Re: Fwd: IR in darkness

["Tim Rudman" <tim.rudman@xxxxxxxxxx>]

I agree with George. It's not the ideal way to start with I R but if you do,
be prepared to experiment widely and test methodically. I've experimented a
lot with filtered flash and open flash with filtered lens. My results varied
a lot depending on location, subject and as you would expect, distance. A
possible advantage of using an opaque IR filter on the flash, depending on
what and where you are shooting, is that the flash is not visible (apart
from a dull red blip if one looks straight at it). This can be useful
shooting on the subway or in the street at night etc but testing is
essential for both exposure and contrast.
Tim

-----Original Message-----
From: George L Smyth <GLSmyth@xxxxxxx>
To: infrared@xxxxx <infrared@xxxxx>
Date: 30 January 1999 14:59
Subject: Re: Fwd: IR in darkness


>Sorry, but I don't have the answer they want, which uses the dreaded "T"
word -
>test.  One can bracket a few shots, remove them from the camera and develop
>them.  In that way, film can be saved.  Using flash at night with infrared
film
>is somewhat a jump from never having tried the film at all, so perhaps this
>isn't really the best place to start.
>
>george
>
>Spearmint wrote:
>>
>> HELP!!!
>>
>> Sorry to do this again, guess I should drop the email link from my page,
>> can anyone help with the following questions I've been sent??
>>
>> Thanks in advance :)
>> TTFN
>> Gavin
>>
>> ---------------- Begin Forwarded Message ----------------
>> Date:        29/1/99 6:56 pm
>> Received:    29/1/99 10:51 pm
>> To:          infrared@xxxxxxxxxxxx
>>
>> Hello,
>> I have a few questions about infrared photography, which I am going to
try
>> my hand at for the first time tonight. I have asked a lot of people a lot
>> of the basic questions, which leaves the more difficult ones for you.
>> Maybe
>> you can help. First of all, I am going to be shooting exclusively in the
>> dark, outside at night. I will be using a flash, and will be shooting at
>> 1/30 and/or 1/60, and will be bracketing between f 1.7 and f 10. Does
this
>> sound right so far? I know that the film really can't be rated with a
>> standard ASA number, and also the aperture has very little to do with the
>> image, but my main concern right now is not to ruin the whole roll. I'd
>> like to start right and get at least a few good pictures out of  this. My
>> interest is in capturing infrared energy that is not visible to the human
>> eye for scientific purposes, not artistic. Do you have any other
>> suggestions? I have a 25 visible red filter that I am going to be using
>> for
>> the time being, but I understand that there are three other filters that
I
>> might be able to use, the 87, 87c, and the 89. Can you tell me anything
>> about the differences between these, and how the images that they will
>> produce will differ from the 25 - again, bearing in mind that my goal is
>> not artistic but scientific. Any help you can provide would be greatly
>> appreciated.
>>
>> ----------------- End Forwarded Message -----------------
>>
>> ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
>>
>> State the problem in words as clearly as possible.
>>
>> ~~ ~~ ~~ ~~ ~~ ~~ ~~ ~~ ~~ ~~ ~~ ~~ ~~ ~~ ~~ ~~
>>
>> Coolmint Designs.   http://www.coolmint.com
>>
>> ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
>>
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>--
>
>Handmade Photographic Images
>http://www2.ari.net/glsmyth/
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