Wrong coding!

[tony740607]

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I have done this mistake several times now and I am sure you have as well (except the perfect people out there). Therefore I would like to know how you are using the feature of lens profiles and what you do when you do wrong.

First, my gear:

Leica M9, Summicron 50mm f/2, Elmarit 21mm F2.8, Lightroom 4.

Very often when I make a change between my lenses, especially from my Summicron to Elmarit I forget to change my "Lens detection". When I do this mistake my Elmarit gets identified as a 90mm lens in Lightroom.

Can I change this back to the right lens?

Does it matter except for the vignetting and flash? (Vignetting I am anyway normally setting myself in LR or PS).

What is normally your setting when you have a lot of non-6-bit coded lenses and you change between them. I assume you often forget to adjust this.

Now I have bought another lens (90mm Elmarit non-6-coded) and will for sure make this mistake even more.

[Tonki-M]

like you, i've been down this road the vignette is nothing to worry about as it is easily fixed in post. what i would be worry about is odd color around the edges of the frame especially on wide angle lens. For 50 and 90, i never felt that coding make too much of an impact as these longer lens are very well behaved in the first place.

[250swb]

So you need the EXIF to help you see the difference between a 21mm and a 90mm lens in an image? Whatever did people do before EXIF files?

 

You could try changing the lens flanges for a codeable flange from one of the excellent people on EBay. Check that the hole patterns are the same, and keep in mind that the frame selector has to match with the code, so a 21mm lens has to bring up the 28mm frame lines, just as a 50 mm has to bring up the 50mm frame lines for the coding to work.

 

Steve