illumeter 4+

illumeter, The Simplest Light Meter in Your Pocket.

- [New Feature!] It's time to start logging your exposures!
Do you find yourself sometimes forgetting the aperture value, shutter speed, ISO, and even where and when you took your shots?
Simply tap the red shutter button at the bottom of the screen to log your exposure!
Not only will the exposure and focal length be recorded, but also the date, time, and location.
You can review your logged exposures by tapping the film button at the bottom right corner.

- Let's begin by selecting the exposure measurement mode!
illumeter provides aperture, shutter speed, and ISO mode!
Aperture mode calculates the appropriate aperture value based on shutter speed and ISO settings.
Shutter speed mode calculates the appropriate shutter speed based on aperture and ISO settings
ISO mode calculates the appropriate ISO value based on aperture and shutter speed settings.
The resulting value is then displayed in the center of the screen.

- Then, adjust the settings values by manipulating the rings!
You can easily adjust aperture, shutter speed, and ISO settings by sliding the corresponding rings.
The value corresponding to the selected mode will be updated in real-time according to the adjusted values.

- You can also adjust the focal length!
You can adjust the focal length by manipulating the green focal length ring.
Try adjusting it to a focal length similar to your camera's, ranging from 28mm to 200mm.

- Need to lock in exposure settings?
Simply tap on the point where you want to lock the exposure and focus.
While the exposure is locked at that point, the value is calculated based on the fixed exposure.
You can release the exposure lock anytime by tapping the Unlock button.