The Ricoh GXR 24-72mm f/2.5-4.4 lens unit is the second of Ricoh's current GXR lenses. The What Digital Camera GXR 24-72mm review sees how it shapes up...
At present the GXR only has two available lens units, the 24-72mm being the cheaper option. Unlike the 50mm f/2.5 macro’s APS-C sized sensor, the 24-72mm has a smaller 1/1.7in CCD sensor, with the quoted zoom range being an equivalent expression in 35mm terms.
At the wide end a f/2.5 aperture is offered, though this closes down to f/4.4 when shooting at the longer 72mm end of the range. Those familiar with one of Ricoh’s other high-end compacts – the GX200 – may be having a bit of déjà vu here, as the GXR is essentially the same camera when the lens unit is attached, albeit considerably pricier.
With the GXR body relying on a zoom toggle to the rear of the camera, zooming with this lens can feel a little awkward at times as there is no zoom or focus ring on the lens itself, falling away from DSLR-like and toward much more standard compact with this particular lens’ aspirations. And with competitors’ compacts, such as the Canon G11, offering a more advanced build than this set up, the overall GXR concept has a lot to live up to.
Although not a ‘macro’ lens, the 24-72mm does have one of Ricoh’s great traits – at the wide end it’s possible to shoot super-close-up to subject, as close as around 1cm from the lens (more than the other 50mm ‘macro’ lens is capable of). ‘Vibration Correction’ image stabilistion also features to keep shots steady.
As per the GXR body, full manual control is provided, including ‘My’ modes for personal pre-sets. Similarly, ‘Snap’ focus mode is likely to come in handy – offering a prefixed focal length of between 1-5m or infinity when fully depressing the shutter. Up to 1/2000th of a second shutter speeds are also available, though capturing fast-moving action is tricky when coupled with the sluggish AF system.
Ricoh GXR 24-72mm review – Image Quality
With a 1/1.7in CCD sensor, the quality here is widely akin to a compact, but not especially mind-boggling. Based on the initial expense of purchase, expectation was high, but results failed to live up to those expectations. At this level it’s entirely reasonable that clear and detailed images should come as standard.
ISO sensitivity runs from 100-3200, though excessive noise-reduction softens images considerably. Images throughout the range don’t possess crisp sharpness. It appears to some extent that JPEGs are over-sharpened too as contrasting edges and grain appear amplified and chromatic aberration is visible towards the edges.
Exposure was accurate throughout, though the contrast-detect AF did sometimes venture worringly away from the subject.
Ricoh GXR camera concept further links:
Ricoh GXR 24-72mm lens unit review sample images
Ricog GXR camera product images
N/A (sealed unit)
No focus ring.Min focus distance: 30cm (normal); 1cm (macro)Max Aperture: 2.5-4.4Optical Construction: 11 elements in 7 groups
CCD-based multi and spot AF; MF; Snap; infinity (focus lock and AF-assist)
Manual (+4.0 to -4.0 EV in increments 1/3 EV or 1/2 EV), auto bracketing (-2 EV to +2 EV in increments 1/3 EV or 1/2 EV)
SD / SDHC
68.7 x 57.9 x 38.6mm
Yes, VGA only
Yes, Ricoh VC (Vibration Correction) sensor-shift method
Auto / Multi-P AUTO / Outdoors / Cloudy / Incandescent Lamp / Fluorescent Lamp / Manual Settings / Detail; white balance Bracketing
TTL-CCD metering in multi (256-segment), center-weighted, and spot modes with autoexposure lock
Program AE, aperture priority AE, manual exposure, shutter priority AE, move target function
180 – 1/2000 second
3x zoom; 24-72mm equivalent
3648 x 2048
10MP 1/1.7” CCD