FocusChart

2.3
6 reviews
100+
Downloads
Content rating
Everyone
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About this app

FocusChart helps you deal with the problems of front-focus or back-focus of your dslr camera.

It often happens that when you focus on a subject, it does not appear razor sharp on the photo as it should. Sometimes, the elements in the front are sharper, that is a front focus. Sometimes, elements behind are sharper, that is a back focus.

Using FocusChart, you can take pictures with a precise measure of the focus shift. Then with the autofocus micro adjustment of your camera, you can set it to correct the problem and have razor sharp images (finally).

FocusChart provides you several charts to help you fine tune the autofocus of your camera.

Lenscal chart
This chart is based on the famous Spyder LENSCAL. It is made of a contrasted target and a ruler to measure the autofocus shift. In order to use it properly, you need to incline your android device to 45° from the horizontal plan. In order to do so, a spirit level is included in the app that shows you when the angle is correct.
To ensure the chart is clearly visible from your camera point of view, you can zoom in/out every element with a pinch-to-zoom gesture.

Ruler chart
This chart displays only a ruler. Make the focus on the 0 line and measure the autofocus shift right away. As previously, ensure the angle is 45° from the horizontal. You can stretch the ruler in or out with a pinch-to-zoom gesture.
When double-tapped, the ruler is set to be graduated in centimeter.

Moiré chart
Usint the (two) moiré charts available, when the focus is correctly made, the photo will show ... moiré(!). This is also a very accurate way of knowing if the autofocus is perfectly tuned.
To use it, put your android device vertically, the spirit level will help you set the android device to 90°. Take the photo and control it on the rear screen.



Don't hesitate to contact us if you wish to see more different charts in the app.
Updated on
Jul 28, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
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No data collected
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Ratings and reviews

2.3
6 reviews
Zach “Zachy” Nash
July 28, 2022
App would not open! I tried multiple times adding + removing the app. Still nothing. Waste of time and money, get a coffee instead. (Real rating "0/5")
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caketuzz
July 28, 2022
hello, new release 1.3 should fix the issue
A Google user
May 23, 2018
It's ok. But the level is not working.
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What's new

fix opening bug in android 12