B&W IR w/Flash

[Gary Beasley <beasleyglb@xxxxxxxxxxxxxx>]

>Date: Thu, 28 May 1998 09:03:16 -0700
>From: Paul Shustak <paulshu@xxxxxxxxxxxxx>
>Subject: B&W IR w/Flash
>
>Hi I'm new to the list (see bio below) and have a question about shooting IR
>with a flash. I have covered the flash with an 87c filter in hopes of taking
>discreet night-time photos. However, my first attempts at using this
>technique has produced negs that are consitently 3-4 stops underexposed when
>the subject is within 10 feet.. If the subject is any further away, negative
>density drops off to almost nothing
>
>Anyone out there have any advice? Here are the particulars:
>
>Camera: Nikon FE2
>Camera settings: f/16; Exposure Index - 200ASA; Shutter - A
>Flash: Sunpak 433AF (Dedicated)
>Flash settings: Manual; full power; 1000 ASA; 
>Filter: on lens - none; on flash - Kodak Wratten 87C
>Film - Kodak Highspeed IR
>
>Thanks,
>paul
>
Well the obvious solution according to the information you gave is to use
5.6 instead of 16 for your aperture. Obviously the flash sensor does not
respond to the infrared in exactly the same manner as visible light.
Bracket a half stop either side of this next time and zero in on the best
settings. Remember to take notes on what is what. After a roll or two you
shoud have it just right. Above all have fun with it!
Gary Beasley
*
****
*******
******************************************************
*  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  *
******************************************************

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

End of Infrared-Digest V0 #587
******************************