Nikon 1799 instruction manual Program chart, Aperture F4

When a CPU Nikkor lens other than G-type is not set to its minimum aperture setting, ƒEE blinks in the top LCD panel and viewfinder and the shutter locks.

When a non-CPU lens is attached, the exposure mode automatically switches to Aperture-Priority Auto, ¡ blinks in the top LCD panel and £ appears in the viewfinder. When the maximum aperture is specified in “Non-CPU lens data” (x 144), aperture value is displayed in the top LCD panel, rear LCD panel (in detailed or large display) and viewfinder. In this case, aperture can be set to intermediate values with the aperture ring but the display only shows changes in one EV steps. When the maximum aperture is not specified, the aperture display shows the EV step difference from the maximum aperture (i.e., ∂2: two steps from the maximum aperture); set/confirm aperture with the lens aperture ring.

When the subject is too dark or bright, one of the following warning indications will appear in the top and rear LCD panels (detailed and large displays) or viewfinder:

•H1: Use ND filter.

•Lo: Use Speedlight.

Program chart

The program chart shows exposure control in Programmed Auto exposure mode.

——With ISO 100 film, a lens with a maximum aperture of f/1.4 and a minimum aperture of f/16 (e.g. AF 50mm f/1.4D):

]						EV range: EV 0-20
V	-4	-3	-2	-1	0	1	2	3	4	5	6	7	8	9	10	11	12
[E
F1																	13
																	14
F1.4
																	15
F2
																	16
F2.8																		/
																	16
Aperture F4																	17
																	18
F5.6																	19
F8
																	20
F11
																	21
F16
																	22
F22
F32	8"										125	250	500 1000 200040008000
30" 15"		4"	2"	1"	2	4	8	15	30	60

Shutter speed

•There are limitations for minimum and maximum EV depending on the film speed.

•In Matrix Metering, any EV above 161/3 is maintained at EV 161/3 when using ISO 100 film.

CSM b1: Shutter speed/aperture value displayed in the top LCD panel, rear LCD panel (in detailed or large display) and viewfinder can be set to change in steps of 1/2 or one EV (x 97).

Detailed Operation

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