Re: Nighttime and astrophotography with IR

["Willem-Jan Markerink" <w.j.markerink@xxxxx>]

On  3 Sep 96 at 16:36, Joseph O'Neil wrote:

>   Colour films only increase in speed by 2-3 times, but hypered tech pan 
> often has an effectiv4e speed of 1000 ISO.

I wasn't sure what speeds other hypered films would result in, but
if 1000 ASA is fast, you might try reverse processing
HIE....makes 1600ASA, with no loss of IR sensitivity nor halo effects....;-)) 
Not sure if you can push it on top of that....perhaps the 
non-pictorial/artsy allows some more speed.

You can find some formula's on my homepage, but it seems as if 
regular reversal kits could do the job too (would love to hear first 
hand experiences!):

http://www.a1.nl/phomepag/markerink/mainpage.htm

--
Bye,

       _/      _/       _/_/_/_/_/       _/_/_/_/_/
     _/  _/  _/               _/       _/  _/  _/
     _/  _/ illem    _/     _/ an    _/  _/  _/ arkerink
                     _/_/_/  


The difference 
between men and boys
is the price of their toys

<w.j.markerink@xxxxx>
[note: 'a-one' & 'en-el'!]

------------------------------

Topic No. 10