"Sufficient, what is" - well, what is that? This is a very cheap, you could even say almost disposable underwater camera. Read underwater camera reviews and you'll find complaints about water leaks, so none of these products are perfect. I think it's better to have a cheaper model with some compromises where neither alternative will have perfect water protection, picture quality or ergonomics because if something goes wrong you can just buy another one. frivolous underwater photographer; if so, I would like to have an SLR with an expensive underwater housing. What I really wanted was something that could take a little damage and go underwater, and as a bonus, even survive so it could be used again in a similar way. This is in itself an improvement over any standard compact camera, which (and I know this from experience) will die a quick and hopefully painless death after just one odd, albeit accidental, foray into the salty depths. The TS20 is very small, very light and the actual seal looks very flimsy, but it works. Just don't expect a solid "sealed vault" from the door - it closes, that's all, and keeps water out. The quality is about what you'd expect (good in good light, abysmal otherwise) but you get photos you wouldn't otherwise have. The 16-megapixel resolution is just a marketing spec; In terms of quality, a raw 16-megapixel image from something like the Nikon D7000 will be on a different planet than what comes out of the TS20. But then again, the D7000 doesn't dive under water. In summary, it's good for its purpose - just understand what it is and you'll be fine as long as it's good enough to meet your needs.
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