Pt. 1 - Appearance and Zoom Range
Pt. 2 - JPEG Noise
Pt. 3 - ISO 80 JPEG Crops at 35mm & Full Aperture
Pt. 4 - Flare Performance
Pt. 5 - Noise Performance Revisited
Pt. 6 - G7 Default JPEG vs GX100 Silkypix Conversions
Pt. 7 - Key Timings
Pt. 8 - Build Quality, Quality Control, and Battery Life
Pt. 9 - Conclusion

The question I get most often is "Which one do you recommend most?" None of these cameras are right for everyone, but I will try to provide a summary analysis here along with my personal decisions and their basis.

Form factor: Each camera has its merits here. The D-LUX is the most portable, followed closely by the Ricoh. I appreciate the fact that the G7 lens retracts, making a clunky separate lens cover unnecessary. The Ricoh is the only one to provide a decent grip, though in truth I find all quite comfortable to control. The G7 feels the most solid, but it's also the heaviest by far.

Controls: I prefer the manual dials of the G7 and GX100 to the joystick approach of the D-LUX. The G7 controls and menus have a nice familiarity since I have owned a number of Canon DSLRs and compact digital cameras which share control elements. The ISO dial on the G7 is a real blessing, something all my cameras should have but none beside the G7 do. All three cameras position controls well from a usability standpoint. However, I have come to love the controls and customization of the GX100 most of all. I love being able to register my most commonly used indoor and outdoor settings to the two "My Setting" locations main dial. The dual dials are simple and effective, and the menu can also be simply customized for easier access to important settings.

Zoom range: No brainer here. As described here, the focal length ranges are dramatically different and in my opinion this should serve as the main differntiating factor in choosing amongst these cameras.

Image quality:

The G7 and GX100 seem to resolve a comparable amount of detail when "pixel peeping." The D-LUX too rises to the occasion, particularly when shooting RAW. The GX100 marginally outresolves the G7 when the former is shot in RAW mode and care take in postprocessing. That said, the G7 does an admirable job in removing noise without destroying image detail. However, for those of us who really understand and enjoy postprocessing, RAW provides another level of flexibility. We get to choose our own detail versus noise removal trade-offs throughout each region of each image.

The noise quality and image detail of the GX100 is subjectively the most appealing of the three cameras to me when using the default in-camera black and white JPEG mode. This is true at all ISOs, but particularly at ISO 200 and above. I won't go so far as to call the Ricoh noise "grain" as some have done. It still looks digital to me at the pixel level. However, both on the LCD and in print, the GX100 B&W noise appeals to me more than the G7 noise does. The D-LUX noise, in RAW conversions to B&W, also has a pleasing quality to my eye.

The G7 lens shows great resistance to veiling flare compared with the others. It is difficult to emphasize just how important this quality is - a major plus for the Canon.

The GX100 lens shows very little purple fringing, even wide open at the shortest focal lengths. What little purple fringing exists is effectively treated by the in-camera JPEG processing. Purple fringing is not a major problem for any of the three, but the GX100 is the best of the lot.

Automatic white balance was acceptable on all three. The G7 and D-LUX seemed a bit more consistent outdoors with the GX100 perhaps more consistent indoors.

Color accuracy was not specifically tested, but my impression was that all are quite good in this respect.

Dynamic range, as expected, is not very good with any of these small-pixelled cameras. I'd say, without rigorous testing, that they are all similarly weak in this aspect. The D-LUX and GX100 RAW files can afford a bit of leeway in salvaging lost shadow detail and clipped highlights. G7 users lack this flexibility.

Shot to shot time in RAW mode was slightly longer with the GX100 than with the D-LUX 2.

Movie mode: In my tests, the G7 produces the highest quality movies of the three.

Metering is comparably effective with all three cameras. I am the weakest link in each case when it comes to metering.

Subjective Assessments:

LCD: The G7 LCD is the most legible of the three, particularly in bright light. All three have bright LCDs that are "good enough" for a variety of lighting situations.

Viewfinder: The G7 is the only one with a built-in viewfinder. However, there is considerable framing inaccuracy with this viewfinder. The Ricoh EVF is a clumsy attachment to carry, and doesn't give the best image in the world, but at least it frames accurately; it is therefore much more useful to me than is the G7 optical viewfinder. The D-LUX lacks an optical viewfinder.

Battery: My subjective impression is that the G7 has a better battery life than the other two cameras, though none of the three have very good battery life.

Focusing accuracy and speed were not objectively measured. In use, they seem very good with all three, and I am unable to say that one is better than another.

Image stabilization: Image stabilization was effective on all three cameras. I have insufficient data to judge between them in this category.

The menu system and operation speeds are excellent on all.

Not tested:

The flash on each has been insufficiently tested for me to make a judgment.

I have not used any of the bundled software. RAW users should check the compatibility of their RAW processing software of choice prior to assuming a given camera will be supported.

Macro modes have not yet been tested.

Continuous shooting modes were not tested.

Other Special Features

- The G7 and GX100 have a hot shoe.

- G7 has face detection.

- Native 16:9 aspect ratio of the D-LUX 2.

- Step zoom of the GX100 is a great feature for prime lovers.

- Snap zoom of the GX100 is a bit of a gimmmick, not different than setting manual focus to 2.5m on the other two cameras. However, having this "feature" as a distinct setting allows one to quicly select it, which is quite useful.

- The GX100 allows one to shoot in 1:1 format.

- The D-LUX 2 has a TIFF mode in addition to RAW and JPEG.

- The G7 seems to work with regular 4GB SD cards (I tested it with the Transcend 150x 4GB SD card) whereas the GX100 requires SDHC cards when going higher than 2GB. I'm not sure about the Leica.

- The GX100 will take AAA batteries in a pinch.

- Various conversion lenses and accessories are beyond the scope of my comparison.

So which one should you buy?

All three cameras are excellent choices if you want a compact camera with full photographic control.

Here are a few tips:
- If you eschew RAW, like to shoot JPEGs only, and enjoy shooting at high ISO and making large prints, avoid the D-LUX cameras.
- If you mainly shoot B&W, I think the GX100 is the most rewarding of the three. It has a great in-camera B&W mode, and RAW files are ultimately the best source for high quality B&W conversions from color.
- If you want a camera that will impress the general public, the G7 and D-LUX get the most comments. On the other hand, if you want not to be noticed, a black LX2/3 or GX100 are probably the best fit.
- If you want a camera that will impress other photographers, the GX100 gets the most questions =).

In the end, the most important question to answer before buying one of these cameras is what focal length range suits your style of photography. If you like to shoot telephoto, the G7 is the clear answer. On the other end of the spectrum, the GX100 is the only one of the three to extend to the ultra-wide focal length range. The D-LUX 2 has the most moderate range extending from wide to moderate telephoto.

The G7 is a fantastic photographic tool. I have used it to make large prints which are similar in quality, to my eye, to those taken with my 5D and L lenses. For the JPEG shooter who doesn't frequently go wide, I don't think there is a better compact camera available. It is a highly controversial camera, but the great majority of criticisms seem to come from those who haven't used one for any period of time. Professional reviews have all voiced similar complaints about the omission of RAW, slower lens than previous G-series cameras, and lack of a flip LCD, but their summary conclusions have been almost universally positive.

I was planning to keep all three cameras, but after carrying them all for the past couple of weeks, I have decided that that would be overkill. Since my style of photography is more and more tending towards wide angle and B&W, the GX100 suits me best. The D-LUX 2 makes a wonderful backup, and I really enjoy shooting in its native 16:9 aspect ratio as a change of pace. I will gift the G7 to my father, who recently gave me his D-LUX 2 and could use a compact camera to go with his Canon DSLR.

If this multipart comparison has helped you to decide to purchase one of these excellent cameras, you can help me by purchasing from Amazon after going there via the links below.



Visiting the Amazon page using these links doesn't change your price but makes it so that Amazon shares a bit of the profits with me. I can honestly recommend Amazon for photography gear. In addition to competitive prices, they have great customer service and one of the best return policies around (though if the item is being sold on Amazon by a third paty seller, then the return policy of that seller would apply)..