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Memory Card Capacity Formula:
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Memory card megapixel calculation helps photographers and videographers estimate the storage capacity needed for their memory cards based on camera resolution, number of photos, and file size per megapixel. This ensures you have adequate storage for your shooting sessions.
The calculator uses the memory card capacity formula:
Where:
Explanation: The equation calculates the total storage capacity required by multiplying the camera's resolution by the number of photos and the file size factor per megapixel.
Details: Proper capacity planning prevents running out of storage during important shoots, allows for efficient workflow management, and helps photographers choose the right memory cards for their specific needs and camera equipment.
Tips: Enter camera megapixels, estimated number of photos, and file size factor (typically 0.3-1.0 MB/MP depending on compression and format). All values must be positive numbers.
Q1: What is a typical file size factor value?
A: For JPEG format, it's typically 0.3-0.8 MB/MP. For RAW format, it can range from 0.8-2.0 MB/MP depending on the camera manufacturer and compression.
Q2: How does compression affect file size?
A: Higher compression (lower quality settings) reduces file size, while lower compression (higher quality) increases file size per megapixel.
Q3: Should I include buffer for video recording?
A: Yes, if you plan to record video, add additional capacity as video files require significantly more storage space than photos.
Q4: How does bit depth affect file size?
A: Higher bit depth (14-bit vs 12-bit) increases file size as more data is stored for each pixel.
Q5: What about memory card formatting overhead?
A: Always add 5-10% extra capacity to account for file system overhead and ensure you have some buffer space.