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Lens Detection Setting in M8 Menu


photolandscape

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Presently on Easter Island, where my M8 and lenses are being tested and are holding their own. I noticed something new last night that may have been introduced in the latest firmware version--under lens detection--the choices are ON, ON w/IR Filter, and OFF.

 

I am using IR filters at all times. Do I need to set the menu to ON w/IR filter to activate something in the software to help with IR filtration, or is the ON setting enough. I hadn´t noticed this w/IR Filter setting before, so am wondering. Thanks.

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Guest tummydoc

If your wide-angle (<=35mm) lenses are coded and your filters are Leica-brand, the ON+UV/IR will correct the cyan corner vignetting, to a greater or lesser degree depending upon the light and aperture. With lenses >35mm there is no correction needed, and with un-coded lenses there is none applied.

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If your wide-angle (<=35mm) lenses are coded and your filters are Leica-brand, the ON+UV/IR will correct the cyan corner vignetting, to a greater or lesser degree depending upon the light and aperture. With lenses >35mm there is no correction needed, and with un-coded lenses there is none applied.

 

Does this apply to shooting in RAW, or is the correction only applied to in-camera jpeg? Roger

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The correction is applied in RAW. I learned this the hard way. After using a non-coded lens with Lens Detection in the "off" mode, I shot a job almost exclusively using the 24mm Elmarit and forgot to turn the Lens Detection back to "On + UV/IR." I ended up with cyan corners and it was a complete pain in the ass to remove. I never shoot anything but RAW.

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Brent, you are probably aware of CornerFix, but in case not, have a look at "http://sourceforge.net/projects/cornerfix/". It should remove the pain-in-the-ass factor.

 

Cheers

Ian

 

Thanks much, Ian. I was aware of it but have never used it. I'll do the download tonight.

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Brent, you are probably aware of CornerFix, but in case not, have a look at "http://sourceforge.net/projects/cornerfix/". It should remove the pain-in-the-ass factor.

 

Cheers

Ian

It looks like this is for Windows operating systems only, I looked but did not see a Mac version. Are you aware of one?

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Guest tummydoc

CornerFix is a stand-alone not a plug-in so if your Mac is like mine you can run it in Windows without much more hassle than those with PCs.

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