CF vs SD

[Hutchison Haines]

I was wondering what the benefits of CF and SD cards are over each other.

What would make a manufacturer choose to have a CF slot or an SD slot, why do Pro cameras use only CF cards, when for size an SD card is more convenient?

 

[arad85]

Speed. CF cards have a parallel interface so you can read and write to/from them quicker. They are more expensive though.

 

[Phil V]

CF cards are faster and arguably more robust. Given that pro cameras tend to be larger, why not make space for the better card slot.

Although a couple of new pro cameras are including a CF and an SD slot, rather than 2 CF's, so there is a shift.