First UW Camera Selection

[lmorin]

According to DPREVIEW.COM , effective pixels are the same. The 570 shoots at 1/1600 and the 710 at 1/800 highest ISO. White balance override 5 positions for 570; 6 pos. for 710. Up to 60 ffps movie clips by 570; max 30 fps for 710. The 570 can take SDHC storage cards. The 570 focuses to 5 cm; the 720 to 1 cm. The aperture ranges are also different F2.6 - F5.5 (570) F2.8 - F4.8 (720).

 

[ryan115]

I am just starting to get into digital photo, I have played around with some other p&s cameras before, but never really knew what I was doing when altering other settings. I get the focus length, and the fps for video. But what exactly do the different ISO #'s and the aperature #;s mean? I understand the aperature works like the iris of your eye, controlling the amount of light entering into your eye(camera) but I dont know the difference in the numbers. Thanks

 

[jbmooney]

Ryan, here's a good short tutorial that covers the subject's basic concepts.

Warning - the comparison in the above post is interesting, but is referring to the A710, not the A720IS.

 

[ryan115]

Thanks mooney, that did help to clear thing up a good amount.

 

[sunnyboy]

I just bought the Canon A570IS and an Ikelite housing. I absolutely love the pair. The camera is great on land, and in the housing it's very sweet.

The only complaint that I have is the mode dial cannot be controlled in the underwater housing. There's a control for it, but it's a sponge-rubber disk that simply can't grip the dial firmly enough to allow the (stiff) dial to turn.

Otherwise I'd recommend the combination. It's certainly cheaper than many other options.

-S

 

[alcina]

My two 570 and housings work slick, no problems at all - just sent them out with two people with no uw photo experience and they had no problems, so I know everything is working I know it's not perfect, but try pushing down slightly as you turn the dial, that should help it "grab".

 

[diver 85]

My two 570 and housings work slick, no problems at all - just sent them out with two people with no uw photo experience and they had no problems, so I know everything is working I know it's not perfect, but try pushing down slightly as you turn the dial, that should help it "grab".

Do you have the Canon or Ikilite housings(or maybe both)???---my Canon works the wheel just fine.........btw, loved your snake pic from last month......you're still the best...........

 

[sunnyboy]

Nope - the Ikelite housing is totally incapable of grabbing the wheel with enough force to move it. It's pure friction, and that wheel needs more than just friction.

-S

 

[mikerault]

You may have lost the end pad, I did on mine for the Canon 20D and it just won't reach the dial...

 

[diver 85]

Nope - the Ikelite housing is totally incapable of grabbing the wheel with enough force to move it. It's pure friction, and that wheel needs more than just friction.

-S

Let me get this straight ....you're talking about the wheel that changes from Av, to SCN, to video, to all the different modes, right???........

Edit...found this pic, the wheel @ the top here with 'teeth' on it.......

http://www.letsgodigital.org/images/producten/1525/testrapport/canon-powershot-a570is_2A.jpg