[pure-silver] Re: New b&w film - Rollei R3
- From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Tue, 5 Oct 2004 16:44:56 -0700
----- Original Message -----
From: "Bill Stephenson" <photographica@xxxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Tuesday, October 05, 2004 4:15 PM
Subject: [pure-silver] Re: New b&w film - Rollei R3
> Edward, please forgive my ignorance, but...what is
> "traffic film"? I
> admit that the "cheap" part sounds good to me, but I
> probably should
> know what it is before I buy some. (If it turns out to be
> what I'm
> guessing, I'm going to be embarrassed. It's been so long
> since the
> answer to any of my questions has been obvious and
> straightforward that
> I no longer accept the possibility of a simple answer!
> <g>)
> -Bill
>
>
> On Tuesday, October 5, 2004, at 12:11 PM, Edward C.
> Zimmermann wrote:
>
>> If
>> one wants traffic film.. great for the extended red
>> sensitivity and the
>> very wide exposure range possible.. its cheap
>
Traffic film is used in those cameras which record
people going through stop lights, etc. It is IR sensitive so
that invisible IR flash can be used. This is partly so that
violators are not tipped off but mostly to avoid distracting
other drivers with powerful flashguns going off.
---
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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