I thought that would be the case, that is what I meant by an 'external' intervalometer, sorry for any confusion! Do you think a remote/intervalometer that will work with the a55, will be (or is) available?
If so, how would it connect to the camera? ie would it be with a cable or by wireless/infra-red? Is there a specific type that would work with the A55 or are there standard types of controller that work with various camera brands?
Could you recommend any remotes at all or point me in a particular direction of something that would be compatible with the A55? I'm quite happy to use a remote control by the way as an intervalometer isn't built in to the A55.
Sorry for all the questions, newb & all! Thanks for the replies.