Nikon SB 20 User Manual

Nikon

Autofocus Speedlight

INSTRUCTION MANUAL

10-11

12-13

14-16

.... 17 18-32

18-22

23-27

28-31

...32

... 33

... 33

... 33

... 33 34-35

...35

iT

CONTENTS^

FOREWORD..............................................	.... 3
NOMENCLATURE........................................	. 4-6
BASIC OPERATION .....................................	7-13
Installing Batteries................................................	.... 7

Attaching Flash Unit to Camera Accessory Shoe

Adjusting Flash Head...........................................

Programmed TTL Auto Flash Shooting

(with Nikon F-501/N2020, F-401/N4004 or

F-301/N2000).....................................................

Flash Shooting......................................................

AUTOFOCUS FLASH PHOTOGRAPHY

(with Nikon F-501/N2020 or F-401/N4004) . . ..

SETTING CAMERA SHUTTER SPEED..................

DETERMINING APERTURE..............................

TTL Mode

(tor TTL Automatic Flash Exposure Control)....

A Mode (for Non-TTL Automatic Flash

Exposure Control)..............................................

M Mode (tor Manual Flash Exposure Control) ...

Guide Number......................................................

SETTING POWER SWITCH.............................

STBY (STANDBY) Position..................................

ON Position...........................................................

OFF Position.........................................................

READY-LIGHT INDICATIONS...........................

Ready-Light Warning Functions...........................

SYNCHRO-SUNLIGHT FILL-IN
FLASH PHOTOGRAPHY.........................................	36-38
In TTL Mode................................................................	37
In A Mode....................................................................	37
In M Mode...................................................................	38
DIFFUSING THE LIGHT...........................................	39-41
Bounce Flash Photography Procedure.................	40-41
Using A Ditfuser.........................................................	41
SYNCHRONIZATION WITH MOTOR-DRIVEN
CAMERA......................................................................	42
MULTIPLE FLASH EXPOSURES.....................................	42
MULTIPLE FLASH PHOTOGRAPHY.........................	43-46
TTL Multiple Flash Photography............................	43-45
Manual Multiple Flash Photography...........................	46
AVOIDING “RED EYE”...................................................	46
CLOSE-UP FLASH PHOTOGRAPHY IN TTL MODE ....	47
TIPS ON SPEEDLIGHT CARE....................................	48-49
ABOUT BATTERIES.......................................................	50
ACCESSORIES..........................................................	51-52
Sync Cords SC-11 and SC-15...................................	51
TTL Remote Cord SC-17...........................................	51
TTL Multi-Flash Adapter AS-10.................................	51
TTL Multi-Flash Sync Cords SC-18 and SC-19..........	52
Flash Unit Couplers AS-4 and AS-7..........................	52
DC Unit SD-7.............................................................	52
SPECIFICATIONS.....................................................	53-55

Nikon

Für Besitzer einer Nikon F4/F4s und F-801

Das SB-20 ermöglicht matrix-gesteuerten Aufheliblitz und Aufheilbiitz mit mittenbetonter Messung zusätziich zur normalen TTL-Blitz- automatik und Blitzautomatik ohne TTL. Matrix-gesteuerter Aufheiiblitz erzeugt eine ausgewogene Kombination von Umgebungsiicht und Biitzbeieuchtung, die natüriich wirkt. Detaiis werden besser herausgestelit—ohne daß dadurch die korrekte Belichtung für den Hintergrund verlorengeht.

Für nähere Einzeiheiten lesen Sie bitte auch die Bedienungsanieitung zu Ihrer Kamera.

Die möglichen Biitzbetriebsarten für die einzelnen Kombinationen von Kamera und SB-20 entnehmen Sie bitte der Tabeile weiter unten.

F4/F4S-FSB-20

Pour les utilisateurs des appareils Nikon F4/F4S, F-801/N8008*

Le fiash SB-20 à mise au point automatique Nikon permet d’effectuer les prises en mesure matricielie et centrée en plus des contrôles de l'exposition avec fiash aufomafique TTL et non TTL. Le flash en mesure matricielle permet de créer un effet naturel et esthétique en remplissant les ombres marquées et en mettant en valeur les détails du sujet—sans perdre l’exposition correcte de l’arrière-plan.

Pour les détails, lisez attentivement le mode d’emploi du SB-20 et celui de l’appareil.

Référez-vous aux tableaux ci-après pour les modes de flash utilisables pour chaque combinaison appareil/SB-20.

*La Nikon N8008 est vendue exclusivement aux Etats-Unis.

6-fach-Vergrößerungssucher

Sucher

Multi-Meß-Sucher DP-20

AE-Sportsucher DA-20

DW-21

/Lichtschachtsucher

DW-20

Viseur

Viseur multi-mesure DP-20

Viseur action AE DA-20

Amplificateur 6X DW-21/

Viseur de poitrine DW-20

Objektive

\

P

s

A

M

P

_s

A

M

P

s

A

M

Objectifs

PH

PH

PH

Matrix

@

@

@

A

-

-

-

-

-

-

-

-

Matriciel

AF Nikkore/AI-P-Nikkore

Mittenbetont

O

O

O

A

O

O

O

A

-

-

-

-

AF Nikkor/Nikkor Al-P

Centrée

Spot

A

A

A

A

A

A

A

A

A

A

A

A

Spot

AF-Telekonverter/

Matrix

@

A

-

-

-

-

-

-

-

-

Matriciel

AF-Nikkore für Nikon F3AF/

Al-Nikkore (inkl. Al-S)

Mittenbetont

O*

O*

O

A

O*

O*

O

A

-

-

-

-

AF Convertisseur/

Centrée

AF Nikkor pour F3AF/

Spot

Nikkor Al (et Al-S)

A

A

A

A

A

A

A

A

A

A

A

A

Spot

Matrix

A

A

A

A

-

-

-

-

-

-

-

-

Matriciel

Sonstige Objektive

Mittenbetont

A

A

A

A

A

A

A

A

-

-

-

-

Autres objectifs

Centrée

Spot

A

A

A

A

A

A

A

A

A

A

A

A

Spot

@ Matrix-gesteuerter Aufhellblitz

O Aufhellblitz mit mittenbetonter Messung A Konventionelle TTL-Blitztotografie

*Das Blitzen erfolgt automatisch in Betriebsart A. Die Blende manuell wählen.

•Bei Verwendung der Sucher DW-20 und DW-21 ist das TTLVerbindungskabel SC-24 erforderlich.

F-801/N8008+SB-20

			Beiichtungsart	PD
	^ _Jylode d’exposition						M
				P	S	A
	Objektive Meßsystem —^
				PH
	Objectifs Mode de mesure^\
	AF-Nikkore/		Matrix	@	(ô)	@	A
			Matriciel
	Al-P-Nikkore
	AF Nikkor/		Mittenbetont	O	O	O	A
	Nikkor AFP
			Centrée
			Matrix	O*	O*	O*	A
	Sonstige Objektive«		Matriciel
	Autres objectifs»		Mittenbetont	O*	O»	O	A
			Centrée

@ Dosage auto flash/lumière ambiante par mesure matricielle O Atténuation des ombres par flash en mesure centrée

A Flash standard TTL

*Le mode d’exposition passe automatiquements sur “A”. Sélectionnez manuellement l’ouverture.

•La carte de télécommande TTL SC-24 est nécessaire lorsque l’on utilise le DW-20 ou DW-21.

@Matrix-gesteuerter Aufhellblitz

О Aufhellblitz mit mittenbetonter Messung А Konventionelle TTL-Blitzfotografie

*Das Blitzen erfolgt automatisch in Betriebsart A. Die Blende manuell wählen.

•Dazu gehören AF-Telekonverter, Al-Nikkore (einschließlich Al-S), das Balgengerät PB-6, Automatik-Zwischenringe usw.

@ Dosage auto flash/lumière ambianfe par mesure mafricielle О Atfénuation des ombres par flash en mesure centrée

A Flash standard TTL

*Le mode d’exposition passe automatiquement sur “A”. Sélectionnez manuellement l’ouverture.

•Comprend les convertisseurs AF, les objectifs Nikkor de type Al (y compris Al-S), le soufflet PB-6, les bagues-rallonge automatique, etc.

Zur Beachtung:

1.Bei Verwendung der AF-Illuminator-LED des SB-20 mit einem AF- Nikkor-Objektiv läßt sich mit Brennweiten von 25 bis 105mm arbeiten. Dieser Bereich verschiebt sich bei Verwendung des AFTelekonverters TC-16A nach 15 bis 58mm. Der Fokussierbereich liegt bei etwa 1 bis 8 Metern (mit AF-Nikkor 50mm f/1,8, bei Normaltemperaturen, für ein normales Aufnahmeobjekt mit 35% Reflexionsgrad).

2.Für indirekfes Blifzen die Kamera auf Belichfungsbetriebsart A oder M einstellen und eine der größeren Blenden wählen.

3.Bei manueller Blitzkontrolle die Kamera auf Belichfungsbefriebsart A oder M einstellen und die Blende von Hand wählen.

Notes:

1.Lorsque l’on utilise l’illuminateur d’assistance AF du SB-20 avec des objectifs AF Nikkor, la distance focale va de 24 à 105mm. Cette plage passe à 15-58mm si l’on utilise un Téléconvertisseur AF TC-16A. La plage de mise au point est d’environ à 8 mètres (avec le Nikkor AF de 50mm f/1,8 à températures normales, pour un sujet standard et 35% de réflectance.

2.Pour les prises de vue en flash par réflexion, réglez le mode d’exposition de l’appareil sur A ou M, et sélectionner une des ouvertures les plus larges.

3.Lorsque le SB-20 est utilisé avec le contrôle de l’exposition en flash manuel, régler le mode d’exposition de l'appareil sur A ou M et sélectionner manuellement l’ouverture de l’objectif.

Nikon

For Nikon F4/F4S, F-801/N8008* camera users

The Nikon Autofocus Speedlight SB-20 makes it possible to perform Matrix Balanced Fill-Flash and Center-Weighted Fill-Flash in addition to standard TTL Automatic Flash Exposure Control and Non-TTL Automatic Flash Exposure Control. Matrix Balanced Fill-Flash creates a pleasing, natural effect by filling in harsh shadows and bringing out

subject detail—without losing the correct background exposure.

For details, be sure to read the SB-20 instruction manual and your camera instruction manual.

Refer to the tables below for usable flash modes in each camera/ SB-20 combination.

*The Nikon N8008 is sold exclusively in the U.S.A.

F4/F4S+SB-20

Para los usuarios de las cámaras F4/F4s, F-801/N8008*

El Speedlight de autoenfoque SB-20 de Nikon le permite efectuar flash de relleno equilibrado por matriz y flash de relleno equilibrado al centro además del control de exposición de flash automático TTL estándar y el control de exposición de flash automático no TTL. El flash de relleno equilibrado por matriz crea un efecto placentero y natural llenando las sombras bruscas y resaltando los detalles del

sujeto—y sin perder la correcta exposición del fondo.

Para los detalles, asegúrese de leer el manual de instrucciones del SB-20 y el manual de instrucciones de su cámara.

Refiérase a las tablas que se indican a continuación para los modos de flash utilizables en cada combinación de cámara/SB-20.

*La Nikon N8008 se vende exclusivament en Estados Unidos de América.

Waist-Level Finder DW-20/6X

Viewfinder

Multi-Meter Finder DP-20

AE Action Finder DA-20

Fligh-Magnification Finder DW-21

Telémetro del fechador múltiple

Visor de pantalla en la parte

Visor

Visor de acción AE DA-20

DP-20

superior DW-20/Visor de alta

ampliación 6X DW-21

Lenses

P

s

A

M

p

s

A

M

p

s

A

M

Objetivos

PH

PH

PH

Matrix

@

@

@

A

-

-

-

-

-

-

-

-

Por matriz

AF Nikkor lenses/

Al-P-type Nikkor lenses

Center-Weighted

o

o

o

A

O

o

o

A

-

-

-

-

Objetivos Nikkor AF/

Calculado para el centro

Objetivos Nikkor tipo Al-P

Spot

A

A

A

A

A

A

A

A

A

A

A

A

Puntual

AF Teleconverter/AF Nikkor

Matrix

@ *

@*

@

A

-

-

-

-

- .

-

-

-

lenses for Nikon F3AF/

Por matriz

Al-type Nikkor lenses

(including Al-S)

Center-Weighted

o»

o*

o

A

o»

o*

o

A

-

-

-

-

Teleconvertidor AF/Objeti-

Calculado para el centro

vos Nikkor AF para Nikon

Spot

F3AF/Objetivos Nikkor

A

A

A

A

A

A

A

A

A

A

A

A

tipo Al (incluido al Al-S)

Puntual

Matrix

A

A

A

A

-

-

-

-

-

-

-

-

Por matriz

Other lenses

Center-Weighted

A

A

A

A

A

A

A

A

-

-

-

-

Otros objetivos

Calculado para el centro

Spot

A

A

A

A

A

A

A

A

A

A

A

A

Puntual

® Matrix Balanced Fill-Flash

O Center-Weighted Fill-Flash

A Standard TTL flash

*Exposure mode automatically shifts to A. Select aperture manually.

• TTL Remote Cord SC-24 is required when using DW-20 or DW-21.

F-801/N8008-I-SB-20

		Exposure mode	PD
	^ ^ ——___Modode exposición
			p	S	A	M
	Lenses Metering systerñ ^ ^
			PH
	Objetivos Sistema de medición^\^
	AF Nikkor lenses/AI-P-	Matrix	@	@	@	A
	type Nikkor lenses	Por matriz
	Objetivos Nikkor AF/
		Center-Weighted
	Objetivos Nikkor tipo		O	O	O	A
	Al-P	Calculado para el centro
		Matrix	O *	o*	o*	A
	Other lenses*	Por matriz
	Otros objetivos»	Center-Weighted	o*	o*	o	A
		Calculado para el centro

@ Elash de iluminación equilibrada por matriz O Flash de iluminación equilibrada al centro A Flash estándar TTL

*El modo de exposición cambia automáticamente a A. Seleccione la apertura manualmente.

•Al usar el DW-20 ó DW-21 se require del cordón remote TTL SC-24.

@Matrix Balanced Fill-Flash

O Center-Weighted Fill-Flash

A Standard TTL flash

*Exposure mode automatically shifts to A. Select aperture manually.

•Includes AF Teleconverters, Al-type Nikkor lenses (including Al-S), Bellows Focusing Attachment PB-6, Auto Extension Rings, etc.

@ Elash de iluminación equilibrada por matriz O Flash de iluminación equilibrada al centro A Flash estándar TTL

*El modo de exposición cambia automáticamente a A. Seleccione la apertura manualmente.

•Incluye teleconvertidores AF, lentes Nikkor de tipo Al (incluyendo Al-S), fuelle de enfoque PB-6, anillos de extensión automática, etc.

Notes:

1When using the SB-20’s AF illuminator with AF Nikkor lenses, the focal length is from 24 to 105mm. This range shifts to 15 to 58mm when using AF Teleconverter TC-16A. The focusing range is approx. 1 to 8 meters (with AF Nikkor 50mm f/1.8 at normal temperatures, for a standard subject with 35% reflectance).

For bounce flash photography, set the camera's exposure mode to A or M and select one of the larger apertures.

When the SB-20 is used in Manual Flash Exposure Control, set the camera’s exposure mode to A or M and manually select lens aperture.

Notas:

1.Al usar el iluminador AF de la SB-20 con los lentes Nikkor AF, la distancia focal es de 24 a 105mm. Este rango cambia de 15 a 58mm cuando se usa el Convertidor AF TC-16A. El rango de enfoque es de aproximadamente 1 a 8 metros (Con AF de Nikkor de 50mm f/1,8 a temperaturas normales, para un sujeto estándar con un 35% de reflectancia).

2.Para fotografía de flash de salto, ajuste el modo de exposición de la cámara en A o M y seleccione una de las aperturas mayores.

3.Cuando el SB-20 se utiliza para control de exposición de flash manual, ajuste el modo de exposición de la cámara a A o M y seleccione manualmente la apertura del diafragma.

FOREWORD=---------------

Thank you for purchasing the Nikon Auto­ focus Speedlight SB-20. We hope the SB-20 will make photography a much bigger part of your life. Get to know your SB-20, but before using it, be sure to read both your camera instruction manual and this man­ ual. Nikon cannot be held responsible for malfunctions resulting from use of the SB-20 other than as specified in this man­ ual, or from use of the SB-20 with a camera made by a manufacturer other than Nikon.

For Nikon F-401/N4004 camera users

Read the following instructions carefully when using the SB-20 with F-401/N4004 camera.

1. Nikon F-401/N4004 camera is designed for use with AF Nikkor lenses, except AF-Nikkor 80mm f/2.8, 200mm f/3.5 IF-ED and Autofocus Converter TC-16/ TC-16A.

For most photos in this manual, aperture is set by rotating the lens aperture ring. With the F-401/N4004, however, aperture is set using camera’s aperture dial. Do not forget to set and lock the lens at its smallest aperture.

For limited use of non-AF Nikkor lenses, see the F-401/N4004 instruction manual.

2. Most of the explanations in this manual dealing with Programmed TTL Auto Flash, TTL Auto Flash, etc., apply to shooting dark subjects. Flowever, by setting the F-401/N4004 to program, aperture-priority or shutter-priority auto exposure mode, with the SB-20 set to TTL, automatic balanced fill-flash is possible in situations where fill-flash is effective, even with a bright subject. For details, see the F-401/N4004 in­ struction manual. (In manual exposure mode, ordi­ nary TTL fill-flash is possible.)

NOMENCLATURE

Mounting foot

Flash head

Zoom indicator window

Zoom set ring

W (wide) for lenses 28mm or longer

N (normal) for lenses 35mm or longer

T (lelephofo) for lenses 85mm or

'longer

Light sensor lor non-TTL auto flash operation

Mounting foot lock nut

Hot-shoe contacts

Reflector slot

For bounce flash (see page 41).

Sync/multiple flash terminal

For (1) off-camera operation with a sync cord and (2) multiple flash photography in manual flash operation (page 46)

External power source terminal

Accepts power cord from Nikon DC

Aperture selection/shooting distance range panel

See pages 18 to 31.

Before using the SB-20, peel off the protective paper covering the panel.

Light output index windows
Used in M mode								Flash mode indicators
Aperture index window								Flash mode selector
Used in A mode								.... u TTI mode—for
									piuyiaiiiiiiyj 1 || _
Film speed scale window							■ ■
									TTL auto flash
Film speed index
									operation
Film speed knob								■
									M mode—for
Flash shooting distance range								KBFVnìB	manual flash
indicators									operation.
The patterned bar (fourth bar from
the top) shows programmed TTL
auto flash information.
Distance scale window								Aperluie index knob/iight output
Distance scale selector								selector knob
								Used in A and M modes
Power switch
					READYBOUNCE
See page 33.
Open-flash button								Bounce set indicator
For (l) test firing in A mode, (2) multiple
								Lights up when flash head is rotated.
flash exposures (page 42) and (3) to turn on
SB-20 after it is automatically turned off								Ready-light
(page 33).								See page 34.

BASIC OPERATION

Installing Batteries

Remove battery chamber	2 Load four 1.5 V AA-type
' cover.	' penlight aikaline-
	manganese batteries or 1.2 V
	NiCd batteries into the
	battery chamber.
	For battery information, see page
	50.

3To reattach battery

'chamber cover, align front

edge of the cover with battery cover index on the flash unit, then push cover down and siide as far as it goes.

Attaching Flash Unit to Camera Accessory Shoe

^ Turn the mounting foot	Slide mounting foot	0_ Tighten lock nut firmly.
' lock nut clockwise as far	' forward into the camera’s
as it goes.	accessory shoe as far as it
	goes.

With Nikon F3-series cameras with DE-2 or DE-3 finder: Attach Flash Unit Coupler AS-4 or AS-7 to camera's accessory shoe before mounting the SB-20. The SB-20 cannot be mounted on F3-series camera with the other finders.

Adjusting Flash Head

Make sure bounce angle ' set knob is set at 0°.

W(Wide)

For 28mm or longer lenses

N (Normal)

For 35mm or longer lenses

T (Telephoto)

For 85mm or longer lenses

Rotate zoom set ring until desired zoom setting appears in ' the window.

Make sure zoom set ring is properly set at its click-stop position.

Programmed TTL Auto Flash Shooting (with Nikon F-501/N2020, F-401/N4004 or
F-301/N2000)	------ ' ' .........

Steps 9 through 11 provide instructions for program­ med TTL auto flash shooting with the Nikon F-501/ N2020*, F-401/N4004** or F-301/N2000* camera.-

For other flash exposure operations (TTL auto, non-TTL auto and manual flash exposure operations) see “SET­ TING CAMERA SHUTTER SPEED” on page 17 and "DETERMINING APERTURE," pages 18 to 32.

* The Nikon N2020 and N2000 are sold exclusively in the U.SA. and Canadian markets.

’"'The Nikon N4004 is sold exclusively in the U.S.A. market.

Q Set the SB-20’s flash mode selector to

TTL.

For programmed TTL automatic flash opera­ tion, note the following:

•Use Al-S type lenses only. With Nikon F-401/ N4004, use only AF-Nikkor lenses, except AF-Nikkor 80mm f/2.8, 200mm f/3.5 IF-ED and Autofocus Converter TC-16/TC-16A.

•For autofocus operation, set the Nikon F-501/N2020’s focus mode selector to S for Single Servo Autofocus mode, or set the Nikon F-401 /N4004 to A for autofocus mode. For details, see pages 14 to 16.

For the flash shooting range in programmed TTL auto­ matic operation, see table on page 21.

The shooting distance range panel at the back of the SB-20 also helps you to see the flash shooting range. To read a proper distance range, set the film speed knob and distance scale selector (see page 19.) A pat­ terned bar among the flash shooting distance range indicators shows the shooting distance range in pro­ grammed TTL auto operation.

10

With F-501/N2020

With F-301/N2000

s

-|Q Set camera to a programmed exposure mode (P DUAL, P ■ or P HI for F-501/N2020; P or P HI for F-301/N2000).

With the Nikon F-401/N4004, set the camera to either program auto (aperture dial to S, shutter speed dial to A) or shutter-priority auto (aper­ ture dial to S, shutter speed dial to desired speed) exposure mode.

Set lens to minimum ’ aperture (largest

f-number).

With AF Nikkor lenses, lock lens aperture at minimum setting. (See the lens instruction manual).

With the Nikon F-401/N4004, this procedure is unnecessary because the lens is always locked at the smallest aperture.

11

____

4 1

TTL mode is selected

12.Set power switch to STBY (standby

‘position) to turn on SB-20.

LED indicating seiected fiash mode immediately lights up.

12

13. Lightly press shutter release button and

' viewfinder ready-light comes on to indicate flash is ready to fire.

For blinking ready-light warnings, see page 35.

14. Fully depress shutter	■|5_ Turn off the SB-20.
' release button to take
picture.

Unless viewfinder ready-light blinks after the shot, your flash exposure will be perfecf; if it does blink, pic­ ture may be underexposed— move closer to subject.

Do not fire flash toward or near the eyes; it may dam­ age the retina.

13

AUTOFOCUS FLASH PHOTOGRAPHY (with Nikon F-501/N2020 or F-401/

		.		N4004)
In programmed TTL autofocus flash photog­
raphy, use film with a film speed specified in
the table below for greater depth of field:
	Lens maximum	Film speed
	aperture
Lens	f/2.8 or faster	ISO 50 or faster
only	Slower than f/2.8	ISO 100 or higher
F-501/	f/1.4 or f/1.2	ISO 50 or higher
N2020	f/1.8,f/2, f/2.5or			•\ _ Set the Nikon F-501/N2020’s focus mode
with		ISO 100 or higher
TC-16A	f/2.8			' selector to S for Single Servo Autofocus
				mode, or set the F-401/N4004 to A for auto­
				focus mode.
				Continuous Servo Autofocus cannot be used for auto­
				focus flash photography.

14

2. Set aperture.

With Nikon F-401/N4004, use camera’s aperture dial. Don’t forget to lock lens at minimum position.

For programmed TTL operation, set to smallest lens aperture (largest f-number) and lock the lens aperture. (For details, see the lens instruction manual).

For other flash operations, set as follows:

		Lens maximum	Aperture setting
		aperture
		f/2.8 or faster	f/2.8 or larger f-number
	Lens		(f/2,8, f/4, f/5.6, etc.)
	only	Slower than f/2.8	f/5.6 or larger f-number
			(f/5.6, f/8,f/11, etc.)
	F-501/	f/1.4or f/1.2	f/2 or larger f-number
	N2020		(f/2, f/2.8, f/4, etc.)
	with	f/1.8, f/2, f/2.5orf/2,8	f/4 or larger Lnumber
	TC-16A		(f/4, f/5.6, f/8, etc.)

15

3 Lightly press camera shutter release ■ button.

When ready-light comes on but ambient light is insuffi­ cient for autofocus operation, AF illuminator fires to start autofocus operation.

If ambient light is sufficient, the AF illuminator does not fire.

16

^Confirm whether the green in-focus

'indicator LED iights up, then fuliy depress the shutter reiease button.

If focus-not-possible indicator LED (x) remains lit when using the Nikon F-501/N2020, or if focus indi­ cator LED (•) blinks with Nikon F-401/N4004, auto­ focus fiash photography is impossibie. Focus manuaiiy on the ciear matte fieid.

SETTING CAMERA SHUTTER SPEED

Set camera’s shutter speed, referring to the					table	As shown.in the table, automatic sync speed setting is
below.						available with most Nikon cameras.
Nikon camera	Synchronization	Camera setting			Running shutter		Viewfinder shutter speed indication
	speed (sec.)				speed (sec.)
		P DUAL (F-501/N2020 only), P, PHI			1/125		125 lights up
F-501/N2020*	1/125 or slower	A, 1/2000~ 1/250sec.			1/125		125 lights up and LED lor proper non-flash shutter speed blinks
F-301/N2000*		1/I25~1sec. and B			as set		LED tor manually set shutter speed lights up and LED for proper non-flash shutter
							speed blinks: no indication at B
		Shutter dial	Aperture dial
		A	S				—
		A	1.4-32		1/100		—
F-401/N4004	1/100 or slower	1/2000- 1/125sec.	S				-
		1/60-1sec.	S		as set		—
		1/2000-1/125sec.	1.4-32		1/100		—
		1/60Isec. and B	1.4-32		as set		—
		All shutter speed settings except			1/250		LCD shows 250
		M250 and B in P, S and A modes
FA	1/250 or slower	1/4000- l/500sec. in M mode			1/250		LCD shows M250
		1/250-Isec. in M mode			as set		LCD shows manually set shutter speed
		M250 and B in P, S, A and M			as set		No indication
		modes**
		A, 1/4000-1/500 sec.			1/250		-
FE2	1/250 or slower	1/250-8sec.			as set		—
		M250 and B‘*			as set		—
		P, A, 1/1000-1/125sec.			1/90		Two LEDs representing 1/90sec. light up
FG	1/90 or slower	1/60Isec			as set		LED for manually set shutter speed lights up
		M90 and B**			as set		No indication
F3-series		A			1/80		LCD shows 80
(via AS-4 or AS-7	1/80 or slower	1/2000-1/125 sec.			1/80		LCD shows M80
coupler)		l/50-8sec. X, Band!			as set		LCD shows manually set shutter speed. no indication at B or T
FM2	1/250 or slower	1/250Isec. and B			as set		-
FG-20	1/90 or slower	A, (C , 1/1000-1/125sec.			1/90		—
		1/60~lsec., M90and B			as set		-

"In TTL mode, programmed TTL auto flash operation will be performed with the Al-S type lens and F-501/N2020 or F-301/N2000 set at programmed auto exposure mode.

'Improper tor programmed TTL auto flash operation and TTL auto flash operation.

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DETERMINING APERTURE----------------------------------------

TTL Mode

(for TTL Automatic Flash Exposure Control)

TTL mode is for exclusive use with Nikon F-501/N2020, F-401/N4004, F-301/N2000, FA, FE2, and FG cameras only.

For TTL auto flash operation with the Nikon F-501/N2020, F-401/N4004, or F-301/N2000, be sure to set the camera to aperture priority auto or manual exposure mode.

For correct exposure in TTL mode, use film with a film speed specified in the table below:

Camera	Film speed
F-501/N2020 and F-301/N2000	ISO 25 to 1000
F-401/N4004, FA, FE2 and FG	ISO 25 to 400

To determine aperture with the SB-20’s aperture selection/shooting dis­ tance range panel for TTL auto flash operation, read the following : (For programmed TTL auto flash operation, see pages 10 to 11.)

i Set SB-20’s mode selector ' ■ to TTL.

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2 Align film speed in use with the film ' speed index.

For intermediate film speeds, use figure nearest the film speed in use. With ISO 32 film, for example, set to ISO 25. With film speeds not listed on the scale, be sure subjects are sufficiently within the shooting dis­ tance range indicated on the back of the SB-20.

3To read proper shooting distance range,

'set distance scaie seiector to letter shown in zoom indicator window.

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