Luxilux Light Meter2.1 - App Store

You like using your old film camera but it doesn't have a built-in light meter?
The built-in meter is broken or requires special batteries?
With Luxilux you always have a light meter in your pocket.

--- METERING ---
Luxilux will take an average reading of the image you see in the preview.
Specify the area for the meter reading even more accurately by zooming in or out.
If your device has two or three back cameras, you can switch between them.
You can also tap on points of interest to expose correctly for them.

--- MODES ---
Use Luxilux in aperture priority mode (Av) by choosing the ISO and aperture, and Luxilux will calculate the right shutter speed to get a proper exposure.
Use it in shutter priority mode (Tv) by choosing the ISO and the shutter speed, and Luxilux will calculate the right aperture to get a proper exposure.
Manual mode (M) lets you change all values and shows you how much they differ from the calculated optimal exposure.

--- SAVE EXPOSURES ---
Tap "Save" and the currently selected settings are saved alongside a preview image into your photo library.
If you give location permission you can also save where the measurement was taken.
You can view your saved photos in Luxilux or in the Photos app.

--- PROFILES ---
You can choose between full stops, half stops or third stops for ISO, aperture and shutter speed.
Specify the minimum and maximum values that your combination of camera, lens and film supports.
Save these settings in profiles so you can quickly recall them.

Version History Added a Control Center control. You can now launch Luxilux from Control Center or your Lock Screen. 2.1 03/21/2025 Fixed an issue with initializing the camera 2.0.2 02/21/2025 fix a potential crash 2.0.1 10/18/2023 Luxilux 2.0 comes with a bunch of big new features:

LOG IMAGE DATA:
You can now save preview-sized images to your photo library that contain your chosen exposure settings, time and date, and the location where the image was taken.

PROFILES:
Create separate profiles for film and camera combination. You can store the maximum / minimum values as well as wether you want to use full, half or third stops in profiles. Choose the profile inside the app, or launch the app using a profile right from your home screen.

TAP TO EXPOSE:
In addition to the average metering of a scene you can now tap on an area of the image to expose for this part (just like in the Camera app).

MUCH MORE:
- Layout changes so you can see even more of the preview image
- Increased range of aperture and shutter speed values
- Increased possible exposure compensation to +10 (ideal for use with ND filters)
- Improved accuracy in tricky situations such as low light
- A bunch of bug fixes and improvements

Thanks a lot for your feedback!
If you like the update I would appreciate you reviewing it on the App Store.
If there is something wrong or you have ideas for further improvements, contact me at luxilux@christian-lobach.de 2.0 09/05/2023 Choose between four different app icons! 1.11 12/09/2021 bug fixes 1.10.2 12/04/2021 - extended the ranges for ISO, Aperture and Shutter Speed
- option to customize the minimum and maximum values in Settings
- bug fixes 1.10.1 11/24/2021 - extended the ranges for ISO, Aperture and Shutter Speed
- option to customize the minimum and maximum values in Settings 1.10 11/18/2021 Improved adjustment of values on smaller devices 1.9 10/03/2021 Digital Zoom:
You can now use the Pinch-to-zoom gesture on the camera view to narrow down the area for the meter reading. 1.8 08/17/2021 - Manual Metering Mode
You want to compare the accuracy of your camera's built-in meter, or you want to see how good your Sunny 16 guessing skills are?
Choose your aperture and shutter speed and see how many stops these settings differ from the correct exposure setting.

- Improvements for the iPad layout
- Bug fixes 1.7 04/14/2021 Added support for the 2.5x telephoto lens on the iPhone 12 Pro Max 1.6 11/02/2020 New app icon 1.5 09/01/2020 - Exposure compensation from -2EV to +2EV
- Expanded ISO range from 25 to 6400 1.4 08/03/2020 Chinese translation added 1.3.1 06/09/2020 If your device has two or three cameras, you can now switch between them.
This allows you to specify the area for the meter reading even more accurately. 1.3 05/05/2020 - haptic feedback when you change values
- accessibility improvements 1.2 01/28/2020 - you can now tap values directly
- fixes a visual glitch when using large text sizes
- fixes a selection issue after changing between full stops and 1/2 or 1/3 stops 1.1.1 12/30/2019 Choose between full stops, half stops or third stops for ISO, Aperture and Shutter speed. 1.1 11/22/2019 1.0 11/12/2019