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Xophedebx Nov 26, 2006 4:51 AM


I upgraded this week from a Panasonic FZ5 to a Canon G7. As usual, I'll put some stuff about it on my site. You will already find some links, settings, ISO tests and my DOF Excel file.


Xophedebx Dec 3, 2006 3:38 AM


Now: Aperture approximations + adapted DOF file with aperture and hyperfocal distances.

kassandro Dec 4, 2006 2:16 PM

In your iso test shots the photographic subject has very little fine detail, whence you can only guess, how much detail is getting lost by noise reduction at high iso. In general Canon cameras favor detail over low noise, but it would be nice to see it in the tests.

Xophedebx Dec 4, 2006 2:38 PM


The level of detail is for me always OK (till 400 iso), except maybe the loss of structure of the hair of a subject when long exposure enables the specific noise treatment (long exposure also generates noise) or when high iso setting is used.

More on that stuff on:


cgl88 Dec 18, 2006 6:56 AM

Your site has a promising start. May we request various tests?

Red eye:
In one of these threads someone mentioned a -1 EV setting for the flash and slow sync to eliminate red eye. Does it really work?


a710 vs s3 indoor

Night photography:
How about some night shots using various aperture/shutter and ISO combinations?

6x Zoom:
Just how sharp are they?[align=center][/align]

Xophedebx Dec 19, 2006 2:52 PM


I was the one who mentioned that tip (slow sync + -1 EV flash setting).

First point: if and when I can avoid to use the flash, I let it off. Slow sync works as a "pre-flash mixed to the ambiant light". If you set less flash power at the same time, you will avoid many "burned" pictures anda lot ofred eyes (but the Auto White Balance works then sometimes not as good as it should, so set ion manual WB). Well, it's not a magical tip but it works, especially if the room is not too dark and when the eyes of the subject have not to accomodate too much to the flash.

But the built in flash remains too close to the lense to have ALWAYS perfect results.

Night shots: not tried yet.

Lense sharpness: not tried aperture by aperture + focal by focal for theregular mode, but the macro position is really sharp at any aperture and at any focal distance, with a focus from 1 cm, really great.


Xophedebx Dec 22, 2006 4:05 PM

Site updated, with links to reviews (wher you will find night shots tests, iso comparisons, etc) and a test of my "anti red eye" tip.


Xophedebx Dec 23, 2006 11:28 AM

Site updated with IS tests


cgl88 Dec 23, 2006 3:48 PM

The red-eye reduction test does not look like it was very successful, because there is quite a bit more noise compared to one WITH red-eye. I prefer getting red eye and simply removing it in software.

For the IS tests, I would try outdoor shots with zoom. The reason is that in your samples, it is already difficult not to have blur when you zoom in so much. That's quite a challenge for the camera!!

Also, a random photo album hosted by flickr or google's picassa might add some variety for your review: some pics of everyday use instead of "lab" conditions.

Keep up the informative site. I have been researching other models but G7 is high on my list.

Xophedebx Dec 24, 2006 3:23 AM


I try to do the tests at the limits of the camera: so, red eye tip will function better in better light conditions than those of the test (I mean then less noise :-)). But you may prefere more definition and "flash signature", just question of choice.

IS test: again, indoor low light test was my way to push the IS to its limits. I think having a defined photo at 35 mm 80 iso with a 2.5 sec exposure proves it work very well, with an outdoor test , it would be more difficult to see the IS in action (behalve if I had a robot always making the same movements to shake the camera :O), because there the rule "do not expose slowlier than1/focal distance" would be enough to avoid blured pics most of the time (at least at the wide angle position).

About day to day pictures, don't hesitate to join the Flickr group on

Merry Xmas


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