With Panasonic's recent tease at Photokina of a 42.5mm/f1.2 lens (for release in 2014) I'm wondering why they chose that particular focal length. [note: I asked this same question in another more general thread about this release, but didn't get any feedback, which is why I'm reposting it here.] In the presentation they refer to the lens as a 42.5mm but in the image of the lens itself, it's marked as a 43mm. http://www.blogcdn.com/www.engadget.com/media/2012/09/panadsc09214.jpg" title="Panasonic 42.5mm/f1.2" /> I understand that 42.5 x 2 = 85mm, which is a "standard" 135 film (i.e. "full frame") focal length, but I would think that the :43: manufacturers would want to [I]avoid or minimize[/I] any "equivalency" discussion and the baggage that comes along with that. It seems to me that introducing this lens as a 42.5mm just[I] invites[/I] that type of thinking about Four Thirds. Wouldn't making this a [B]40mm[/B] or [B]45mm[/B] lens make more sense? The FOV difference between 40 or 45mm and a 42.5mm (or even 43mm) lens wouldn't be [I]that[/I] significant. I guess one could make a similar argument about the 12-35mm zoom (which mirrors the range of a 24-70mm lens on a "full frame", which is a common lens). Is there something "magical" about the 85mm focal length that I am missing? Or is this a sign of an inferiority complex among :43: designers/marketers?