Casio EX-G1 Review

February 17, 2010 | Gavin Stoker | |

Image Quality

All of the sample images in this Review were taken using the 12 megapixel Fine JPEG setting, which gives an average image size of around 6Mb.

The Casio EX-G1 isn't a camera for those who care about excellent image quality first and foremost, nor, given the mediating factor of its rough and tough shell that commands a premium in itself, is it priced as such. However, even on a bright day, colours appear slightly washed out and images have a definite digital look and feel to them. Though on-board prompts may helpfully inform the user that when selecting maximum 12 megapixel resolution they'll be able to make poster sized prints, there are far more suitable devices with which to do so.

Predictably in lower light it's hard to hold the svelte camera steady enough to get a pin sharp image, and so it proves when shooting at maximum telephoto setting in daylight. Because of the G1's odd, slanted body design, when shooting handheld it's additionally easy to forget to keep horizons straight and level - as the natural inclination is to hold it in a slightly different way to the conventional oblong shaped alternative.

When shooting at maximum wideangle there's some quite severe and very obvious loss of focus towards the edges of the frame while under bright conditions, pixel fringing is problematic when shooting landscapes, as is lens flare. Faced with such challenges images more closely resemble video grabs on occasion than photo quality stills. This is very much a 'snapper' for those who are themselves happy snappers, it delivering slightly fuzzy snaps with a casual grasp of exposure and white balance.

In terms of low light performance it won't be a surprise to hear this Casio is no star, though with a lack of visible noise up to and including its ISO 800 setting it's no abject failure either. However at ISO 1600 detail is noticeably softening across the entirety of the image, and at ISO 3200 the image is beginning to take on a watercolour effect, detail smudged as noise processing kicks in.

Whilst the above all sounds quite negative, we're of course being picky and it is possible to achieve decent results with a bit of playing around. Basically take three photos of every subject to get one sharp and properly exposed.


There are 7 ISO settings available on the Casio EX-G1. Here are some 100% crops which show the noise levels for each ISO setting:

ISO 64 (100% Crop)

ISO 100 (100% Crop)

iso64.jpg iso100.jpg

ISO 200 (100% Crop)

ISO 400 (100% Crop)

iso200.jpg iso400.jpg

ISO 800 (100% Crop)

ISO 1600 (100% Crop)

iso800.jpg iso1600.jpg

ISO 3200 (100% Crop)



Here are two 100% crops which have been Saved as Web - Quality 50 in Photoshop. The right-hand image has had some sharpening applied in Photoshop. The out-of-the camera images are soft at the default sharpening setting and benefit from some further sharpening in a program like Adobe Photoshop. You can also change the in-camera sharpening level to suit your tastes.

Original (100% Crop)

Sharpened (100% Crop)

sharpen1.jpg sharpen1a.jpg
sharpen2.jpg sharpen2a.jpg

Focal Range

The Casio EX-G1's 3x zoom lens provides a limited focal length of 38-112mm in 35mm terms, as demonstrated below.



focal_range1.jpg focal_range2.jpg

Chromatic Aberrations

The Casio EX-G1 handled chromatic aberrations quite well during the review, with some purple fringing present around the edges of objects in high-contrast situations, as shown in the examples below.

Example 1 (100% Crop)

Example 2 (100% Crop)

chromatic1.jpg chromatic2.jpg


The Casio EX-G1 offers a Macro setting that allows you to focus on a subject that is 10cms away from the camera when the lens is set to wide-angle. The first image shows how close you can get to the subject (in this case a compact flash card). The second image is a 100% crop.

Macro Shot

100% Crop

macro1.jpg macro1a.jpg


The flash settings on the Casio EX-G1 are Auto, Flash On, Flash Off, Soft Flash, and Red Eye Reduction. These shots of a white coloured wall were taken at a distance of 1.5m.

Flash Off - Wide Angle (38mm)

Flash On - Wide Angle (38mm)

ISO 64 ISO 64

Flash Off - Telephoto (112mm)

Flash On - Telephoto (112mm)

ISO 64 ISO 64

And here are a couple of portrait shots. As you can see, neither setting caused any amount of red-eye.

Flash On

Flash On (100% Crop)
flash_on.jpg flash_on1.jpg

Red-eye Correction

Red-eye Correction (100% Crop)

flash_redeye.jpg flash_redeye1.jpg


The Casio EX-G1's maximum shutter speed is 4 seconds in the Night scene mode, which isn't good news if you're seriously interested in night photography. The shot below was taken using a shutter speed of 1/60th second at ISO 400. I've included a 100% crop of the image to show what the quality is like.

Night Shot

Night Shot (100% Crop)

night1.jpg night1a.jpg