Help me understand coded vs non coded

[nikon_junkie]

i've got a 35mm Summilux (v2) and will likely add some othe pre-asph glass to my collection.

I want to begin moonlighting doing weddings and would just assume shoot with multiple m7 bodies. But I'm attracted to the ME for a digital option.

How does a camera like the ME handle non coded glass? Will I still get the framelines? Will I lose the exif data with non coded glass?

 

[Godfrey]

The lens code tells the ME body what lens is fitted, which allows the body to populate the EXIF data with lens name, focal length, and an estimate of the aperture used. The body will also perform some corrections on the capture data (both JPEG and raw) to improve the match of lens to sensor. This latter is most useful with short focal lengths, where you might try a couple of lens codes for a lens which isn't included in the listing and pick the one that performs best.

You can tell the camera to set the code based on the lens for coded lenses, set the code manually, or to not set any codes. Without the code, the EXIF data will not be populated and you'll make any corrections that the coding might have made with image processing software after the fact.

The frameline selection mechanism is all mechanical, just like on all M cameras, and has nothing to do with the lens codes.

Godfrey

 

[Godfrey]

The estimated aperture is also written in the EXIF fields for uncoded lenses. (for the M8, is it different for M9?)

Likely the same behavior on the M9. I always set a lens code so it is likely an unwarranted supposition on my that the estimated aperture setting requires it. 🙂

G

 

[douglasf13]

Now that LR4 (and C1) has the option to correct color shift easily in the raw converter, I've stopped using coding altogether. I don't like the M9's auto-vignetting correction, because it makes for issues at the edge of the frame in lowlight, since the edges of the frame are boosted a stop or two. I just leave the vignetting, and correct the color shift in LR (and sometimes correct the vignetting in LR, if need be.) Granted, I don't use any super wide lenses, but I'd imagine that wouldn't change my decision.