Canon Fl400mm f5.6 User manual

Canon

SUPER

TELEP

,

HOTO

LENSES

.::F~//~~~v/

~::

CANON

LENS

Fl400mm

F5.6

CANON

LENS

FL600mm

F5.6

CANON

LENS

FL800mm

F8

CANON

FOCUSING

UNIT

INSTRUCTIONS

f~ffl~~~.

English

/J

apanese

Edition

2

For

many

years

it

'has been

the

desire

of

camera

fans

for

telep

hoto

lenses

with

increased

optical

performance

and

maneuverability

and

more

compactness

,

However

these

features

were

not

realized

due

to

limitations

in

design

and

manufacturing

techniques,

The

Canon

telephoto

lenses were

designed

in

combination

with

the

F 1

system

With

the

intensive

use

of

an

electronic

computer

the

antici

·

pated

aims

were

achieved.

Also, by

separating

into

the

lens

section

and

the

focusing

unit

,

it

is now easy

to

change

the

focal

lengths

by

just

interchanging

the

lenses. In

addition

to

improved

optical

performance

,

maneuverability

and

compactness

,

the

group

of

Canon

telephoto

lenses

were

greatly

up·

graded

with

portability

and

economy

in

mind

.

Telephoto

lenses,

which

are

indispensable

for

photograph

ying

those

subjects

which

the

camera

cannot

close up on, are

very

eff

e

ct

iv

e in a

wide

range

of

fields

such

as

shooting

sporting

ev

ents

, news

photog

-

raphy

and

recording

wild

life.

m~av~~~~~Kbk~~~~tt~

.

~

tt~~

~

~~K~~

/~

(7

H

t.

7J~

~~

~

h

~

i

lAc.

7J~

1i"

!H

t

!l$!Ji!:i:J5z1i11T~f!J[Jn,zJ7J'

G

~lJI.

~h~~

t,n

jj'ij7J~tl0

'?

i

l..-tc.

of--T

/

~M:1~Jm:

v

~

~'It-of--'r'

/

~

F1

~~~~A~~~-m~l..-~~~~hkv~~~

~~~~-~~

J.§IR

f

~

l..-

~J'iJi'M~

§

i¥J~J¥nl1:

l..-

~~'i

-t

i

tc.

v

~~'

~

7 ;;j'

-71

~

Y~='l~K%.-t~~~Kl'?

V~~~~~-t~~~~

~~

~.~~~K~~Gh~l~K~~~~i-t

~~tt~

.~tt~

",

J

~

~/~

(7

H

t.

~~3)lX=

,

1Jr[~

~~t'FrH1

f;lY:i'

H

1~l\:,~

'

[i,l..-

0f-

-\'

/

~itljPJ.Jm:

V

~

~'1l'f~*1VMtJ:

(7"

V -

F'

7

'l

7

°

7J~~3:Jl.

-(:'~

i

l..-tc.

t~J!I71~I:t

J~

i3tJ:fJ!Z.~{:$v::'?z7J>-t

~

-e

~

t,n

~Jm:

v

~

~'

It-

7,

n;

-

'/

#-il:@:

~J

7'i-

ilil

J

~

~fJi,\Hf~i61dJ:

C

J:t

~

'51

HlY

V::'

J1Z:1J

~

~tfIi

l..-

i

-t

~.htl0~~Jm:fi~K~~m<~~~

3

4

Features

of

FL

400mm,

600mm

and

800mm

Lenses

1

Optical

performances

were

greatly

increased

with

the

help

of

an

electronic

computer

2.

Photography

can be

immediately

performed

by

simply

connecting

the

lens and

the

foc

using

unit.

3. The

telephoto

ratios

were

made

as

small

as

possible

so

that

the

overall sizes

of

the

lenses

would

be

small.

4.

With

the

focusing

unit

as

the

base,

focal

lengths

can be

easily

changed

by

just

int

erchanging

the

lenses.

5. The

automatic

aperture

mechanism

,

with

which

stopped-down

metering

can be

performed

, was

adopted

.

6. The

rack

and pinion

system

was

adopted

so

that

focusing

can be

smoothly

performed

even when

the

camera

is

heavy

with

various

attachments

(Motor

Drive

Unit,

Film

Chamber

etc.)

It

is

designed

for

safety

and reli

ability

.

7 When

the

focal

length

changes

by

interchanging

lenses,

the

aper

-

ture

scale

indication

automatically

changes

with

the

manipulation

of

the

focal

length

shifting

ring.

8.

An

ordinary

and

compact

48mm

filter

can be used

by

inserting

it

into

the

lens

barrel.

9. Hoods,

indispensable

for

telephotography

, have been

built

in (FL

600mm

F

5.6,

FL

800mm

F8)

10

. Due

to

the

compactly

designed

telephoto

lenses, on

lyon

tripod

is

necessary

.

11 A

neck

strap

has been

attached

to

the

focusing

unit

for

con-

venient

portability

. Of

course

,

this

neck

strap

is

suff

i

cient

for

also

holdin

g

the

lens and

the

camera.

FL400, 600,

800mm

v:"""

;;(

'

(7)~~~

1

~Y~

~

-~~~~Kl~

~~tt~~

-

~~~~~~iL~

2

VY~~7

~

-~~YY~~

'i

~~~~~~~~~M~~.W

-e

-t

<"Ji'&~~c~;h

i

~

3

*Jill:.tt~-c~

~

t~~'

J

\~

<L

~{;f~-lj-1

7~'~

~

Y

/

~

:;

~

~c

L

i Lt-::

4.

77J

'

-~'/Y:;'~~

'i

~~""'::-,A~c

VY;:(~:£~~~t~~-C

~Ji,

~cj,l;A'.~f~ffiiJ~Y:J'~

-c'

~

i-t

5

~~~~OO~-C~ffl-C~~~~~~~~

••

~~fflLiL~

6, 7

~

-

~

Y

:;'ft

~;<

7 *

{

*~~(jffiiJ~~~

d~ir

-'C

-

~

-

F'

717

"

7"

IVAT

",

h~-*~~)

-C'~kL\-;;qc~rli-C'~

~157'i:;~=*Y~~~fflL

~~~~~ML-C~i-t

7

VY~:£~Kl~-C~A~.~~~-c~

~~§~*~~~A

~.m~~~DYY~.W-C~~~KW~~b~

~~~;hi

-t

8.

48mm

~

5-

Jl)ts'']-C'

~

Y

/

~

:;

~

tt..

7 " Iv

~

-

~jjiARI"l~9='rs9

~c

~

L~,z,-C{~ffl-C'~

i-t

9

*

JiJi'&~~cftJ(iJ'~tt..~

7 -

F'~kJ3.~jz,~

i Lt-:: (

FL

600

mm

F

5.6

FL

800mm

, F 8)

10

~

Y/

~

:;

Ht~Cl

~

-

1IB1~_

~1

1

J

-C'~fif

:t

*fFiJ~-C~i~

11

m~tt~~.L

7 ~

-~~YY

~

=~~K*'i:;,A~7~

~

~~~iL~

~~6,z,vY~

~;<7~~~#~~ii-C*

fif-C'~i~

5

Lens

Attachment

/

Detachment

Indicating

Mark

v

:.--

AJli!linloJj§:i~

Lens

Attachment

Ring

v

:'--

Al&~

1

i

(t

1)

:.--

?'

Lens

Barrel

Tightening

Knob

v

:'--AlJ!

!

I'l

~:iE/

7'

Focusing

Lock

Knob

7"-fJ'.---:.--?

'

,,,,?/,/

Focusing

Knob

7,,-fJ'.---:'--?

'

/7

'

Focal

Length

Sh

ifting

Ring

~!~~§:;a-l;]]

~

j~;z

1)

:.--

7'

Distance

Scale

~

§:;a

El

m\

A-M

Aperture

Ring

A-M*li~-I;]]ryj~;z

1)

:.--7'

Red

Dot

*,<!i.

istance

Index

Mark

~

§

:;a j§:

i~

Filter

Holder

71)v

o$l-;j;

)

vJ'-

6

Ve

rti

ai/

Horizontal

Position

Change

Index

Mark

,liit

iIHi:llBGjl!j§:i~

ns

Barrel

Holder

V:'--AlJ!!I'l;j;)v

o$l

'-

ns

Attachment

Position

Inde

x

Mark

l&

ry

1

i

(Hi:1i'j§:

i

~

Aperture

Index

Mark

~x

ry

j

§:ill

Bayonet

Ring

, {

O3

;t- "

~

1)

:.--?

'

Automati

c

Aperture

Le

ver

I'lllJ~x~v'

{

-

Lens

Barrel

Supporter--

__

V

;..-

;:qjUroJ:;tI~i;'

7

Technical

Data

of Focusing

Unit

-

-----'-

t~

~

1

I I

Data

FL

400mm

F5.6

FL

600mm

F5.6

FL

SOOmm FS

Lens

Composition

Built·in

two

elements.

Performs

connect

i

ng

with

te

le

photo

lenses.

Focusing

Rack

and

pinion

type

(

with

lock

mechanism

)

I (m)

00

30

15 10

S 6 5

4.5

I

00

1005030201512

I

00

1

00

50

30

25

20

IS

10

Distance

Scale

00

300

150 100

70

50

00

300

150 100

SO

70

(

ft

)

00

100503025201715

4035

60

Aperture

System

Automatic

Manual

Aperture

Possible

with

A·M

aperture

ring

Aperture

Scale

5.6 S

11

16

22

32

I

5.6

8

11

16

22

32

I 8 11 16

22

32

In

fra

r

ed

Mark

Eng

ra

ved

F

ilter

Size

48mm

Tripod

Sockets

1/

4·inch

and

3/

8·inch

on

len

s

barre

l

supporter

Neck

Strap

built

in

Max.

Diameter

10Smm

Overall

Length

285.5mm

from

lens

mount

to

camera

mount

305.5mm

from

front

tip

to

camera

mount

Weight

3.1kg

Front

Dust

Cap

Exclusive

Rear

Dust

Cap

Dust

cap

for

FD

lenses

8

------

~

I

{t

~

FL

400mm

F5.6 I

FL

600mm

F5.6 I

FL

800mm

F8

v /

~.

m

JlX:

He

'iZl

2

1'3:

v /

~

'

i::

*15#

L-

-C

1ill:fl!;;

'2:

>b

'0

7

i"

-7)

'/

/

)'.

'7

';I

)'

t,

"

:=-

:;t

/5'~

p

';I

)'

l1jHiHJ

~

(m)

00

30

15

10

8 6 5

00

100

50

30

20

00

100

50

30

25

Wg

v~1t

0

!&

4.5

151210

2018

- -

100

50

30

25

300

150

100

300

150

100

(

ft

)

00

00 00

2017

15

70504035

807060

mx

I)

~

5'~

EI

rVJ

-'f

illJJ

mx

I)

ilJ~!;;

A,M

mx

I)

m

I)

l*;t

~

/

),'K

,

J:

Q

mx

I)

g

~

5.

681116

22

32

I 5.

6811162232

I 8 11

16

22

32

$

7'~

'7

-

)'

;/)

I)

7 1 /v

!J

--tj-

l'

~

'

48mm

-:=

)Jtll

id-

e

'A

v /

~

~Bfi\l

:x:j;'ftn:::'

7:11

/7-

%1'

/7-0)=$';/)

I)

;f.

';I

:;

7-

I-

'7

';I

7" ;/)

I)

1&

*-

1?"f

108mm

~ ~ v /

~'l\i(

I)

('

Pt'7?

/

I-

ffij

iJ'I? ;IJ;'

7'7?

/

I-

illi

"£-C

285

.

5mm

fl

trffl

\~

:ruililiJ'

I?;/)

;.

'7

'7?

/

Hill"£

"'C'

305.5mm

ill

.6.

3.1kg

All.

Jl1j'1f\

1

!J"

7-

I-

~

-t

'

';I

7" W

Jtl

1:&

'1f\1

!J'

7,

I-

~

-\'

';I

7"

FD

v /

~)!l

(J"

7-

I-

~

-\'

';I

7"

9

Technical

Data

for

FL

400mm

F5

.6. FL

600mm

F5.6 and FL

800mm

F8

Lenses

~

I

Data

FL

400mm

F5.6

I

FL

600mm

F5.6

I

FL

800mm

F8

Type

\

Telephoto Telephoot

I

Telephoto

Picture

Size

24mm

x

36mm

24mm

x

36mm

24mm

x

36mm

Focal

Length

and

Aperture

400mm

F5.6

600mm

F5.6

800mm

F8

Ratio

5-element

4-element

5-el

ement

Lens

Com

position

in

4-component

in 4-

com

po

nent

in

4-component

(

With

Focusing

Unit

)

e-element

) (6-

element

)

e-element

)

in

5-component

in

5-component

in

5-component

Newly

Developed

Glass

1

element

Angle

of

View

in

combined

use

6.2

' 4.1

3.1

of

Focusing

Unit

Telephoto

Ratio

of

Focusing

0.89

0.8

0.67

Unit

,

Coupling

Mount

for

Focusing

Exclusive

spigot

mount

Exclusive

spigot

mount

I

Exclusive

spigot

mount

Unit

Hood

Screw-in

exclusive

hood

Builtin Builtin

Overa

ll

Length

125mm

196mm

262.5mm

Overa

ll

Length

of

Focusing

338mm

448mm

1

508mm

Unit

(

to

mount

)

Weight

0.79

kg

1.9

kg

2.26

kg

Lens

Cap

90mm

125mm

\

125mm

Dust

Cap

Exclusive Exclusive

Exclusive

10

FL

400mm

F5.6

, FL

600mm

F5.6, FL

800mm

F8

V

/:A

'O)'I:1

t

m*

~

I

{±

f*

FL

400mm

F5,6 I FL

600mm

F5,6 I FL 8

00mm

F8

:tlI!

~

Ml

""'

~

Ji

!I:l:\

~

J8l:

M

~

J8l:

il!!i

l!il

-tj-

-1

;7."

24

x

36mm

24

x

36mm

24 x

36mm

;f;\;}2,ME!~lfto

J:

0'

p

if

It

400mm

F5,6

600mm

F5,6 8

00mm

F8

v

'/

X

WJ

JtZ

f

Y:

fiJi:

4

{if

5

f.j(

4{lf 4

ty:

4

-llr

5

fY:

7."-')

J'/'/;/

=>-=:'-;;

(5

ill

7

ty:

l (5

t1

6

ty

J (5 n 7

ty:

)

H'',-li'Z

l

'lfr

fiIJ

if'

=)

7,

It

:!z:

7.--j)-/,/,l=>-_-;;

I--

6,2' 4 ,10 3,1'

if

JtZ

!l)

il!!i

fiJ

7.--j)'/,/'/;;2--;;

I--

0,

89

0,

80

0,

67

if

5X:

!l)

~

JM

It

7

."-j)

'/'/

,:/;;2=:'-;; r

~)fj7'

I::

"

::{-;;

r<'>7'/r

~)fj;A

1::

"

--:j'"

r'"">7'/r

WHl7,1::

"--:I"

r<"/'/r

.@

f.5

'""

>7

'/

r

7 -

r'

~ffl7-Fi?t:)b.7,o.

ill

)b

.7,0.

m

)b

.7,0.

V

'/

;7.'

!l)

~

ffi:

125mm 196mm

262

,

5mm

7.,-j),/'/

,

l;;2_"

r

f,-1iX:!l)

~~

-<

>7

'/ r

lID

33

8mm

44

8mm

508mm

i-C)

m:

EL

0,79kg 1

9k

g 2,

26kg

JTI.

v

'/

;7.'

4-

l'

" 7"

90mm

1

25mm

125

mm

;9'

;A

r

4-

-to

" 7"

~:

fA

~

Jtl

*

ffl

(

JI:H

~

J8l:

*

Jlli

)

11

12

Attaching

of Lens

and

Camera

1

Attaching

/

Detaching

of

Lens

1- 1 Align

the

positioning

index

mark

(red dot)

of

the

lens and

the

attachment

position

index

mark

(red dot)

of

the

focusing

unit

and

insert.

At

this

time

,

make

sure

that

the

key

of

the

lens is in

the

key

groove

of

the

focusing

unit.

1-2

Turn

the

lens

attachment

ring

in

the

direction

of

TIGHTEN

accordin

g

to

the

lens a

tt

achment/detac

hme

nt

indicating

mark,

and

ti

g

hten

securely. The

lens can

be

easily

removed

by t

urnin

g

the

lens

attachment

ring

in

the

direction

of

LO

OSEN

.Th

e

interchangeable

telephoto

lenses are

quite

heavy, so be very

carefu

l

not

to

drop

them

when

attaching

or

detaching

.

v/,;(

<to

J:

V:h

j.

'70)1& I)

11

It

1 L--./ :;(

0)

1&

U1i

lt

1&~)

lit'

L

11

v:/;?;'V')f:s'z:ilR~6btlif~

(

~ln

c7

;;--tJ';F:/!f:::L",--:;

rV')I&

~#~&~m~

~~)

~*b~~~6b~~i~

~V')c~v

:/

;(

V')

if- -

iJ'

7

or

-

tJ

'/

:/

!f:::L

"'-

-:;

r

V')

q--

-

~~::.

A

-:>

~

l

:t:>

~

c~Ti'iliiJ'6b~

<

t':'~l

1-2.

v:/

;?;-%fH5t;!]roHliff~1::'

Lt-:'iJ'-:>

~

TIGHTEN

)}roH::'

v:/

;?;'J1jz

~

1'

JH

V

:/

,l,l~1IIl

L

L-:>

iJ'

~

*1ii6b1'l~

i

'1-

J1jz

~

vtf~~1Hi

v:/;?;'J1jz~fl~V

:/:7'~

LOOSEN

)}0J1::'@]Li~c~,Jf1ji1::'v:t

f.ni~

•

v:/

;?;'vH§~tJ::m.s:iJ,ti0

~

i

~iJ'

G

;jq'JJ5~V')~~::,vtCf.-C'3Z*

~~~l

l~K~~~ttB<~~l

13

14

2.

Attaching

onto

Tripod

Securely

fix

the

lens by

utilizing

the

tripod

socket

on

the

lens

barrel

s

upporter

.There are

two

tripod

sockets

, 1/

4-inch

and

3/8-inch

so

that

all

kinds

of

tripods

can

be

used.

• Use

sturdy

tripods

that

can

support

the

heavy

w

~

ight

of

the

lenses.

3.

Attaching

onto

Camera

3-1

Align

the

red

dot

on

the

bayonet

rin

g

of

the

lens

to

the

position

·

ing

pin on

the

inside

of

the

bayonet

ring

.

3- 2 Align

the

red

dot

on

the

camera

body

with

the

red

dot

on

the

bayonet

rin

g and

insert

. Then

attach

into

place by

turning

the

bayonet

ring

clockwise

.

2.

:=:.lJIiIl",-O)1&

I)

{tlt

v /

;:;(~HJllJ3t*-tI'K:

-

~vt

Gnt--:

=

IW1;h

t.-

1\~5f

U

}fj

L"C

v /

;

(~

L

--:

,iJ' Ij

~JE

Vi-r-

. =

lJii!;h

t.-1\vt

U 1

/7-

c%1

/-7-O)

_

:fmiJ~tl;

Ij tl;

GI9:>7.:>f!

~

0)

_

!l!1!

iJ

~

{

~m

-c

~

-:J:

-r-

.

v/;:;(O)m~K~~Gn7.:>~*~

=

~~~

~

}fj<~~l

3.

:tJ

;('70)1&

\J

1tlt

3-1 v /

;;f..

'

0)/~

'3

*

'/

r

~

/

!fO)tJj;,8~

/~

'3

*';J r

~

/

;?"O)I:t::

j{IW

v=-

tl;

7.:>

1.si:[i

g"

6i')

1::

0

/

v=-itb-1±

-:J:-r-

3-2 -j;

~

'7

;fT'

-f

0)tJj;,8C/~

'3

*';J r

~

/

fO)~.f;,\,?,

~it

b-1±-Cvt6i')

J2:,h-

/~

'3

*

';J r

~

/f~AifH:nIrTH=-

[EJ

L"CJ&lj

f:l-

vt-:J:-r-

15

16

4.

Setti

ng

of

Distance

Scale

Turn

t he

focal

length

shifting

ring

and

set

it

so

that

the

aperture

index

mark

of

the

figure

indicatin

g

the

focal

length,

of

the

lens

to

be

attach

·

ed,

falls

into

the

cl

i

ck

.

At

this

time

,

the

distance

scale

corresponding

to

the

lens is also au

tomatically

set

.

5.

Attaching

/

Detaching

of

Filters

A col

orless

,

transparent

,

parallel

,

flat

surface

glass is built

int

o

th

e

filter

hol

der

When using a

filter

remove

this

glass by

turnin

g

it

co

unt

erclockwise.

Then

securely

scr

ew

in

the

filter

When

not

usin

g

a

filter

be sure

to

keep

this

parallel

,

flat

s

urf

ace glass

screwed

in.

Moreover

always keep

the

filter

holder

inserted

when

photographin

g.

Light

leakage

or

ou

t·of

·

focus

will

occur

when

photographing

without

the

filter

holder

inserted

into

place.

4.

g§iilit§!&O)t

.

~

~~#~kvYX~~Am.K~~

~Am.~~~~~Yy

~

ITII

L L

-t

~

v Y

;(

~m,B~Ei:~lt~~-t~'¥~~

~

:ri'i

,

I%'U);

!l

~y!lK~~~~~~Kky~Li-t

~~t~vYXK~~

Lkm.§.~e~~Kky~~hi-t

5.

7.f![.,5'-

0)

!&~J{t(t

!&~J(i9L

7

.(

;I..-!;l

-;G;I..-

!;l' -

V=-

fim5~

gFJ

tt..

~Hl"'iLilii

-})'

:7

7-

iJ;

A":)

L

\,

i-t

7.(~!;l-~~m-t~t~tl~ff~mff:77-~~~LK

I

EJ

L L

fi

-r

L

7.(;I..-!;l

-~ L

":)

iJ'

~

h

t.;IZ:,

Iv

-C

<

fe.

~

\,

7

.(

;I..-!;l

-~{tm

Ltt..\,<\~-@lfi~D~llif;;'J·:7

7,

~£d?-rh

t.;IZ:,1v

-C':j:o\,

L <

fe.

~

\,

;t

fe.

7.(

;I..-!;l

-;G;I..-!;l"

-

li1!Jl(;v=-zl;fe.

":)

L

tl~-r~L;IZ:,Iv-C:j:o~i-t

~~~\'kii~mLi-tt

~

"Jt

l:

°

Y,G7~:j:o-thiJ;zl;

~

ii-iJ'G-::'tt~:<

fe.~\'

17

18

Photography

1.

How

to

Focus

Aim

the

lens

at

the

subject

and

focus

the

lens by

turning

the

focusing

knob

whi

Ie

looking

through

the

viewfinder

Tighten

the

focusing

lock

knob

when

the

accurate

focus

has been

obtained

so

that

the

focus

does

not

move

.

• The

focusing

mechanism

is

designed

for

light

and

smooth

operation

even

when

the

weight

increases

due

to

the

various

attachments

to

the

camera.

Fix

the

position

of

the

lens when

accurate

focus

has been

obtained

so

that

it

does

not

move.

2.

Changing

Camera

Positions

For

changing

the

vertical

and

horizontal

positions

of

the

camera,

loosen

the

lens

barrel

tightening

knob

,

rotate

the

lens

barrel

to

the

desired

position

, and

then

tighten

the

knob

again.

The

click

position

,

to

which

the

vertical

and

horizontal

position

index

marks

align

,

indicates

a

90

degree

rotation

1

t:./

~

O)-e.ni±:IJ

v /

;(~'f)j(~

{

*v~r<u

VJ-

7 7

-1

/;9"

-~

,m

~

ttiJ;!? 7

,,-

-

:/J

j

/!f

7'~@lbV-C~b-lti-t

1::

0 /

riJ;~-?t

-:.

{ftfii-C·7

,,--

~j/yp,?

~~M~B~

~/r.~~~~~~

l5~

~L.i-t

.

7~-~j/yn~~~*~~~.-Cm~~~L.k.~-C

t

~A-~K~~-C~~l5.<~

-?

-C~

i-t

~/r~b

-ltiJ;-tIv

tC:!?~!E

L.

-C

IE

L.

~

1::

° /

I-

~

fiWf*

L.

-C

<

tc:

~

2. :h)i

7tLlI:O)~~

~~~~.&.

m~.~~.n

v/~~~~~

~~~~

~-Cv/~~~~@l~~-lt

~~~&~-Cv/~.~~~

~

~M~tHJ'

i

-t

.j'i1t{ftiIT:;£J:~H~~~~

5 ?

~

, ?

{ft

j[tVi. 900

~@l~i:!:~

~

L.

-C

~

i-t

19

20

•

The

rotating

volume

of

the

lens is

120

degrees

to

left

and

right

,

or

a

total

of

240

degrees

,

with

the

horizontal

position

as

the

standard

3.

Operation

of

Apert

u

re

3- 1

Automatic

aperture

This

is

the

mechanism

with

which

the

desired

f/

stop

is

preset

. The

preset

aperture

ring

is used When

the

A·M

aperture

ring

is

set

at

A

position,

and

the

preset

aperture

ring

is

set

at

the

prescribed

f/

stop

,

the

aperture

automatically

closes

down

to

the

preset

f/

stop

for

the

in·

stant

that

the

picture

is

being

taken

and

then

returns

to

full

aperture

opening

after

the

shutter

has been released.

3- 2

Manually

operated

aperture

Complete

manual

operation

of

the

aperture

is

possible

by

setting

the

A·M

aperture

ring

at

M

position.

The

f/

stop

can be

freely

changed

by

turning

the

preset

aperture

ring

.

The same

effect

can be

obtained

by keepi

ng

the

A-M

aperture

ring

set

at

A

position

and

then

t

ipping

the

stopped

·

down

metering

lever

towards

the

lens side and

locking

it

.

With

this

met

hod ,

deciding

the

exposure

and

conf

i

rming

the

depth

of

field

can

bot

h be

performed

at

the

same

time

.

Canon Fl400mm F5.6 User manual

Popular Camera Accessories manuals by other brands