lexicon

yes, you are right, i did't notice it. So it is in fact a big giveaway that they claim to have tested the LX100 with the same lens.

no, you take zeiss f/2.8 glass and use a M43 adaptor.

Marc, no, they haven't claimed that. I just assumed that to do the comparison they had to choose an equivalent Zeiss f/2.8 to use on the GH4. Future proper (and 'real') comparisons between LX100 and GH4 will have to choose a comparable lens for the GH4. Zeiss f/2.8 m43 glass would be a possible start.

I came across this and posted it without thinking too much. It was on a youtube channel called '‪‪Camera Test & Review TV‬‬', which has has been around for 6 months or so and they seem to have access to many cameras; so far the 'comparison test' has been seen by 2,700 people, quite significant, and no comment that it is fake. Also, you could expect the looks of the cameras to be quite similar if you match the lenses as the video shows. But you are right, there is no information about the test, and I assume that the LX100 is not available for anybody to test it yet (you know this things better than me); ...gosh, there are some idiots out there that have a lot of free time.

Panasonic Lumix LX100 vs Panasonic Lumix GH4 http://youtu.be/mfyg0Kjk2DI

Mahout - Sony F55 CineAlta 4k Camera Demo (Stargate Studios)[url="https://vimeo.com/54499106"]https://vimeo.com/54499106[/url]

[quote name='lexicon' timestamp='1346247686' post='16811'] [i]"The camera has a ‘new wide dynamic range’ feature measured at 800%. I am not sure why they don’t measure it in stops overall, I have no clue what this means!"[/i] I interpret it as having [b]three more stops of dynamic range[/b] than what you get with a standard gammas (REC-709). Say that what you get with REC709 is 100% (e.g. 8 stops). Well, if you manage to capture [b]one more stop[/b] of light within the legal signal (0 to 100 IRE output, see figure) you have reached 200% (you should represent that percentage on the input-axis of the traditional input-output gamma curve graph). If you manage to fit [b]another extra stop[/b] of light within the legal signal you have reached 400% (you have doubled 200%). Finally, If you manage to fit [b]a third extra[/b] [b]stop[/b] of light within the legal signal you have reached 800% (you have doubled 400%). So, 800% means that with the C-Log mode you can fit three extra stops of light within the legal signal compared to standard gamma (REC-709). In other words, if the camera captures, say, [b]9 stops[/b] with REC-709, well, with C-Log you will be able to capture three extra stops, making a total of [b]12 stops[/b]. [img]http://www.eoshd.com/comments/uploads/inline/14106/503e18bf2d9e2_HypergammasandSLogcurves.jpg[/img] [source of the figure: Alister Chapman, xdcamuser.com] [/quote] So, basically "Wide DR Gamma" means just an intermediate gamma between REC709 and Canon Log. It's reported by Canon to measure 800%, which as I explained before, means that it adds [b]three more stops[/b] of dynamic range compared to REC709. It is a less extreme gamma than Canon Log, making it somehow usable without -or with little- grading in post, not a bad idea indeed. Canon website: [b]Canon Log Gamma and Wide DR Gamma[/b] Canon Log Gamma preserves shadow and highlight detail for maximum editing and grading in post-production without degrading image quality; contrast and sharpness are subdued with characteristics similar to negative film. Canon Log Gamma emphasizes rich gradients from mid-range to highlights and realizes 12-stops of Dynamic Range (DR). At ISO850, Canon Log Gamma enables 5.3 stops of latitude above optimal exposure (and 6.7 stops below), broadening the available dynamic range in color grading. [color=#000000][size=2][img]http://www.usa.canon.com/CUSA/assets/app/images/cameras/cinema_eos/C100/features/c100_feature_04a.jpg[/img][/size][/color] [color=#000000][size=2][size=4]Wide DR Gamma is based on Rec. 709 and is optimized for monitor output or situations requiring less color grading in post-production. Wide DR Gamma exhibits high dynamic range, suppressing brightness while maintaining seamless gradations. A wide dynamic range of 800% preserves latitude for post-production work, but Wide DR Gamma is designed for perfect color "out-of-the-box."[/size][/size][/color] [color=#000000][size=4]source: [/size][url="http://www.usa.canon.com/cusa/professional/products/professional_cameras/cinema_eos_cameras/eos_c100#Features"]http://www.usa.canon...s_c100#Features[/url][/color]

[i]"The camera has a ‘new wide dynamic range’ feature measured at 800%. I am not sure why they don’t measure it in stops overall, I have no clue what this means!"[/i] I interpret it as having [b]three more stops of dynamic range[/b] than what you get with a standard gammas (REC-709). Say that what you get with REC709 is 100% (e.g. 8 stops). Well, if you manage to capture [b]one more stop[/b] of light within the legal signal (0 to 100 IRE output, see figure) you have reached 200% (you should represent that percentage on the input-axis of the traditional input-output gamma curve graph). If you manage to fit [b]another extra stop[/b] of light within the legal signal you have reached 400% (you have doubled 200%). Finally, If you manage to fit [b]a third extra[/b] [b]stop[/b] of light within the legal signal you have reached 800% (you have doubled 400%). So, 800% means that with the C-Log mode you can fit three extra stops of light within the legal signal compared to standard gamma (REC-709). In other words, if the camera captures, say, [b]8 stops[/b] with REC-709, well, with C-Log you will be able to capture three extra stops, making a total of [b]11 stops[/b]. [img]http://www.eoshd.com/comments/uploads/inline/14106/503e18bf2d9e2_HypergammasandSLogcurves.jpg[/img] [source of the figure: Alister Chapman, xdcamuser.com]