What SD Memory Card do I need?
The following assumptions were made to calculate the number of images per card:
MP = 1,000,000 pixels
1MB = 1,000,000 bytes, 1GB = 1,000MB
TIFF image has 24 bit color depth, one of 16,777,216 colors per pixel
JPEG 100% Quality = Visually lossless JPEG compression with 1:10 ratio of RAW image
Photos - Compressed (JPEG 100% quality) Images per card.
NOTE: JPEG is the most common file format for consumer cameras.
Number of pictures
Megapixels File size (MB) 4GB 8GB 16GB 32GB 64GB
4MP 1.2 2,861 5,722 11,444 22,888 45,776
10MP 3.0 1,114 2,228 4,577 9,155 18,310
22MP 6.6 520 1,040 2,080 4,161 8,322
Photos-Uncompressed Raw (24 bits per pixel) Images per card
Megapixels File size (MB) 4GB 8GB 16GB 32GB 64GB
4MP 12.0 286 572 1,144 2,288 4,577
10MP 30.0 111 222 457 915 1,831
22MP 60.6 52 104 208 416 832