The camera worked OK for SEVEN MONTHS... After that, JUST "PASSED AWAY".
ARMANDO R. VENEGAS "Omar Dan Ben-Gaz", Amazon
16 May 2012
Summary: Few months ago, I wrote a very favorable review for this Canon PowerShot SX 40HS. For carrying it got a very safe, fully padded carrying bag (Vivitar), and every time I used it I handled it with extremely care. Unfortunately, now I have to change my opinion to the completely opposite. I was pretty happy with the results of this camera: family portraits, nature (lots of skyline shots), night shots, low-light situations, Black/White shots...
Summary: I've owned a number of Canon products & they have always been excellent. But Canon really blew it on this one. The back of the camera has an indentation where the end of your thumb goes, as do many cameras. The probem is that the rest of your thumb is right over key controls which are VERY sensitive. So when you hold the camera as intended, settings are always changing because your thumb cannot help but contact the buttons.
Summary: This camera has a major design flaw. The front of the lens is threaded for what appears to be 52mm threaded accessories. However the thread is not a standard pitch and 52mm accessories such as filters and lens shades will not attach. Canon does make a filter adapter that bayonets on the outside of the lens but it requires you to use a 67mm filter. This makes the lens cap useless and destroys the relatively compact lines of the camera.
Summary: The main reason I will not upgrade from my SX10 IS to this one is the same reason I didn't upgrade to the SX30 IS: Canon's poor decision to use a proprietary battery instead of AAs like the SX10 IS does. If I were to get this camera, I would have to spend more for extra batteries, have to lug around more spare batteries, and deal with having to keep up with and lug around another battery charger or two.
Summary: I recently bought this camera and I was really happy with it. The overall quality is good. You can take some nice pictures and videos. Now, Yesterday I was playing with it with the intention of taking some starry night shots. I was extremely disappointed to notice that with long shots (more that 1 second exposure time) you can't use a higher ISO than 100. I have no idea why is that, but I've read other reviews about this issue and it is real.
Summary: Purchased this camera for an upgrade to my Fujifilm FinePix S100FS that I have enjoyed immensely for the last 3-4 years. It does all and everything I needed, but it was time to upgrade. I anxiously awaited the arrival of the Canon SX40 and patiently waited for the battery to charge. Once I was able to fire it up, I discovered that this camera only shoots pictures in JPEG! No where in the flowing description of this camera does it state this!
Summary: I hate this camera. It's slow to focus and the lens is soft throughout. Lots of features, but not much use if the standard of the final shot is bad - or you miss the shot altogether because it's so slow to focus. I hated it so I gave it away.
Summary: I sent this camera back to Amazon for a full refund due to the fact that it appeared to have a fault. I had high hopes for this camera after reading so many positive reviews but my copy got extremely hot on one side and the battery died after only 59 shots. The camera arrived at my door via a taxi driver contracted by Yodel, he gave me the camera box which had an address label stuck on it, no padding or packaging and not in any kind of box.