I have a Sony DCS T-1, what newer Sony models are compatible to the accessories, batteries and memory cards?
I also have a DSC T-1, and I've been looking at the DSC T-100, which is a 8.2MB camera with 5x OPTICAL zoom, image stabilization, facial recognition (for auto focusing), and it allows you to zoom while recording a video. The T-100 appears to be a great camera, and if you look carefully, you can find one for under US$300. A friend just got the DSC T-20 which has some of those features. As far as I can tell, neither use the same batteries, but the memory cards are the same, and while I'm not entirely sure, I think the data/power cable plug is the same. The batteries may not be that much of an issue because the charge life of my T-1 batteries is pretty degraded, especially when compared to my friend's brand new T-20. Hope this helps.
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