You have recorded a construction project for 3 years. You have 100,000 photos. Now, how long should the final video be?
If it's too short, it looks chaotic. If it's too long, it's boring.
For industrial and construction projects, the answer isn't a guess—it's a calculation. This guide will help you determine the perfect duration for your project deliverables.
⏱️ The Golden Rules of Duration
Social Media Teaser: 15 - 30 Seconds.
Project Highlight Reel: 90 - 120 Seconds.
Archival Documentation: 5 - 10 Minutes (Chapterized).
1. The Math Behind the Magic
To plan your video length, you need to understand the relationship between Interval, Real Time, and Video Time.
The Formula
(Total Photos) ÷ (Frame Rate) = Video Duration (Seconds)
Standard Video Frame Rate = 30 fps (frames per second)
Example Calculation: A 3-Year Building
Project Duration: 3 Years (1,095 Days)
Shooting Interval: 1 photo every 10 minutes (daytime only) ≈ 70 photos/day
Total Photos: 70 × 1,095 = 76,650 photos
Raw Video Length: 76,650 ÷ 30 fps = 2,555 seconds (42 minutes!)
Wait, 42 minutes is too long! This is why Intelligent Culling is essential. You don't use every photo. You remove rainy days, nights, and weekends to get down to the "Golden 2 Minutes."
2. Recommended Durations by Use Case
Different stakeholders need different video lengths.
| Audience | Goal | Ideal Length |
|---|---|---|
| Instagram / TikTok | Viral Marketing | 15 - 30 Sec |
| Investors / Clients | Progress Report | 90 - 120 Sec |
| Engineering Team | Process Analysis | 5 - 10 Min |
3. How Farpov Simplifies This
Managing 100,000 photos manually is a nightmare. The Farpov Intelligent System automates the workflow.
☁️ Cloud Auto-Generation
Instead of waiting 3 years to see the result, the Farpov Cloud platform can generate monthly progress videos automatically.
You can download a 30-second "Last Month" clip instantly to share with stakeholders, without needing a video editor.
4. Expert Tip: The "Speed Ramping" Technique
For a professional look, don't keep the speed constant. Use Speed Ramping:
Fast: During slow periods (foundation work, bad weather).
Slow: During key milestones (steel topping out, glass installation).
This keeps the viewer engaged and highlights the most important parts of the construction.
Conclusion
There is no single "correct" length, but there is a correct strategy.
For a 3-year project, aim to capture more data than you need (every 10 minutes), and then use the Farpov Intelligent System to filter and condense that data into a powerful 2-minute story.
Ready to capture your masterpiece?
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