Panasonic LX5 vs LX3 spec-sheet comparison
Most of what is known about the Panasonic LX5 so far is what is published at the Panasonic website, so we did an A/B test comparing that spec-sheet to the one of the LX3, also from the Panasonic website. Please note that this may contain typos or errors!!!
LX5 vs LX3 spec-sheet differences (LX5 mentioned first)
+ Different lens, 24-90mm f2-3.3 vs 24-60mm f2-2.8
+ 10 elements, 9 groups, 3 aspherical lenses on 5 aspherical surfaces vs 8-6-4-4
+ LX5 has slightly different focal range for video recording
+ PowerOIS vs MegaOIS
+ Manual Focus jog-dial vs joystick
+ LX5 adds ISO 12800 (as if, but I digress)
+ 2-axis +/- 9-step vs 10-step WB adjustment
LX5 has 1:1 aspect ratio (added to LX3 via firmware update)
+ 2.5fps (5 standard, 3 fine) vs 2.5fps (8/4)
+ CIPA 400 vs 380
+ LX5 adds 1/4000 shutter speed
+ LX5 adds optional EVF
+ LX5 adds SDXC support
+ ID-Security 3.6V/1250mah battery vs 3.7V/1150mah (no ID-Security crap)
+ LX5 gets new software versions, ArcSoft dropped?
+ LX5 HDMI-out, VieraLink
+ three composition line guides vs two
+ built-in memory 40MB vs 50MB
+ different Extra Optical Zoom numbers
+ LX5 adds unicorn tears
+ and more...
Please note this is not a comprehensive listing of all their differences. The above is based on comparing the two spec sheets at the Panasonic support website. It is possible that there may inaccuracies or errors!
UPDATE July 22
The global Panasonic.net website has a detailed and color-coded description of the new Panasonic LX5, where they point out additions and differences in the LX5 with red colored fonts.