On 21 Jun 2002 at 8:32, gfen wrote:

> Not writing it off, just seeking something different for a bit.

HIE has the longest IR sensitivity of all the commercial IR films on the market 
so any others will provide less pronounced IR effects. The halation effect of 
HIE can be reduced as Bill W indicated by placing an IR absorbent material over 
the shiny pressure plate if it really disturbs you.

> I've noticed that real IR filters are disguistingly expensive, not to
> mention the bit about not being able to see through the lens is a bit of a
> bummer, too. I've considered trying to find a source of teh material and
> taping it over teh film guides like others have done.

The guys on the IR List at 
http://www.pauck.de/archive/mailinglist/infrared/infrared.html
Will certainly be able to help you obtain filter materials for placing at the 
film plane. THe only advantage to this is that you can't TTL meter and as you 
know there is often a very wide variation between visible light and IR ratios. 
Obviously this is only of consequence if your TTL meter has good and 
predictable IR response.

I prefer to use my RF cameras for IR work as the finder remains 100% 
functional.

> Is there any apprechiable (is that a word, what about if I spelled it
> correctly?) difference between a 25 and a 29 filter with HIE? With the
> other near-IR films?

Never had experience with the 29 filter, again you're best bet is to post that 
question to the IR list.

Cheers,

Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
UTC(GMT)  +10 Hours
[EMAIL PROTECTED]
http://members.ozemail.com.au/~distudio/publications.html
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