Instruction manual

18
In infrared photography, some adjustment is required in the focus in
order to retain sharpness on the film, because the invisible infrared
rays are longer in wave length than the visible rays used for focusing.
For infrared photography: -
1. Use an R filter or equivalent with an infrared (black-and-white) film.
2. The red-colored line, next to the orange-colored distance index, is
the infrared index.
3. After focusing in the normal manner, re-set the distance indicated
by the orange-colored index to the infrared index, by shifting the dis-
tance ring.
21. Infrared Photography
For example, if the distance indicated by the orange-colored index is
3m, when the lens is focused on the subject, re-set 3m to the red-col-
ored infrared index, by shifting the distance ring, which will focus the
lens properly at 3 meters for the infrared film loaded in the camera.
* Follow instructions enclosed with the film and filter and, to be on
the safe side, make several bracketing shots. In general, it seems safer
to give more exposure than less, in this case.
A. Always use flash cords with a standard PC type plug, which should
be connected to the flash synch socket on the front of the main body.
* When detaching the flash cord, grip the plug firmly and pull it out
straight, instead of using a twisting action.
B. The Zenzanon-PG lenses have a between-lens leaf shutter with X-
setting for flash synchronization. This means that electronic flash
units can be used and will synchronize at all shutter speed settings,
up to 1/500 second. Flash fill-in for daylight shots are also made very
easy.
22. Flash Photography