Flash Capture (Burst Mode)

Take a rapid series of screenshots automatically — perfect for documenting multi-step UI flows.

Flash Capture fires at a set interval using your last captured region. All screenshots are automatically grouped into a collapsible burst series in your capture history.

How to use it

  1. Capture a region first — Flash Capture reuses your last capture area. If you haven’t captured anything yet, it defaults to fullscreen.
  2. Press Ctrl+Alt+B to start the burst. A 3-2-1 countdown appears, then captures begin.
  3. Press Esc to stop.

All captures from the burst appear grouped in the thumbnail strip (e.g. “flash-2026-04-02-14h30”). Click the group to expand or collapse it.

Controls during a burst

You can adjust on the fly without stopping:

Key Action
Esc Stop burst
B Pause / resume
F Single-step mode — capture one frame per press
S Skip current frame
R Restart with a new series name
H Hide / show the info panel
+ / - Speed up / slow down interval by 50 ms

Tips & gotchas

  • Flash Capture needs a previously saved region. Run a regular capture first if starting fresh.
  • If Save to Disk is off in settings, burst captures are memory-only and lost when Blue Synergy closes. A warning will remind you.
  • The floating info panel can cover part of your screen — press H to hide it while capturing.
  • Burst captures use their own grouping system and do not appear in your tag list.

Configuration

Setting Default Description
Hotkey Ctrl+Alt+B Global shortcut to start / stop burst
Max shots 10 Maximum captures per burst (up to 500)
Interval 500 ms Time between captures (minimum 100 ms)
Timeout 120 s Burst auto-stops after this long
Show info panel On Show the floating overlay during burst

Find these under Settings → Captures → Flash Capture.

See also