LMC 8.4 Slow Motion Video – How to Enable and Use

Capturing a splash, a jump, or a fast swing in real time loses the detail that makes it interesting. LMC 8.4 slow motion video slows footage down to reveal that detail, but it only works well once frame rate and lighting are set up right.

How Do You Enable Slow Motion Video in LMC 8.4?

LMC 8.4 inherited its slow motion implementation from the Pixel Camera codebase, which captures at a higher native frame rate, then plays back at standard 30fps to create the slowed effect.

This matters because slow motion isn’t just “recording longer” — it fundamentally records more frames per second than normal video, which is why file sizes and lighting requirements differ significantly from standard recording.

The sections below cover exact frame rate options, storage requirements, common quality issues, and how to fix slow motion when it doesn’t work correctly.

What Frame Rates Does LMC 8.4 Support for Slow Motion?

LMC 8.4 supports 120fps and 240fps slow motion on phones with compatible hardware, with 120fps working on most Camera2 API Level 3 devices and 240fps limited to higher-end chipsets.

Recording at 120fps and playing back at the standard 30fps produces 4x slower footage, while 240fps produces 8x slower footage — useful for capturing very fast motion like a bouncing ball or a bursting balloon.

Not every phone’s sensor and processor combination supports both rates. Budget phones with MediaTek Helio chipsets often cap out at 120fps, while flagship Snapdragon and Exynos chips more commonly unlock 240fps.

How Much Storage Does Slow Motion Video Use?

Slow motion video at 120fps uses roughly 4 times the storage of standard 30fps video for the same recording duration, since it captures four times as many frames per second.

A 10-second clip at 120fps can produce a file between 150MB and 250MB depending on resolution, compared to roughly 40-60MB for the same duration at standard frame rate.

Before a long slow motion recording session, checking available storage prevents an interrupted clip — LMC 8.4 stops recording automatically once storage runs critically low.

How Do You Get Smooth Results Without Camera Shake?

Brace your phone against a stable surface or use a tripod, since slow motion footage makes even minor hand shake far more visible once played back at reduced speed.

Motion that looks negligible at normal speed becomes an obvious wobble once stretched across 4x or 8x the playback time, which is why stabilization matters more here than in standard video.

If a tripod isn’t available, bracing your elbows against your body while holding the phone with both hands significantly reduces visible shake in the slowed footage.

Does Lighting Affect Slow Motion Quality?

Yes, slow motion needs significantly more light than standard video, since capturing 120 or 240 frames per second gives each individual frame far less time to gather light than a standard 30fps frame.

Shooting slow motion indoors or in overcast conditions often produces visibly darker, noisier footage compared to the same scene recorded at standard frame rate.

Outdoor daylight remains the most reliable condition for clean slow motion footage. Indoor slow motion generally needs bright, even lighting to avoid a grainy result.

How Do You Edit Slow Motion Clips After Recording?

Import the clip into an editing app like CapCut or Premiere Rush, which automatically detects the higher frame rate and lets you choose exactly where the slow motion effect begins and ends within the clip.

LMC 8.4 saves slow motion clips already slowed down in playback by default, but editing apps can extract the original high frame rate footage to apply slow motion only to specific portions.

Trimming the clip to just the key moment before exporting keeps file sizes manageable for sharing, since full slow motion clips can run large even for short recordings.

Why Does Slow Motion Look Choppy on Some Phones?

Choppy slow motion usually means the phone’s processor can’t sustain the target frame rate consistently, causing dropped frames that show up as stutter once played back slowed down.

This is more common on budget MediaTek-based phones attempting 240fps, a rate their processors weren’t designed to sustain reliably, compared to the same phones handling 120fps without issue.

Switching down to 120fps on phones that struggle with 240fps usually resolves choppy playback, trading maximum slow-motion effect for consistent, smooth footage.

How Do You Fix LMC 8.4 Slow Motion Video Not Working?

If slow motion video doesn’t appear as an option or fails to record, check that your phone’s Camera2 API level supports high frame rate capture, since this is a hardware requirement LMC 8.4 can’t work around.

Clearing LMC 8.4’s app cache and confirming you’re on the latest build resolves most software-level issues where the slow motion option is present but recording fails.

If the option is missing entirely from the Video mode menu, your phone’s hardware likely doesn’t support high frame rate capture at all, regardless of app version.

Conclusion

LMC 8.4 slow motion video works best at 120fps in bright daylight with the phone braced against a stable surface, since both frame rate and lighting directly affect how clean the final footage looks. Checking your phone’s Camera2 API support first prevents troubleshooting a feature your hardware simply doesn’t support. For more setup guides and downloads, visit the LMC Camera homepage.

Does LMC 8.4 support 240fps slow motion on all phones?

No, 240fps requires stronger processing hardware than 120fps, so it’s typically limited to flagship Snapdragon or Exynos chipsets. Budget phones with MediaTek Helio processors often only support 120fps slow motion reliably. Check your phone’s Video mode menu to see which frame rates LMC 8.4 offers for your specific hardware.

Can I record slow motion video indoors with LMC 8.4?

Yes, but indoor slow motion needs bright, even lighting to avoid noisy, grainy footage, since higher frame rates give each frame less time to gather light. A well-lit room near a window works better than dim indoor lighting. Outdoor daylight remains the most reliable condition for clean slow motion results.

Why is my LMC 8.4 slow motion video so large in file size?

Slow motion at 120fps captures roughly four times as many frames per second as standard video, which directly increases file size for the same recording duration. A 10-second clip can run 150MB to 250MB depending on resolution and frame rate. Trimming clips to just the key moment before saving or sharing helps manage storage.

Does slow motion recording drain battery faster?

Yes, capturing at 120fps or 240fps requires significantly more processing power than standard video, which increases battery drain during recording. Extended slow motion sessions can noticeably reduce battery life compared to equivalent standard video recording time. Keeping slow motion clips short and purposeful helps manage this.

Can I convert a normal video into slow motion after recording?

Not with the same quality as native slow motion capture. Slowing down standard 30fps footage in an editing app creates visible stutter, since there aren’t enough original frames to fill the slowed playback smoothly. LMC 8.4’s dedicated slow motion mode captures the extra frames needed for smooth results from the start.

Does LMC 8.4 support slow motion with the front camera?

This depends on your specific phone’s front camera hardware and Camera2 API support, since not every front sensor supports high frame rate capture. Most phones limit slow motion to the rear camera, where hardware more commonly supports the higher frame rates required. Check LMC 8.4’s Video mode menu while using the front camera to see if the option appears.