Occult Flash Tag

This app uses the phone's flash to mark videos with high accuracy (milliseconds). It is mainly used for analog video cameras that do not have a device for timing the video while recording. The major use is for Astronomy Occultation events.

Just pick two schedules (UTC) prior to the event to be observed, a few minutes before and a few minutes later.

In time the camera turns on the flash and the CCD sensor coupled to the telescope will record a high-brightness frame (white) easily detectable later.

The precise time will be shown in the app after the NTP checking.


How to use:

1 - Start recording the video
2 - Set the start/end time in the app for a few minutes before the event (occultation).
3 - Place the device near the telescope tube (front), with the flash pointed at mirror.
4 - Press the start button and wait
5 - After recording the video, store the values shown in the app in the audit field.

Then just select the frames with high brightness. They will match the schedule indicated in the app, with millisecond precision.


The app is open-source (Apache License 2.0) and developers are welcome.
Read more
Collapse
4.6
8 total
5
4
3
2
1
Loading…

What's New

Solved the flash bug does not work
Can select flash time for intensity control
Analytics
Read more
Collapse

Additional Information

Updated
November 15, 2019
Size
2.4M
Installs
500+
Current Version
1.1
Requires Android
4.1 and up
Content Rating
Everyone
Permissions
Offered By
Erick Couto
©2020 GoogleSite Terms of ServicePrivacyDevelopersAbout Google|Location: United StatesLanguage: English (United States)
By purchasing this item, you are transacting with Google Payments and agreeing to the Google Payments Terms of Service and Privacy Notice.