Lenses & filters
Mamiya 645 80mm macro F4 User manual
User manual for Mamiya 645 80mm macro F4. 11 pages in English. Read the original PDF, download or print a copy without registration.
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Document details
- Brand
- Mamiya
- Model / document
- Mamiya 645 80mm macro F4
- Document type
- User manual
- Language
- English
- Pages
- 11
- File size
- 3.3 MB
- Category
- Lenses & filters
- Document date
- Not specified in catalog
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Page 2 · Read text
80mm F4N
English Instructions
Donated to www.orphancameras.comView original page 2Page 3 · Read text
How to Use the Lens I-
(1) Using the lens alone
1. When you are using the lens alone
without the Auto Macro Spacer and
when taking photographs up to l/2
size magnification, set the distance
scale @ to infinity (00). (Photo. q )
2.Press down on the magnification
selector button 0, rotate the magnifi-
cation selector ring locksat the proper
position automatically.
*When aligning the N mark with the
red line, always make sure that you
have set the distance scale to infinity
(00) first. Otherwise you may not be
able to lock the magnification selec-
tor ring at the proper position.
3. Focus through the finder as you do
normally. Digitally signed by mike
butkus4.The image magnification is indi- mike DN:o=orphancameras,cn=mike butkus,ou=29,
catedonthefocusing ring right in front email=mike@butkus.org,c=US
of distance scale. For example, 40 is Date: 2017.12.18 23:50:22 butkus -05'00'
an abbreviation of l/40. (Photo. q )
Donated to www.orphancameras.comView original page 3Page 4 · Read text
(2) Macro photography from l/2 life-size to life-size
magnifkatioii - -
Attach the optional Auto Macro
Spacer between the camera and the
lens. (Refer to the following section for
details on how to attach it.)
1. Set the lens distance scale @ to in-
finity (-). (Photo. m )
2.Press down on the magnification
selector button 0, rotate the magnifi-
cation selector ring 0, and align the
green alignment line at the rear of the
selector button with the S mark
(green). Then the magnification se-
lector ring locks at the proper position
automatically.
*When aligning the alignment line
with the S mark, always make sure
that you have set the distance scale
to infinity (-) first. otherwise you may
not be able to lock the magnification
selector ring at the proper position.
3. Focus through the finder as you do normally.
*Do not use the selector ring to adjust the focus. if you do not notice that the
ring has been rotated while you are pushing down on the selector button, the
position of the S mark which you have already set may be thrown out of align-
ment.
4.The image magnification is indicated at the front end of the magnification
selector ring. Magnification units from 2 life-size to life-size are marked. For
example, 2 is an abbreviation of l/2. (Phot0.m )
Donated to www.orphancameras.comView original page 4Page 6 · Read text
Attaching the Auto Macro Spacer
1. Rotate the aperture ring and set it
to the widest aperture (f/4). (Photo.
0)
2. Grip the knurled ring@of the Macro
Spacer in one hand and rotate the
coupler ring @with the other hand.
Align the red line on the aperture ring
coupler@with thealignment line@ as
shown in the photograph. (Phot0.m )
3. When the macro Spacer and the
lens are fitted after aligning the align-
ment dot @of the lens with the align-
ment dot @ of the macro spacer, the
couplers of the macro Spacer and the
lens will also be see simultaneously.
(The role of this coupler is to interlock
with the exposure meter when the AE
prism finder isemployed, when the AE
prism finder is not employed, connect-
ing the coupler is not necessary.)
4.when the Macro Spacer and the
lens have been aligned and fitted,
rotate the lens clockwise until it stops.
when the lens is rotated up to the stop
position, the lens release button
@I pops out to lock it.
Caution
When rotating the lens, always grip ei-
ther side of the knurled ring @of the
Macro spacer. Should the coupler ring
@also begripped simultaneously, the
lens cannot be rotated. (Photo. m )
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Removing the Macro spacer
1. When removing the lens, initially re-
move the MacroSpacerfrom the cam-
era body combined with the lens. To
remove the Macro Spacer, rotate it
counterclockwise until it stops, while
depressing the release button @ on
the camera body. (Photo. q )
Donated to www.orphancameras.comView original page 7Page 8 · Read text
Close-up Table:when using with Auto Macro Spacer
Lans-to subject Ex osurecom en- Magnification distance Area to be covered sa Fion value ( sptep)
l/2 18.1 cm I 8.3X 1 1.2cm 1 .o
l/l .7 15.7cm 6.9X9.3cm 1 .o
l/1.5 14.1 cm 5.9 X 8.0cm 1.5
1/1.25 12.1 cm 5.2 X 7.0cm 1.5
l/l .l 1 1 .Ocm 4.6X6.2cm 1.5
l/l 10.1 cm 4.2 X 5.6cm 2.0
How to Read the Close-Up Photography Table
1 .The distances shown in the close-up photography table indicate the distance
from the front edge of the lens barrel to the subject.
2.The exposure compensation values are indicated by the numbers corre-
sponding to the steps in the shutter speed or aperture calibrations. When the
lens is extended for close-up photography, and the distance between the lens
and the film plane increases beyond normal, the image brightness on the film
plane decreases, requiring an increase in exposure. When metering with a hand-
held exposure meter, adjust the exposure by referring to the exposure com-
pensation values in the close-up photography table. The exposure compen-
sation is not necessary when using through-the-lens metering with the AE
Prism Finder.
Donated to www.orphancameras.comView original page 8Page 10 · Read text
Special Features Name of Parts -
The Macro C 80mm f/4N lens is de- Lens
signed to provide a high resolving @ Filter mounting ring
power not only in ordinary picture @ Magnification selector button
taking but particularly in close-up @ Magnification selector ring
photograph and copying. @I Distance scale
You can focus up to l/2 life-size with @ Aperture ring
this lens without using an accessory. @ Alignment dot for lens mounting
By applying the optional Auto Macro @ Exposure meter coupler
Spacer which is especially designed
Auto Macro Spacer (option)for this Macro C 80mm f/4N lens,
@ Lens release buttonhowever, you can go up to life-size
@ Knurled ringfrom l/2 life-size magnification. The
Macro Spacer is coupled to the auto- @ Coupler ring
@I Diaphragm actuating levermatic diaphragm mechanism so that
@ Aperture ring coupleryou can take pictures in exactly the
same way as you would with a stan- @ Diaphragm actuating pin
dard lens. @ Alignment red lineforcamera body
This lens contains a built-in floating @ Alignment dot for lens
system which is designed to automati- @ Alignment red lines for coupler
cally compensate for increasing typi-
cal aberrations with close focusing / Specifications /
distances to obtain sharp resolution Focal length : 80mm
down to the edges of the pictures. In Lens construction:6 elements in 4 groups
this floating system, a portion of lens Angle of view : 47”
elements moves back and forth in Aperture range: f/4 to f/22
accordance with the photographing Filter size : 67mm dia. screw-in
distance to obtain the optimum lens Lens hood : Not required
performance. Length : 2-15/l 6 in. (75mm)
Although this lens does not feature a Weight : 20.6 oz. (5859)
hood, it provides a sufficient hood
effect. Nevertheless, if it isabsolutely
necessary to use a hood, you can use
one which is designed for 80mm f/
1.9N lenses (67mm cascrew-in type).
Donated to www.orphancameras.comView original page 10From the M. Butkus archive. Original publisher and archive notices are retained.
Check the model and edition against your equipment.
PDF verified 2026-10-10.