Rating: 
Summary: This camera is excellent for the price.
Review: I bought two S400 cameras last week, and they are absolutely superb. Image quality is wonderful, it processes shots very quickly, controls are well laid out and easy to use, form factor is brilliant (small, compact, yet full-featured), battery lasts a long time, and the exterior is very robust. Maybe the only thing I'd want is a bit more zoom, and perhaps it could have come with a slightly larger CF card (32MB is a bit small for 4MP); I ended up buying a 128MB card to use with it, and will probably splurge for a 512MB if I take it on vacation.
Rating:
Summary: My first digital camera and is working out GREAT!
Review: This is my first digital camera and I love everything what this little Elph has to offer. It takes superb pictures and easy to operate. It's small enough to fix in my shirt pocket so I can carry it around with me when I'm on the road. I don't want to carry a brick! Did I mention it can record good quality movie clips too? Don't let the small size fools you. The S400 is packed with features and does a great job! The S400 won't disappoint you! Canon makes great cameras!!!
Rating: 
Summary: Excellent small size and light weight camera
Review: The metal body is really v good - feels durable and strong but light weight and no fignerprints ever! Pictures come out v clear (as expected from a Canon) and the battery is light weight too. Not too many manual controls though, and if you compare the manuals of S400 vs S45, you will see what I mean. (man many more pages in S45). But for point and click types, this is the best. (and now at a v great price too! @ amazon/other websites).
Rating:
Summary: Best Canon Powershot yet!
Review: I used to have a Powershot S110, but recently upgraded to the S400. They have really worked out a lot of the irritating little quirks that I had on the S110. It's easy to get to movie mode, and the scrolling buttons when viewing photos are now 4-way instead of 2-way. Menu navigation is easier, and even deleting photos takes less steps. I was concerned about the casing not being as durable as the ones on the S110, and wasn't sure why they went differently with the S400, but the brushed finish just makes it look that way. The rounded corners actually make it nicer to sit in your pocket. The flash is more powerful, just everything. Obviously you pay more for all the upgrades....so if you don't really need 4.0 megapixels, then maybe consider the new SD100. But, the images and their new DIGIC chip are top notch. I just ordered the underwater housing for the S400, so I can't wait to try it out!
Rating:
Summary: The Canon line gets better
Review: I have owned the last two generations of the Powershot family. Not only does this one have more pixels, but it is even more precisely engineered, more compact and with a better user interface. No complaints and with 1 GB flashcard, can take 800+ shots at full resolution.
Rating:
Summary: love this thing! but beware - you'll need to spend extra $$
Review: definitely one of my best birthday gifts ever... i love my elph aps camera but wanted to upgrade to a compact digital... the s400 was a no-brainer, canon makes great cameras. this is a great camera for everyday use, especially for traveling. all the controls are teeny tiny, but once you get the hang of them taking pictures/movies becomes a piece of cake, picture quality is great, however i wish there was a higher resolution for shooting movie clips. the only downer is that i had to spend approx. an extra $200 to maintain the camera! the battery life is somewhat short - downloading to the computer pretty much drains the entire battery, the camera doesn't come with a case (since when did canon get so cheap? my elph came with a case, which now sells separately for about $15), and the lcd screen is on the outside so a case is a must to protect this. i definitely recommend getting the adapter kit (about $60), this saves battery life and is a must when downloading to your hard drive. the only weird thing is the cable connects to the camera bottom, so the camera is at an awkward angle when the side is connected to the usb port and the bottom is connected to the adapter... you sort of have to lean it on its side or risk having it fall on the lcd screen or lens. also recommend getting the accessory pack (about $80). this comes with a nice carrying bag, a camera case and an extra battery. lastly, i recommend getting a larger memory card (got the 256 mb flash card for about $60). the 32 mb that comes with the camera is nothing. i probably spent big $$$ overall on the camera, but the quality & ease of use make up for this.
Rating:
Summary: Excellent camera
Review: I tend to shop around before I buy anything. After much research, I bought the S45. It was a great camera. No real complaints. But, a week or two later, the S400 was released. The combination of features...including the improved optical and digital zoom made it a no-brainer. I sold my S45 and bought the S400. I LOVE the small size. And, while the S45 was great, it was too much camera for me at this point. The S400 is all I need. My only complaint is that when the battery does run down, everything slows down a bit. But, that's true of many digital cameras. (Battery life has been phenomenal thus far.) In regard to ease of use and quality of pictures---EXCELLENT. I took my S400 on African Safari...and the pictures are awesome. Other folks on the tour had larger cameras and more powerful lenses...but, in the end, it didn't make that much of a difference. I have tons of pics that are high enough quality to make 8x10 enlargements. The camera did well mid-day with the sun overhead, at dusk and sunrise (GREAT silhouette photos!!). At night, there were a couple of indoor pics that were too bright...but I typically only used the auto mode. I imagine that once I become more familiar with the manual mode, that won't be much of a problem. The camera also went with me on a trip to Mexico...where it easily fit into my pocket as I walked on the beach or went out to dinner with my friends. I highly recommend this one. It's a great little camera. I've been very happy with it.
Rating:
Summary: a mighty mite!
Review: an excellent point and shoot camera which produces superb images with minimal effort. the DIGIC processor or ISAPS does seem to make a difference compared with powershot s40. do not purchase if you are expecting a lot of manual functions. read the manual to get the most out of this camera.
Rating:
Summary: A solid, albeit unspectacular, performer.
Review: I have had lots of digital Canons and have found them all to be high quality and quite durable. The PowerShot S400 is no exception, though it is not a perfect choice, in my opinion.
It has great resolution (enough to make great 11" x 14" enlargements) and an adequate zoom (3X optical and a less useful 3.6X digital zoom). The 3 full minutes of video (with sound) it can shoot also make it handy as a crude camcorder in a pinch.
It is however, not a digital Elph (as its S400 designation might suggest) and therefore it is not as svelte. It is also hampered by having only the Canon proprietary battery & charger for power (you cannot imagine when traveling how helpful the disposable battery option can be!) and by a too-small memory card which needs to be immediately upgraded if the camera is to prove useful. Lastly, the price is a bit high for the specs, in my opinion. Nonetheless, if someone were to give you this camera as a gift, I'm sure you would be most satisfied.
Rating:
Summary: Great camera in a small package with little sacrifice
Review: This camera is a gem for those of us who like to take a lot of snapshots, don't want to lug around a big camera and still expect full features and excellent picture quality. Look and feel are superior. The menu and features are easy to master after only a brief tutorial with the users manual (which is relatively easy to use). Different flash settings are great and easy to use. My only wish is that the battery was not proprietary. The rechargeable is fine, but if you run out of juice while on the road, you cannot use standard batteries to get you going again - you need to recharge or have a relatively expensive backup charged and ready to go.
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