ho_co Posted February 4, 2009 Share #1 Posted February 4, 2009 Advertisement (gone after registration) On the Panasonic DMC-LX3, you can set a menu parameter to tell the camera that you have attached the Panasonic conversion lens. That option is not available on the D-Lux 4. According to the LX3 instructions: [ATTACH]125633[/ATTACH] In trying the wide angle conversion lens with the D-Lux 4, it occurred to me that this menu choice only available on the Panasonic might set extra image corrections not available to us Leica users. If you have an LX3, please do the following and let us know the results: Put the camera on a tripod and point it at the kind of thing you would use as a lens test subject. Without using the conversion lens, make two exposures in JPG Fine (since the camera applies its full software corrections to its JPG output): --One exposure should be with the camera set to full wide angle (24 mm equiv) and leaving the conversion-lens-attached mode turned OFF; and --The other exposure should be just the same, but with the conversion-lens-attached mode turned ON. If the camera employs different lens correction software when it is set to use the conversion lens, then the picture made with that software turned on but no conversion lens attached will not be as well corrected as the other, normal image. The effects should be more noticeable near the corners and edges of the frame. (My guess is that the lens aberrations will be over-corrected, leading to additional chromatic aberration and possibly even pincushion distortion.) It's not clear from the Panasonic DMC-LX3 instruction manual whether the software is affected by setting this mode, and that's what I'm asking you to help determine. If so, then the LX3 would likely work better than the D-Lux 4 with the conversion lens. Thanks for your curiosity and help! PS--I suggest the above test for simplicity, because everybody can play. If you have the LX3 and the wide-angle conversion lens, you could do the same experiment but with the conversion lens in both exposures: In this case, there would still be a difference in lens correction, but the picture made with the camera's conversion-lens-attached mode turned ON would be the better of the two. Link to post Share on other sites More sharing options...
Advertisement Posted February 4, 2009 Posted February 4, 2009 Hi ho_co, Take a look here Question for LX3 owners. I'm sure you'll find what you were looking for!
ho_co Posted February 4, 2009 Author Share #2 Posted February 4, 2009 FWIW Not seeing a big influx of immediate responses, I also posted the question at Effects of menu setting for wide-angle conversion lens: Panasonic Talk Forum: Digital Photography Review. Link to post Share on other sites More sharing options...
bjmike Posted February 4, 2009 Share #3 Posted February 4, 2009 It is, after all, a Leica forum. Link to post Share on other sites More sharing options...
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