[Leica] Big thick ND filters......

[red735i at verizon.net (Frank Filippone)]

Found a reference ... where the guy said that the Heliopan had less color
shift than "others".  Will try to find the filter...  B+H has them.

Thanks Bob.....

Frank Filippone
Red735i at verizon.net


I remember a thread in getdpi.com about this. Look under Medium Format
(Dante's Inferno) and filter for a thread about ND filters. I person on
there did a lot of testing. Membership is free and worthwhile.
Bob

On Thu, Dec 6, 2012 at 10:55 PM, Frank Filippone <red735i at 
verizon.net>wrote:

> I am interested in slowing down things, a lot.  I had picked out a 10 
> stop ND filter, then did a bit more research, where I found this 
> tidbit...( though it is for a 6 stop reduction)
>
>
>
> "This B+W Neutral Density Filter reduces the light by six f-stops. 
> With this filter and without changing the f-stop, a shutter speed of 
> 1/60 s is changed to a full second, thus requiring the use of a 
> tripod. Flowing water is rendered as flowing in the photo, and people 
> moving in streets are dissolved in unsharpness or become invisible. 
> Because of its higher transmission in the red beyond 660 nm, this 
> filter brings a slightly warm tone to color photographs. If this 
> effect is undesirable, a B+W UV-/IR-Blocking Filter
> 486
> in front of the neutral density filter (not behind it) remedies that 
> situation. The filter factor is 64x."
>
>
>
>
>
> Has anyone ever heard of a ND filter of this strength being a bit warm 
> toned?
>
>
>
> Frank Filippone
>
> Red735i at verizon.net
>