Archived posting to the Leica Users Group, 2007/05/08
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hi Luggers, I have been spending a lot of time on the various combinations of coded wide angle lenses, uncoded lens, IR cut filters both from Heliopan and Leica (when you can find them) and here are my general findings. If you don't shoot a lot in tungsten light - i.e. outdoors - you can likely get by without filters or coding what ever the focal length. If you shoot indoors under tungsten light conditions, depending on how fussy you are, and depending on how skilled you are in photoshopping, from 35mm and wider you might want to consider both IR cut filters and coded lenses. For example I have had coded my 21 Elmarit, my 35 Summilux Asph and my Tri Elmar. In tungsten light there is a definite difference in the way the CCD reads the light and corrects in corners - with filters and coding on - which is MUCH easier to work with in Silky Pix and / or Photoshop than trying to correct both for colour temperature and corner cyan shift after the fact. This is the case at my skills level (I am going to take a two day photoshop course at the Y next month and then I may have a different opinion). In my fooling around I don't see much difference in the output of the camera and wide angle lenses whether you use a Leica IR cut filter or a Heliopan one. In other on line forums some have measured it but I see little difference in real life photos. My project at the moment is to fit a 39mm IR cut filter to my 15mm Heliar and to find an adapter that I can code as the 16mm length of the WATE. Does anybody have a Leica ltm>m adapter (any focal length is fine) that they can sell me? The CV ones won't work. If you do contact me off list please. Cheers Howard (Busy busy busy in Hong Kong) On 9 May 2007, at 9:22 AM, lug-request@leica-users.org wrote: > Message: 3 > Date: Wed, 09 May 2007 00:02:27 +0000 > From: grduprey@mchsi.com > Subject: Re: [Leica] Lenses without 6 bit code in M8 > To: Leica Users Group <lug@leica-users.org> > > none. if you have 21 through 28 mm lenses there may be some cyan > shift near edges with ir filters, but other than that no problems > at all. > > gene > > -------------- Original message from "Dott. Ing. Claudio > Rimediotti" <studio.rimediotti@iol.it>: -------------- > > >> I'd like to know what are the problem to use old Leica lens >> without 6 bit >> code in an M8. >> >> Thanks, regards from Italy! >> >> Claudio Rimediotti >> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >