Analysis of information sources in references of the Wikipedia article "Leica Digilux 1" in English language version.
Nothing new here, the same 3x optical zoom F2.0 - F2.5 Canon Lens we saw on the QV-3000, QV-3500 and a multitude of other digital cameras from other manufacturers. It's of course also the same lens used on Canon's own PowerShot G1 and G2.
After receiving the 3000Z I put it on my desk next to a Sony DSC-S70.. That's when it struck me, it's the same lens. No, really, bear with me. They're both 7 - 21 mm (F2.0 - F2.5) lenses, size, extension speed/mechanism and internals appear identical.. Which is kind of confusing because Sony put a Carl Zeiss badge on theirs, yet Epson simply say "Epson Digital Camera Lens". Interesting, yes?
For models DMC-LC40 and DMC-L5, Panasonic chose a complementary color filter to harmonize with the LEICA DC VARIO-SUMMICRON lens's F2.0 brightness and the rich gradation produced by these models' 4.0 Mega-pixel CCDs.
The CD300's lens is the same found on the DSC-S70, DSC-S75 and several other 3 megapixel digital cameras. It's a 3x optical zoom (34 - 102 mm equiv.) F2.0 - F2.5 lens, which means it's relatively bright and so should still perform well in low light.
