My G3 Pictures

[robh]

Hi,

Thought I might post some pix I have taken with my G3. Have had it a few months now and am slowly learning more and more about its little idiosyncrosies. These forums have helped a lot regarding focus problems etc. (ie using green on the CCD only to focus). All the comments about hyperfocal focussing have proved invaluable and have improved my results greatly. I bought a 420EZ flash for christmas and think it's absolutely great, especially when using bounce.

Anyway if you want to see some of my pix have at look at

http://home.iprimus.com.au/robholland/photos/

Any comments are welcome

Rob

[phili1]

Rob nice job, good composition, yoiu have a nice eye for photography.

[Gwen]

I'm reading thru some older messages in hopes of learning and came across your post here.

Tell me about using green on ccd to focus. I haven't come across any explanatinn of that yet.

Thanks,
Gwen

[robh]

Hi Gwen,

I have read through other posts here about how the focussing on the G3 works. when I find where they were I will post them for you, as they make very intersting reading. (and certainly improve your success rate on focussing)

Basically the G3/G5 only uses the green sensors of the CCD (the CCD is made up of red, Green and Blue sensors that when combined give the actual colour). This is also why the focus illuminator on the Canon flashes is disabled as they send out a red light pattern, which would be useless.

Each pixel if you like is made up of 4 such sensors (2 green, 1 red and 1 blue). I guess from having 2 green sensors make it more sensitive to green and why it is used to focus.

For the focus to work properly you need subjects that have some green content (making faces in particular a problem), and also contrast in the vertical plane (this means for example if you are taking a picture of a flat landscape with only a horizontal contrast the G3/G5 will have problems. (solution is to turn the camera vertically to focus lock first or focus manually on infinity).

Hope this is of some help.

The G3 takes absolutely brilliant, sharp photographs if you get the focus correct (but this sometimes can be frustrating). A point and shoot camera it is not..

cheers... Rob

[rangersvtsplash]

hope you meant the 420ex

[robh]

Yes you are correct about the flash (420EX). But from hat I have read on these forums it is all Canon Flashes designed for EOS as well. This seems logical.

... Rob