The number of images your card will save depends on a number of factors:

• The resolution of your camera e.g. 3 Megapixel or 4 Megapixel
• The image quality setting of your camera e.g. Basic, Normal, Fine
• The compression format e.g. Jpeg (compressed)
  or TIF (uncompressed)
• The subject you are shooting

Below is a table that will give you an estimate of the number of images a memory card will hold:

*Please note - Actual number of images a memory card will store is dependent on camera manufacturer, image resolution and compression settings (Jpeg is compressed, TIF is uncompressed) selected on your camera.