Chronodev vs Photo Timers

Transform your iPhone into an enlarger timer using Chronodev. Chronodev uses HomeKit-enabled wall plugs and lightbulbs to control your enlarger and safelights. Secondhand enlarger timers can be expensive and hard to find. This one costs the price of a wi-fi wall plug. - Control your enlarger and safelight with your iPhone or iPad - Expose prints accurately using the HomeKit-enabled timer - Manual enlarger control for focusing - Use the metronome for dodging and burning - Adjust times using EV stops - Automatically create test strips with incremental exposures, and keep track of exposure times using a handy graph - Automatically turn your safelight off when exposing/focusing - Voice control support for hands-free development - Safe to use in black and white darkrooms when using iOS's built-in red color filter A HomeKit-enabled wall plug and/or lightbulb is required to use all features of this app. Some features (like a basic timer and EV stop calculations) are available without a HomeKit-enabled device.

This app consists of three timers for analog photographers: Long Exposure Timer provides both a visible and audible pulse, allowing you to time long exposures without needing to look at your phone. You can place the phone in your pocket, wear a Bluetooth earbud, and let the pulse help you count seconds. Parallel Development Timer allows you to time each development tank independently, based on the specific process required. Dark Room Timer features a dim display suitable for darkroom use. The timer can be reset by slightly raising the phone by a few millimeters from a corner, even while wearing latex or safety gloves. You can return to the main view by swiping left or right on any of the individual timers or on this help page.