Nikon 9350 Manuale Utente Scaricare il pdf (Pagina 46)

3.1.2.2 Installing the CIU

1. There is an alignment pin on the inside of the back end

of the 200mm lens. Align groove in the side of the CIU

with the pin, and slide the CIU into the 200mm Lens.

2. There is a silver alignment pin on the inside of the back

body adapter. Align this pin with the hole in the CIU

and secure the BBA to the 200mm Lens.

Silver Alignment Pin

Hole in

CIU

Groove in CIU Alignment Pin

3.1.3 Notes on Optimal Use

3.1.3.1 Nikon

The AstroScope 200mm Catadioptric Lens has a fixed aperture of

F1.3. Since there is no electronic communication between the

camera and lens, the camera’s automatic settings cannot be used.

However, the CIU includes an internal automatic gain control

feature so that a constant light output is maintained from the

intensifier for most light levels. Consequently, we recommend

adjusting the Nikon camera settings as follows:

1. Set the ISO to 1000 or higher. When using photographic

film, use high speed film only, ISO1000 minimum

2. Set the camera to “Manual Exposure” mode.

3. Set the shutter to 1/30 second as a minimum speed.

3-8

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Nikon 9350 Manuale Utente Pagina 46