},"disclaimer":{"type":["null","string"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"atDistanceM":{"type":["null","number"]},"diagonalDeg":{"type":["null","number"]},"sceneWidthM":{"type":["null","number"]},"verticalDeg":{"type":["null","number"]},"sceneHeightM":{"type":["null","number"]},"horizontalDeg":{"type":["null","number"]}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_hbvG5q7TA4FYFcMKkP9CH","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Calculates horizontal, vertical, and diagonal angle of view for a given focal length and sensor size, plus the width and height of scene covered at a specified distance.","exampleAgentPrompt":"What's the horizontal, vertical, and diagonal angle of view for a 35mm lens on an APS-C sensor, and how wide and tall a scene does it cover at 5 metres?","exampleUseCases":[{"title":"Portrait photographer framing check","prompt":"I'm shooting portraits with an 85mm lens on my full-frame camera from about 2.5 metres away — what angle of view will I get and how wide and tall a scene will it cover at that distance?"},{"title":"Real estate wide-angle planning","prompt":"I want to photograph a room with a 16mm lens on a micro four thirds sensor from 4 metres back — what horizontal and vertical angles of view will I get, and how much of the wall will it capture?"},{"title":"Wildlife telephoto reach estimate","prompt":"What's the field of view for a 400mm lens on an APS-C sensor, and how wide a scene does it capture at 50 metres?"}],"resultDescription":"Returns horizontal, vertical, and diagonal angles of view in degrees for the specified focal length and sensor combination, plus the physical width and height of the scene covered at the given distance in metres. Also includes the sensor's physical dimensions (width, height, diagonal in mm) and a summary string.","failureModes":["Missing required focalMm parameter returns an error","Invalid sensor type string not matching supported enum values causes failure","Negative or zero focalMm or distanceM values may produce unexpected results","Service unavailable or network timeout for transient failures","Payment failure for x402 micropayment if USDC balance insufficient"],"whenToPreferThis":"Choose this endpoint when you need precise optical field-of-view calculations for a specific lens focal length and camera sensor combination, especially when you also want to know the physical scene coverage at a given distance. Prefer this over general photography references when you need programmatic, numerical FOV values across multiple sensor formats (full-frame, APS-C, APS-C Canon, APS-H, micro four thirds, 1-inch, medium format 44x33).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T06:30:16.367Z","isFirstParty":false,"canonicalSlug":"photography-field-of-view-calculator-5bb2c7d5"}