light & deep vs FocalCalc

Light & Deep is a viewfinder, light meter and LiDAR rangefinder for film, cinema and custom made cameras. Choose your format and focal length, meter the light and measure your subject distance. With Pro (one purchase, no subscription), see the estimated depth of field as zebra stripes over the live scene, and watch it change as you adjust the aperture. Originally built for a handmade camera without a finder or meter, it brings the same practical tools to medium-format, large-format and panoramic photography. SEE DEPTH OF FIELD — PRO Explore which nearby parts of your scene would be sharp for your format, focal length, aperture and focus distance. Open the aperture and the highlighted zone narrows. Stop down and it grows. METER THE LIGHT Set your film ISO, choose aperture or shutter priority, and read the corresponding exposure setting. Pro adds spot metering and calibration for each iPhone lens. FRAME YOUR SHOT Set your format and focal length to preview composition. Free offers 35mm full frame and 6x6 medium format. Pro offers 53 film, digital and cinema formats, including large format, XPan, Instax, Polaroid, Super 8, and IMAX. MEASURE THE DISTANCE On a LiDAR-equipped iPhone, tap a point to measure its distance. The free distance zebra highlights surfaces near the selected distance. Pro adds depth-of-field visualization and can keep measuring a fixed point in the scene even as you move the phone. SAVE A REFERENCE — PRO Keep a reference photo with a settings strip and image metadata. Record aperture, shutter speed, ISO, format, focal length, distance, a film note and optional location, so you can refer back to your setup later. FREE, WITH NO TIME LIMIT • Reflective light meter with aperture and shutter priority • 35mm full-frame and 6×6 frame overlays • Focal-length control • LiDAR distance measurement, tap-to-measure and target-distance zebras on supported hardware PRO - ONE PURCHASE, NO SUBSCRIPTION • Depth-of-field visualization on supported hardware • All 53 formats • Spot metering and light-meter calibration • Reference photos with settings and metadata • Fixed-point distance tracking • Ultrawide camera support on compatible devices • Black-and-white view and virtual horizon • Frame, zebra and crosshair customization • Parallax correction for a phone mounted on a camera • Cinema tools: shutter angle, project frame rate and anamorphic squeeze Pro is an optional one-time in-app purchase. The free features remain available without upgrading. REQUIREMENTS iPhone with iOS 17.6 or later. Distance measurement, distance zebras and depth-of-field visualization require a LiDAR-equipped iPhone: iPhone 12 Pro or 12 Pro Max, or a later model with LiDAR. Metering and framing work without LiDAR. LiDAR is intended for nearby subjects, with a useful range of about five metres depending on conditions. Depth coverage is limited to the central area in ultrawide view. The depth-of-field overlay estimates acceptable sharpness; it does not simulate lens bokeh or guarantee the final photograph's sharpness. PRIVACY No account, ads or analytics. Camera, depth and exposure processing happens on your device. Optional location data is used when you choose to include it in a reference photo.

FocalCalc shows, live, what focal length your iPhone's current view corresponds to on your own cameras. When you are scouting a location and want to know which lens will give you this framing, just hold up your iPhone. FocalCalc converts the angle of view to full frame, APS-C, Micro Four Thirds, medium format and more. FEATURES • Live equivalent focal length Your main format is shown large, with up to four other formats below it, along with the angle of view (diagonal or long edge). • Zoom slider with focal-length ticks The slider shows ticks in your main format (24, 35, 50, 85 mm…). Tap a number to jump to that focal length, or pinch to zoom. • Sensor formats Presets for full frame, APS-C (Sony / Nikon / Fujifilm and Canon), Micro Four Thirds, 44×33 medium format, 645 and 6×6. Add your own camera by entering its sensor size. • Diagonal or long-edge basis Match the diagonal angle of view (the same idea as the "35mm equivalent" in iPhone photos) or the long-edge width in landscape. • Capture with records Photos are saved with the 35mm equivalent focal length (EXIF) and a caption such as "FF 24mm | APS-C 16mm (diag, FocalCalc)", which you can see in the Photos app info panel. • Optional burn-in Draw the values into a corner of the photo. Choose the position and text size, and optionally keep a copy without the text. • Save as HEIC or JPEG PRICING • Free to download, with a 7-day free trial of every feature. • To keep using it after the trial, purchase the app for ¥300 (one-time — there is no subscription). • The focal length calculator (enter a focal length and see it in every format) is free to use at any time, with or without a purchase. PLEASE NOTE • FocalCalc is a tool for checking and recording the angle of view. It cannot use all of the image processing of the built-in Camera app (such as Night mode), so image quality and low-light results are lower than with the Camera app. • The values are estimates calculated from the angle of view reported by the iPhone. Lens distortion and device differences may cause small differences from real cameras. • The app is available in English and Japanese and works in landscape orientation. PRIVACY FocalCalc does not collect any data. It makes no network connections and only adds photos to your library when you take them. REQUIREMENTS iPhone with iOS 17 or later