Nit · iOS
Light meter.
For analog photographers.
Light meter
for film, in your iPhone.
Nit meters reflected and incident light through the iPhone camera, computes the exposure triangle with an APEX solver and knows 49 film stocks — from Kodak Portra to CineStill 800T. With live film look, zone system and push/pull.
In beta — drop me a line01
Exposure triangle
Aperture, shutter, ISO — the APEX solver does the math.
Lock one value and the app computes the other two in third-stop steps (Minolta standard). Reflected or incident metering through the camera, spot metering by tapping the image. Exposure simulation ±3 EV via the hardware bias.
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49 film stocks
Kodak, Fuji, Ilford, CineStill and more.
Load film virtually — ISO sets itself, push/pull badge from ±0.1 stops. Film recommendation matched to the metered scene. Includes reciprocity correction for long exposures up to 60 min.
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Histogram + zones (Pro)
Ansel Adams zone system live in the viewfinder.
Live histogram with 11 zones after Ansel Adams, clipping warning in blue/red, bimodal backlight detection. Two-zone metering with compromise EV and a dynamic-range check against the film’s latitude.
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Film-look live preview (Pro)
See how the film will look.
Saturation, warmth, contrast, tone curve, vignette, grain and halation as a CIFilter chain over the live preview. Push/pull modifies the look. Saved photos run through the same renderer — pixel-identical to the preview.
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Camera + lens (Pro)
110 real bodies, 35 interchangeable lenses.
From Leica M6 to Praktica MTL5, from Linhof Technika to Hasselblad 500CM — plus 48 folding cameras from East/West Germany and the USSR. The iPhone sensor zooms to the 35mm-equivalent focal length and masks the negative format (3:2 / 1:1 / 5:4 / 7:6). Preview and photo show the frame the analog camera would actually expose.
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22 lens filters (Pro)
Glass filters with physically accurate effect.
Y2/O2/R3 for B&W contrast, ND2 to ND1000 for long exposure, 85B/80A for conversion, IR720/IR850 for infrared. Stackable with additive EV correction. The live preview computes channel transmissions on B&W film and tints on color film — the yellow filter darkens the sky, not the whole image.
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Lomo mode (Pro)
Toy-camera presets as a complete package.
Holga 120, Lomo LC-A, Diana F+ and Fisheye 2 — aperture, shutter and film look are preset per camera. Vignette, cross-processing and lo-fi character run through the same pipeline as the film look; live preview and photo are identical.
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Depth of field + bokeh (Pro)
DoF live in the viewfinder, computed per film format.
Circle-of-confusion–based depth of field per format (35mm, 6×6, 6×7, 4×5). Live bokeh shows what’s in focus and what isn’t — before you shoot. LiDAR distance measurement (iPhone Pro) feeds the distance into the DoF calculation automatically.