At some point I am going to have to decide between these cameras before\nI lose my mind...\n\nI was planning on grabbing the Canon S2 but the image noise at low\nISO's really threw me off. Im not going to pay 500$ for high noise at\nlow ISO's. Not my idea of fun. I wasn't impressed with the images I saw\neither.\n\nAnyway, the cameras I listed have very clean low ISO's, and still have\nlong zooms and video modes. However, I simply cannot decide and getting\nuser feedback would be *huge*.\n\nWhat I am planning on doing is shooting around 900 photos and 2 hours\nof video this July/August in Montana (northern Yellowstone and Glacier\nNational Park). Most of it will be camping, but a car will be nearby\nfor a majority of the days, so that will be the source of charging,\netc. I will need something that is reliable and that I can depend on.\nAll of these look like gems, but they all have weaknesses (The Z2 seems\nto have the fewest weaknesses so far). They all have 10x optical\n\nSo, requirements:\n\n1. ability to add telephoto lense later on\n2. good picture quality\n3. decent video capture, zooming during a big plus\n\n\nThe S5100 pros:\n\n1.nice fuji color\n2.fairly rugged build\n3.14x zoom lense at 2 megapixel option without quality loss\n4.crisp, clear video mode with good sound ,640x480 @30fps. Cannot zoom\nwhile recording, but you can adjust the zoom to place it where you want\nbefore recording (some cameras force your zoom to go flat)\n5. uses AA batteries\n6. AF lamp\n7. looks kinda cool\n8. RAW mode\n9. 3.1 at teleophoto\n10 comes with lense adapter, cover\n11.low noise at low ISO's\n12. bought new for 220$ thx to current rebate\n13. fast for a digi cam\n\n\ns5100 cons:\n\n1. that damn vignetting issue in top left corner\n2. no zoom during video recording\n3. limited compression options at 4mp\n4. video mode only 14 minutes on one gig card\n\n\nC770 pros:\n\n1. great image quality, well regarded in this area\n2. 14x smart zoom option at 2 megapixels\n3. plugging in external mic allows full zooming in movie mode\n4. 30 minutes of movie recording on 512mb card (mpeg 4 640x480@30fps),\ngood quality\n5. many options for compression\n6. huge amount of manual options and customizing\n7. rugged metal build\n8. small for a superzoom\n9. low noise at 64 and 100 ISO\n10. remote control\n\nC770 cons:\n\n1. weak proprietary battery, 150 photos per battery. have to buy\nseveral backups for upcoming trip\n2. no focus assist\n3. focus will hunt in low light\n4. slow to start up\n5. 285$\n6. video quality not as sharp as s5100\n7. Olympus seems like an "unfriendly" company, locking you out panorama\nmode if you dont buy their specific memory card\n\n\nZ2 pros:\n\n1. good image quality if a bit soft\n2. very fast camera\n3. fast focus\n4. very good video mode, 800x600 @15fps, 640x480@30 fps with sound and\noptical zooming\n5. uses AA batteries\n6. good manual options\n7. 191$ new thx to current rebate\n8. uses SD cards\n9. lcd works in low light and bright sun\n10. low noise at low ISO's\n\n\nz2 cons:\n\n1. kinda plasticky\n2. only 13 minutes of video on 1 gig card\n\n\n\n\n\nSo there you have it. Thx for letting me vent about this whole thing.\nIf anyone can offer insight or any tips that would be pretty cool.