Focusing Loupe vs MeterGlass

Focusing Loupe is a user-friendly app designed to help you focus your large-format camera with ease. It lets you view the ground glass image either in its natural upside-down orientation or flipped to correct it. You can manually adjust the distance between your phone and the ground glass, which is particularly useful when light reflections interfere with automatic focusing. You also have full control over magnification levels. This app is specifically optimized for Graflex Speed Graphic cameras with the focusing hood attached, where traditional loupes may not be ideal.

MeterGlass is a professional light meter built for film and large format photographers. Metering • Average metering and ~1.5° spot metering with a live acceptance-angle readout; pinch to zoom in tighter • Zone System: multi-point capture and placement, scene contrast and N+/N- development suggestions, shareable metering cards • Calibration in 0.1 EV steps against a gray card or a meter you trust Film formats • Nine format masks from 135 to 8x10 (including 6x12/6x17 panoramic) with in-mask metering • Live equivalent focal length per format, portrait/landscape framing, zoom with 5mm detents Exposure • EV, aperture/shutter pairs, exposure compensation, illuminance (lux) and color temperature • Filter factors (yellow/orange/red/ND) and bellows extension compensation, folded into suggestions automatically • ISO 20–25600, apertures f/1–f/256, full/half/third-stop steps Instrument-style interface, six languages, fully offline, zero data collection.