[Leica] IR/UV filter differences

[imagist3 at mac.com (Lottermoser George)]

Thanks Gene. Quite helpful. I'm thinking about a B&W

Regards,
George Lottermoser
george@imagist.com



On Sep 13, 2007, at 8:54 PM, grduprey@mchsi.com wrote:

> I have the Heliopan UV/IR filter on my 28/2.8 Elmarit Asph, my  
> onlly coded lens, and see no ill effects at all, no cyan creep at  
> the edges, that I can tell.  I use my 2 free Leica filters on my 50  
> 'cron and 35 'lux (pre-asph) neither have any coding and do not see  
> any ill effects here either, although at these focal lengths I  
> don't think it makes any difference.  My 90 Tele-Elmarit uses the  
> Heliopan filter, looks fine.  I think the problems are with the  
> super wides, and not the 28 and longer lenses.  I know Len has done  
> a more extensive testing, but my experience with my set of lenses,  
> is all positive with either the Leica or Heliopan filters.  Cost  
> wise, there is not a big enough difference to choose one over the  
> other as they are all pretty pricey, expect $80 - $120 depending on  
> size.