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White Balance

Being based around an unchanged G3 engine the G5 performs identically to that camera. Good automatic white balance in natural light, a strong orange cast in incandescent and fluorescent light. The preset incandescent white balance worked well, fluorescent less so. Manual white balance will of course deliver the most accurate and consistent color balance.

Outdoors, Auto Outdoors, Cloudy (or Sunny) Outdoors, Manual
Incandescent, Auto Incandescent, Incandescent Incandescent, Manual
Fluorescent, Auto Fluorescent, Fluorescent (or H) Fluorescent, Manual

Macro Focus

The G5's best macro frame coverage (smallest possible area across the entire frame) was 55 mm (2.2 in) at full telephoto (140 mm equiv.). The good thing about this is that you won't see any barrel distortion. (Footnote: In our G3 review we incorrectly measured the best frame coverage at wide angle, in actual fact telephoto macro is considerably better).

Flash Performance

The G5's internal flash unit has a specified range of 5.0 m (16.4 ft) at wide angle) and 4.0 m (13.1 ft) at telephoto. No color cast, slightly underexposed.

Skin tone - Natural color, no blue cast, slightly underexposed. Color patches - Good color balance, no color cast, slightly underexposed.

Night exposures

The G5's automatic noise reduction system kicks in for exposures of 1.3 seconds or slower. It uses a 'dark frame subtraction' method which entails taking a second equally long exposure after the main shot (thus an 8 second exposure will take 16 seconds). This dark frame contains a similar noise pattern to the original shot and can be used to 'subtract' hot pixels from the final image. The G5 (and its five megapixel sensor) wasn't anywhere near as happy as the G3 with night exposures, 'hot pixels' and dark pits were visible in exposures longer than about 10 seconds.

Manual exposure: ISO 50, 8 sec, F2.8
Manual exposure: ISO 50, 15 sec, F4.0

Barrel and Pincushion Distortion

No surprises here, the same lens as the G3, the same result. At the wide angle end the lens exhibited approximately 0.9% barrel distortion (below average) and 0.4% pincushion distortion at telephoto (below average for a 4x lens).

Barrel Distortion, 0.9% @ wide angle Pincushion Distortion, 0.4% @ telephoto

Vignetting / Light fall off

Our vignetting / light fall off test is very simple, a shot of a blank wall from two meters away, vignetting will always be most visible at wide angle and maximum aperture and will start to disappear at smaller apertures and/or further zoom. The G5 exhibits a little vignetting and light fall-off, most visible in the bottom left and right corners of the frame. It's unlikely this amount of light fall-off would be visible in everyday shots.

Slight corner vignetting visible at wide angle and maximum aperture (F2.0) No noticeable vignetting at telephoto (F3.0)

Purple Fringing (Chromatic Aberrations)

We expected pretty much the same performance as the G3 (some purple fringing but not enough to be of real concern). However the G5 does appear to exhibit stronger fringing with a larger border and even at smaller apertures (where fringing typically disappears). Could this be because of the tighter pitch of the microlenses on the CCD? (pure speculation). As you can see from the samples below while fringing is reduced at higher apertures it is still visible. For me this level of fringing isn't really acceptable in a modern digital camera.

Fringing visible around reflective highlights, F4.0 Fringing visible in areas of contrast, F4.0
Our standard chromatic aberration test shot  

Foil "torture test"

F2.5 - Fringing clearly visible F4.5 - Fringing still visible although reduced

Overall Image Quality / Specific Issues

I'm sure the production of the G5 was a 'no brainer' for Canon, simply slot in the new five megapixel 1/1.8" CCD in the place of the G3's four megapixel 1/1.8" CCD and just to spice things up a little turn the body black. Well, I'm sure it wasn't quite as simple as that but this is essentially what we have. From an image quality point of view the G5 has all the positive aspects which the G3 brought, good dynamic range, optimum resolution, natural tone balance, strong yet accurate color and clean ISO 50 images. The G5 continues one tradition of Canon's 'G' range, and that is producing as much resolution as we could expect from the sensor used, in this case the G5 delivering as much detail as we have seen from this 1/1.8" CCD.

There were obvious compromises in making that jump from four to five megapixels, noise has increased from ISO 100 upwards, indeed the G5 is looking noisier than a lot of the competition. Purple fringing is also worse, both at maximum aperture and stopped down, which wasn't something we were expecting.

Shallow angle jaggies

Something we picked up in our G3 review is still here with the G5. At very shallow angles (approximately ten degrees or less) in a strong contrast the camera's algorithms (either demosaic or sharpening) don't alias the diagonal line particularly well and it can end up looking slightly jagged.

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Total comments: 5

If I buy used one on Ebay, how much for good price??. Thanks so much!!


Used this like 10 years ago. It looks kinda cool, the size is nice, the lens is nice. It's horribly noisy (optically) at "higher" iso. Back then it was good/ok low-light performance for a digital, but we've come a long way!

1 upvote

So, given this is a 12 going on 13 year old camera, and you could pick one up for 12 bux with extra working batteries, would it still be considered an interesting IF not excellent camera?. I have compact flash cards to go into just laying around from when I had a Canon XT and once had the G2 which took pretty good stills. (Has the feel of one of the classic Canon rangefinders). Anyway, even though 4x zoom isn't much, is it better than a cell phone camera?...Thanks

Comment edited 1 minute after posting

Just picked one up for £40 UK pounds, in great condition, it may be old and feels old. But its very good and clean as its not bloated with too many pixels. The lens is sharp. For what i could buy new for £40 its like 10x better.

1 upvote
jazz camcorder

i bought a bulk lot of cameras camcorders mp4 players gps systems ect about 2 years ago for 48nzd and this camera was in the lot and all it needed was a new battery and i must say it takes some really hq photos and it damn good in low light and seeing as it only 5mp that is good enough for me

Total comments: 5