GX100 vs. G7 vs. D-LUX 2 Shootout Pt. 3 - ISO 80 JPEG Crops at 35mm & Full Aperture

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

Here are some samples to post which will hopefully be of interest to some. These were shot with all cameras at 35mm, which is the widest the G7 can do and the widest the D-LUX 2 can go with a 4:3 aspect ratio. All of these were done with default settings (color, contrast, sharpening, noise reduction), center point focus, tripod, image stabilization set to "off." All cameras were set using aperture priority mode to their maximum aperture, which was f2.8 for the Canon and Leica, f2.9 for the Ricoh. The one significant disclaimer I have to make here is that shutter speeds were around 1/30s and there was some tree movement due to the wind. Please look at all crop regions, as the results definitely vary.

Here is the test scene:




As before, in the following crops, the D-LUX 2 is on the left, the GX100 is in the middle, and the G7 is on the right.
In each case, click on the image to see at full size.

Upper left corner crop:



Upper right corner crop:



Bottom left corner crop:



Bottom right corner crop:



Center crop:



Once again, I am not going to comment on the results here. I've drawn my preliminary conclusions and am interested in hearing those of others.

The full size images with EXIF information are here.

I have also uploaded the full-size photos for the same comparisons at f4, f5.6, and f8. Click here to see those. Please note that the shutter speeds were quite slow on these, so movement due to the wind was a factor in some areas. Please consider all regions in your assessments.

Posted by Amin

3 comments:

AmbroseLiao said... June 14, 2007 at 11:25 AM  

It's pretty clear that the GX100 has very good optics and has very low distortion. I'll stick with my G7. The quirky add-on viewfinder which eliminates the hot-shoe is a strange design decision. The limited reach lens is also a deal stopper, although 24mm standard is nice.

Amin said... June 14, 2007 at 6:39 PM  

I agree about the viewfinder. However, unlike the G7 viewfinder which I was never able to trust given parallax error, I do use the GX100 VF. The G7 is no doubt an excellent choice in all aspects if you can tolerate not having RAW and prefer a long telephoto to a wide angle. I prefer wide angle any day.

Anonymous said... December 17, 2007 at 9:39 PM  

Did you know that there is a "firmware" available to give the G7 RAW capability.

See http://chdk.wikia.com/

Slightly unusual, this firmware does not overwrite the camera's firmware. Instead it lives on the memory card. Somehow that gives me more comfort because I think I can always revert to the camera's default by reformatting the card.

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