What Is the Difference Between SD & CF Memory?

Significance

• Compact Flash and Secure Digital Flash are both types of memory cards for digital cameras. While digital cameras have some built-in storage, a memory card allows users to save more photos or folders of a higher quality or size.
  
  

Function

• Compact Flash memory cards are a type of solid state memory. In comparison, a Secure Digital memory card is actually a type of hard disk that contains a tiny, spinning hard drive.
  
  

Size

• Secure Digital cards can hold up to 2GB of storage. According to the Compact Flash association, the smallest Contact Flash card holds between 2GB and 137GB of data such as pictures or videos.
  
  

Types

• According to Bob Atkins, who runs a website about Canon cameras, there are two types of Compact Flash memory cards. Type I has a size of 36.4 x 42.8 x 3.3mm while Type II has the following dimensions: 36.4 x 42.8 x 5.0mm.
  
  

Considerations

• A camera may only accept a specific type of memory card. According to Bob Atkins, all Canon EOS DSLRs cameras accept both types of Compact Flash memory cards, while other cameras may not.