Ricoh GXR A12 28mm Review

December 17, 2010 | Mark Goldstein |

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 4Mb.

The Ricoh GXR A12 28mm produced images of excellent quality during the review period. The performance of the A12 camera unit with its large image sensor is great, with noise not really becoming objectionable until ISO 1600, and even 3200 looking good, easily putting the GXR on a par with entry-level DSLRs. The Ricoh GXR A12 28mm handled chromatic aberrations very well with limited purple fringing effects appearing only in high contrast situations.

The 12 megapixel images were just a little soft straight out of the camera at the default sharpen setting of Normal and either require some further sharpening in an application like Adobe Photoshop, or you should increase the built-in sharpening level. The night photograph was excellent, with the maximum shutter speed of 30 seconds allowing you to capture enough light for most situations. Macro performance is poor, only allowing you to focus as close as 20cms away from the subject. The GXR A12 28mm's small built-in pop-up flash worked well indoors at full power, with no red-eye and good overall exposure, and the ability to fine-tune the power output is very welcome.


There are 5 ISO settings available on the Ricoh GXR A12 28mm camera unit. Here are some 100% crops which show the noise levels for each ISO setting for both JPEG and RAW files.

A12 28mm Camera Unit



ISO 200 (100% Crop)

ISO 200 (100% Crop)


ISO 400 (100% Crop)

ISO 400 (100% Crop)


ISO 800 (100% Crop)

ISO 800 (100% Crop)


ISO 1600 (100% Crop)

ISO 1600 (100% Crop)


ISO 3200 (100% Crop)

ISO 3200 (100% Crop)

Focal Range

The Rioch A12 28mm camera unit has a wide-angle focal range that's equivalent to 28mm in 35mm terms.



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 a little soft at the default sharpening setting of Normal. You can change the in-camera sharpening level to one of the preset levels if you don't like the default look.

Original (100% Crop)

Sharpened (100% Crop)


File Quality

The Ricoh GXR A12 28mm has 2 different image quality settings available, with Fine being the highest quality option. Here are some 100% crops which show the quality of the various options, with the file size shown in brackets.

12M Fine (3.83Mb) (100% Crop) 12M Normal (2.21Mb) (100% Crop)
12M RAW (15.5Mb) (100% Crop)  

Chromatic Aberrations

The Ricoh GXR A12 28mm handled chromatic aberrations very well during the review, with limited purple fringing present around the edges of objects in certain high-contrast situations, as shown in the example below.

Example 1 (100% Crop)

Example 2 (100% Crop)


The Ricoh GXR A12 28mm offers a Macro setting that allows you to focus on a subject that is 20cms 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


The flash settings on the Ricoh GXR A12 28mm are Auto, Red-eye-Reduction, Flash On, Slow Synchro, Manual Flash, and Flash Off. These shots of a white coloured wall were taken at a distance of 1.5m with the 28mm camera unit.

Flash Off - Wide Angle (28mm)

Flash On - Wide Angle (28mm)

ISO 64 ISO 64

And here are some portrait shots. As you can see, neither the Flash On or the Red-eye-Reduction settings caused any red-eye.

Flash On

Flash On (100% Crop)

Red-eye Reduction

Red-eye Reduction (100% Crop)


The Ricoh GXR A12 28mm's maximum shutter speed is 30 seconds, which is excellent news if you're seriously interested in night photography. The shot below was taken using a shutter speed of 15 seconds at ISO 200. I've included a 100% crop of the image to show what the quality is like.

Night Shot

Night Shot (100% Crop)