Built-in light meterEV 12.3 · f/8 @ 1/250s · ISO 400 · incidentFree with Pellica
Frame 01 · light meter

The light meter
you already own.

Stop paying $299 for a handheld you use twice a month. Pellica's meter is free, calibrated against a Sekonic L-858, and logs straight to the frame you're about to shoot.

IncidentReflectedSpot · 5°Zone SystemISO 6–12800
Three modes · frame 02

Incident. Reflected. Spot.
Pick the right one for the shot.

Mode 01 · default

Incident metering

Point your phone at the light source — or better, stand where your subject is standing and aim the camera back at you. Pellica uses the front camera + a digital diffuse-dome model calibrated against a Sekonic L-858.

Use whenYou can get to where your subject is. Best for portraits, studio, controlled light. Most accurate mode.
Mode 02 · fallback

Reflected metering

Point the rear camera at what you want to meter. Pellica averages the scene using a center-weighted pattern that matches the metering curve of a classic Pentax Spotmatic.

Use whenYou can’t physically reach the subject. Landscapes, street, concerts. Apply compensation for snow / shadow / backlight.
Mode 03 · precision

Spot metering (5°)

Tap anywhere on the live preview to meter that exact zone. 5° cone, matches most hand-held spot meters. Includes a Zone System overlay (0–X) for Ansel-style previsualization.

Use whenHigh-contrast scenes. Sheet film. Black-and-white work where you place shadows on Zone III.
Bonus · filter compensation

Filter factors, handled.

Stack a yellow #8, an orange #21, and an ND 0.9. Pellica does the math — 5⅓ stops — and gives you the corrected shutter instantly. 40+ filters in the library, or enter a custom factor.

Use whenBlack-and-white, long exposure, or any time you’re using glass in front of your lens.
The numbers · frame 03

Calibrated. Tested. Trusted.

We tested Pellica against a Sekonic L-858 Speedmaster and a Gossen Digisix 2 across 1,200 readings in daylight, tungsten, mixed, and fluorescent light.

Avg delta vs Sekonic
±⅓EV
In incident mode, daylight conditions. Within half a stop at all times.
Reading speed
0.4s
From tap to exposure. Faster than racking a dial on a Gossen.
ISO range
6–12800
Every real-world film stock, including pushed Delta 3200 and pulled Acros.
Cost vs handheld
$0
Included in Pellica’s free tier. A Sekonic L-858 retails for $599.
Meter → Log · frame 04

Meter, then log it — without switching screens.

01 · Meter

Hit the meter button

From any roll, one tap opens the meter with your current film’s ISO pre-filled.

02 · Read

Get the reading

Incident, reflected, or spot. Live, under 0.4 seconds.

03 · Shoot

Dial in the camera

Set aperture and shutter on your camera based on Pellica’s reading.

04 · Log

"Log to frame N"

One more tap. The reading, your adjustments, and the scene all become frame N of your roll.

Contact sheet · frame 05

Straight answers.

Accurate enough for film?

For 99% of shooting, yes — especially with negative film, which has 12+ stops of latitude. Within a third of a stop is more than enough for Portra or HP5. For critical slide work where a third stop matters, we recommend a handheld. Pellica’s spot mode is good enough for most Zone System work.

Does it use the flash / LED?

No. Pellica reads ambient light only. Flash metering is planned for a future update — we will ship it to both stores the day it is ready.

Does it work in low light?

Down to about EV 2 reliably (a dim room). Below that, the iPhone’s sensor noise starts to dominate and the reading gets noisy. For concerts and night photography, bracket anyway.

Can I calibrate it against my handheld?

Yes. Settings → Meter → Calibration offset. Set a permanent plus/minus third or half stop bias if your Sekonic reads differently in your studio.

Does the meter drain battery?

Barely. Readings use the back camera sensor briefly — about two seconds per reading. A full shoot day drains under 3% battery on a recent iPhone or Pixel.

Where can I get the meter?

Included free in Pellica on App Store and Google Play. No separate app, no in-app purchase — the meter is part of the core tracker.

End of frameReading logged · f/8 · 1/250s · frame 25Free on iOS and Android
Final frame

Download Pellica.
Leave the Sekonic at home.

The meter's included. Free, forever, calibrated. Your next roll starts looking better right now.

Get it on iOS — freeGet it on Android — free