Is it possible to use an EyeFi or similar SDHC card in an oldish camera such as the Canon Powershot A620 that supports SD cards up to 2 GB only?
If not (what I would guess but the information concerning backwards compatibility are not that clear), what other (simple*) options do I have to transfer files wireless? I want to transfer jpeg and/or raw files (from chdk).
To give a bit more context, I have this old camera that works perfectly but is of almost no use to me any more thanks to my DSLR. But what it would be totally perfect for is shooting time lapse movies. It is small, light and can be gorillapodded/superclamped almost everywhere and thanks to CHDK I need no external trigger for time lapse shots. But the 2 GB limit stops me from using the camera for that purpose since the number of pictures that can be saved is insufficient for the timelapses I want to do with it. A wireless transfer by EyeFi seems almost a solution besides the HC in SDHC. Nevertheless, I think an answer to the more general question I posted would be useful for other purposes as well. Different solutions to my specific problem such as wired memory extension possibilities etc. are appreciated as well, maybe I have to repost them together with a more suitable question.
*Of course I could use a raspberry pi or another computer to shoot tethered, e.g. with gphoto, but this is not the kind of simple solution I have in mind.