User talk:Neffk
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[edit] Canon EF lens mount
Hello, I undid your edit in Canon EF lens mount, because you uploaded a pdf file, but it's not a valid image format here (check Wikipedia:IUP#Format), you should upload the original image as an SVG (or, if you can't, as a png). I'm sure you'll agree that pdf is not a web friendly format for images. Thanks for contributing, I hope you continue doing so!
