Re: SFX with IR filter

[p geller <filje@xxxxxxxxxxx>]

Peter Badcock wrote:
> 
> The 89B is equivalent to the Hoya R72, this being the lowest cut-off frequency
> filter useable with SFX.  Be prepared for LONG exposure times.  Although I
> haven't used this filter with SFX myself I've heard that even in bright daylight
> hand holding is just not an option.
> 
> regards
> Peter
> 
> ______________________________ Reply Separator 
> 
> I can't remember (and I'm in the midst of packing so don't have time to look)
> if the 89A or 89B is the same as an R72, but the R72 will work.  I shot a lot
> of it with this filter, also a number 29.  But the 87 is much too opaque for
> the upper sensitivity levels of SFX film.
> 
> Pete Schermerhorn, 

I've just completed some tests with an 88a.
It is pretty much the end of the film's sensitivity,
with and ei of about 6.

phil

*
****
*******
******************************************************
*  To remove yourself from this list, send:          *
*         UNSUBSCRIBE INFRARED                       *
*       to                                           *
*         MAJORDOMO@xxxxx                            *
*----------------------------------------------------*
*   For the IR-FAQ, IR-Gallery and heaps of links:   *
*  http://www.a1.nl/phomepag/markerink/mainpage.htm  *
******************************************************