optical image stabilization as opposed to electrical image stabilization. OIS is more effective. however, from what i have read, those two advantages cost about $300 more. any panasonic 3 ccd camcorder is said to be an excellent choice. the only difference again between the two models is OIS vs. EIS. that may not be enough to justify the increased cost.
regards,
richard
OK, here's my last question...for now at least. I just purchased the PSGV150, but then I was told by an employee at Best Buy that hte PVGS250 was much better for making short films. Should I upgrade to the 250, or just keep the 150?

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