Camera Light Meter

Reflected Shutter Aperture

Free · Designed for iPad. Not verified for macOS.

Turn your iPhone into a precision light meter. Incident & reflected metering, full stop tables, and ΔEV accuracy — everything your film camera wishes it had built in. Glowdex is built for shooting: when you’re at a location with a camera in your hand, it turns a live light reading into the exposure setting you need next. On location, in a few steps * See real‑time brightness (lux) from the camera so you can react as clouds, windows, or subjects move. * Choose reflected metering (what the frame sees) or incident‑style use (how light falls on the subject)—pick what matches how you’re working that shot. * Lock shutter, get aperture — or lock aperture, get shutter: the app snaps your answer to real whole, half, or third stops. * Set ISO to match your film or digital body; lists follow the same stop spacing you’re used to on a dial. Less menu diving, more shooting * Presets for recurring kits or locations—one tap back to your usual ISO, fixed shutter or aperture, and metering mode. * Front or rear camera when you need to meter from a different angle without moving your whole rig.

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-bug fixes -UI improve

The developer, 翌嘉 赵, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary based, for example, on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Provider
    • 翌嘉 赵
    Size
    • 3.6 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English and Simplified Chinese
    Age Rating
    16+
    • 16+
    • Contains
      Unrestricted Web Access
      Advertising
    Copyright
    • © 2026 ZHAO YIJIA