Have any of you used both?
Consumer Reports seems to give a slight edge to the A650 IS, which surprised me...
I have not used both cameras, but I just bought a G9 this week and am very happy with my purchase.
When I compare the specs sheet for the G9 vs. the A650IS, this is what I see:
- The G9 and the 650 both offer an effective resolution of 12.1 Million Pixels.
-The G9 offers you the ability to shoot in RAW, and the 650 does not.
-The G9 offers video recording at 1024 x 768 @ 15fps and the 650 only offers 640 x 480 @ 30fps.
-They both offer 6 x's optical zoom and 4 x's digital zoom (35mm - 210mm equivalent).
-They both have roughly equivalent focal range.
-They both offer equivalent sensitivity (ISO Range).
-The G9 offers a bit higher shutter speed (15 to 1/2500) as compared to the 650's (15 to 1/2000).
-The G9 offers an aperture range up to f11, as compared to the 650's range up to f8.
-They both offer similar exposure moves (i.e., shutter priority, aperature priority, manual, etc.), except the G9 offers the option of programing 2 seperate custom settings, which is very convenient.
-The G9 offers a hot shoe for external flash connection and the 650 does not.
-The 650 uses AA Batteries, which includes the ability to use NiMH rechargeables, which is a very nice feature! The G9 uses a large lithium battery (same battery used on the 400 XTi), which offers the abitlity to shoot approx. 220 shots with the use of the flash, but the ability to use high-end AA rechargeables would still be nice.
-They both offer the ability to connect to the computer utilizing a USB High Speed Connection.
-The G9 offers a 3" LCD w/ 230,000 pixels with wide biewing angle, and the 650 only offers a 2.5" LCD w/ 173,000 pixels with wide viewing angle. That's a HUGE selling point for me, because I want a large LCD with high resolution, as it makes all the difference in the world underwater.
- They are both roughly equivalent in size, but the G9 weighs approximately 7/10's of an ounce more.
-At B&H Photo, the G9 costs $479.95 as compared to the 650, which costs $299.95.
-They both offer reasonably inexpensive Canon Underwater Housings, but neither housing accepts after-market external mount bases because of the oval lens base, which makes it difficult or impossible to connect an optical cable for external strobles. Furthermore, even with an Ikelite housing, the 650 will not offer ttl, because of the lack of a hot shoe, which the G9 does offer. Also, according to the Ikelite website, the 650 does not offer an adaptor to connect Inon and/or Epoque lenses, unlike the G9.
In my opinion, they both appear to be very good cameras, but if money is not the primary determining factor, I like the G9, because of the increased options connection ttl capable strobes and lenses to the Ikelite Housing, and because of the larger and higher resolution LCD. Furthermomre, the higher resolution video recording resolution and the higher aperature range of the G9 also helps me lean in its favor. However, the ability of the 650 to accept AA Batteries is a very nice feature that I wish the G9 had.
Obviously, I went with the G9 instead of the 650, so take my opinion with a grain of salt - But I did try to lay out a reasonably objective side-by-side comparison of both cameras.