Introduction
Camera resolution—measured in megapixels (MP)—determines how much detail your footage captures. More megapixels mean sharper images, but they also require more storage and bandwidth. Finding the right balance is key to a cost-effective surveillance system.
Understanding Resolution
A 2 MP camera records at 1920×1080 (Full HD). A 4 MP camera records at 2560×1440, providing roughly twice the pixel area. An 8 MP (4K) camera records at 3840×2160—four times the detail of Full HD. Higher resolution lets you digitally zoom into footage without losing clarity.
Comparison Table
| Spec | 2 MP (1080p) | 4 MP | 8 MP (4K) |
|---|---|---|---|
| Pixel Count | ~2 million | ~4 million | ~8 million |
| Storage per Day | ~15 GB | ~25 GB | ~45 GB |
| Digital Zoom | Limited | Good | Excellent |
| Best Use | Indoor / short range | General purpose | Wide areas / forensic detail |
| Cost | Lowest | Mid-range | Premium |
When 2 MP Is Enough
For indoor spaces like offices, retail counters, and corridors where the camera-to-subject distance is short (under 10 m), 2 MP Full HD provides excellent quality at the lowest storage cost.
When to Go 4 MP or Higher
Choose 4 MP for general outdoor areas, entrances, and car parks where you need to read licence plates or identify faces at moderate distances. Opt for 8 MP (4K) when covering very wide areas—warehouses, stadiums, open lots—where digital zoom is essential.
FastEgy Recommendation
Our go-to recommendation is 4 MP for most projects: it strikes the ideal balance of detail, storage, and price. We reserve 8 MP for critical evidence points. Contact FastEgy to plan the right mix for your site.
About FastEgy
FastEgy is a leading distributor of Hikvision, EZVIZ, and professional security solutions across Egypt. Visit fastegy.net or call us for expert consultation on your next surveillance project.