Camera accessories
Mamiya 645AF NC401 Auto Bellows User manual
User manual for Mamiya 645AF NC401 Auto Bellows. 17 pages in English. Read the original PDF, download or print a copy without registration.
17 pagesEnglish1.5 MB PDF
Loading your manual…Open PDF directly
Document details
- Brand
- Mamiya
- Model / document
- Mamiya 645AF NC401 Auto Bellows
- Document type
- User manual
- Language
- English
- Pages
- 17
- File size
- 1.5 MB
- Category
- Camera accessories
- Document date
- Not specified in catalog
Search available document text
Find a term, then jump to its page in the original PDF. Image-only pages may not be searchable; check the PDF for exact wording and diagrams.
Page 4 · Read text
www.butkus.us
Thank you for purchasing the Mamiya Auto Bellows NC401
The NC401 Auto Bellows for the Mamiya 645 AF is a precision tool that is mounted
between the camera and lens to provide the ability for macro photography. When the
included lens reversal ring is used for magnification ratios higher than 1:1, you may
record photographs with low aberration.
To ensure proper operation and a long life of service, please read this manual carefully
before use of this product. After reading the manual, please store it in a readily acces-
sible place.
For safe, proper use
prevent injuries. ' Be sure to read the "safety Precautions" carefully before use to
' The symbols and their meanings are described below for your reference:
AcnunoN '. toThispersonalindicatesinjuryinstructionsor damagewhichto yourif notequipmentheeded couldor materi-lead
als.
The instructions following the above symbol include important information on safety.
Please regard the Safety Precautions for the safety of you and your equipment.
AcnunoN
Use a tripod that provides sufficient strength for the camera and lens.
Also, do not transport the camera while mounted on a tripod. Doing so
could damage the camera or cause personal injury.
I when the auto bellows is mounted on the camera, do not lift the camera
holding only the lens or viewfinder. By holding the camera or auto bellowi incorrectly, you risk damage to the camera. Always hold the camera's
body and the auto bellows' rails simultaneously.
Z,K 8o(Av^ f $.o,*.Or,e W
rv,ua I G7 reeaView original page 4Page 6 · Read text
www.butkus.usFunctions of parts
Afways support the body or auto bellows with your hands when per-
forming these operations.
Mounting on a tripod
Position the Auto Bellows' mounting block over the tripod head, align the tripod screw
with the female threads on the mounting block and tighten the screw securely.
Disconnecting the connectors
Always disconnect the connectors before de-
taching the camera or the lens.
*Before making any exposures, make sure
the lens and camera connectors are
securely connected to one another.
--.*tView original page 6Page 7 · Read text
Mounting the camera
1. Loosen the camera mounting ring lock knob
@ tulty until it stops, line up the mark G) on the
camera mount ring with the mark @ on the auto
bellows, and then remove the camera mount-
ing ring from the auto bellows.
www.butkus.us
2. Line up the mark @ on the camera mount
ring with the camera's lens mount mark O, in-
sert the ring, then turn the ring clockwise until
it stops. The camera mount ring is properly
mounted to the camera when a click is heard.
3. Line up the mark G) on the auto bellows with
the mark (D on the ring mounted on the cam-
era, and insert into the camera mount in the
auto bellows. Select the horizontal or vertical
position and fasten in place using the camera
mounting ring lock knob G).
5View original page 7Page 8 · Read text
www.butkus.us
Detaching the camera
1. Loosen the camera mounting ring lock knob
@, line up the mark @ on the camera mount-
ing ring with the mark O on the auto bellows.
then remove the camera from the auto bellows.
2. Slide and hold the lens release button O to-
wards the rear of the camera, then turn the
camera mount ring counter-clockwise and re-
move it from the bodv.
Horizontal position Vertical positionView original page 8Page 9 · Read text
Mounting the lens
1. Loosen the lens mounting ring lock knob @
fully until it stops, line up the mark @ on the
lens mounting ring with the mark O on the auto
bellows, then remove the lens mounting ring
from the auto bellows.
2. Line up the mark O on the lens mounting
ring with the lens'mount mark G), insert the
lens into the lens mounting ring, and turn the
lens clockwise until it stops.
www.butkus.us
3. Line up the mark G) on the auto bellows with
the mark @ on the ring mounted on the lens,
and insert into the auto bellows. Line uo the
mark (D on the lens mounting ring with the mark
O on the auto bellows, and lock in place using
the lens mounting ring lock knob O.View original page 9Page 10 · Read text
www.butkus.us
Detaching the lens
1. Lens mounting ring lock knob @ fully until it
stops, line up the mark @ on the lens mount-
ing ring with the mark O on the auto bellows,
then remove the lens mounting ring.
2. While pressing the lenq detach button @, turn
the lens mounting ring counter-clockwise and
remove it.
F-*
H
il;'i
st
r{
h'{ryi:
4
t
]
nl
tls
H
n
F4
H
flView original page 10Page 11 · Read text
Operating the auto bellows'rails
When focusing, it is possible to move the entire auto bellows forward and backward on
the rails instead of moving the tripod's position.
When shooting wide objects
When the upper and lower rails are positioned
at right angles, the entire auto bellows can be
moved in a parallel action to the left and right
while maintaining a perpendicular position to
the subject. For example: Use this to take two
equal magnification photographs of long objects
that do not fit on a single photograph.
1. Fully loosen the upper/lower rail mount lock
knob @ and pullthe upper rail G) towards you
to detach it.
www.butkus.us
2.Turn the upper rail@ on the lower rail@ until
they are perpendicular and then tighten the up-
per/lower rail mount lock knob.
* There are two rail mount positions,'as
seen at left.View original page 11Page 12 · Read text
www.butkus.usphotographs Taking
Focusing
1. Turn the focus mode selector lever on the
645 AF body and select "M" (manual focus
mode).
Turn the lens'distance ring and set it to "oo".
2. Turn the front standard fine focus knob @,
move the front standard forward along the rails,
to the proper foous/magnification and lock it in
place with the front standard focus lock knob
@.
* First determine the shooting
magnification, the shooting range or the
distance to the object, then use the close-
up photography tables (page 13) to
determine the lens extension distance.
3. Use the rail positioning knob @ to move the entire camera fonruard or backward and
adjust the focus.
* Loosen the respective lock knobs before operating the camera, lens or rail
extension knob. Once the motion has been performed, be sure to re-tighten the
lock knob.
*Note about focus: When the distance from the film back to the subject changes,
the magnification and perspective changes. All fine focusing should be
performed with the front standard fine focus knob.
Using the camera's "mirror up" function prevents camera vibration
during long exposures and/or macro photography.
(Refer to the section on taking photos with the mirror up in the 645 AF (body)
owner's manual.)View original page 12Page 13 · Read text
Setting the exposure
1. In the AE (Autoexposure) mode.
Set the exposure mode setting dial on the body to aperture priority AE ("Av') mode.
Half-press the shutter release button and look into the viewfinder's at its LCD display for
an exposure reading. lf the "-u-" and "-o-" indicators are flashing, you are outside the the
. camera's exposure metering range and it is not possible to achieve a proper exposure
reading. Try a wider aperture and/or more intense lighting.
* ruOfe: The "P" (Program AE) and "Tv" (Shutter Priority AE) modes are not
available using the auto bellows.
2. In the M (Manual) mode.
Set the aperture and shutter speed as desired, then half-press the shutter release but-
ton. The difference between the set value and the measured value is displayed in the
viewfinder's LCD panel.
* Set the lens' aperture to between Fl1 and F22. lt the aperture is too wide, the
depth of field will be extremely shallow.
11View original page 13Page 14 · Read text
Reversedwww.butkus.uslens photography
At magnifications greater than 1.0, mount the lens in the reverse direction using the
included lens reversal ring to achieve photographs with increased performance.
Mounting the lens reversal ring
1. Screw the lens reversal ring into the f ilter threads
on the front of the BOmm f/2.8 AF lens.
2. lnstall the lens mounting ring on the rear of the
lens.
3. Line up the notch @ on the lens reversal ring
with the pin @ on the auto bellows and lock it in
place using the lock knob @.
4. Focus and metering are performed in the same
way as described on pages 10 and 1 1 for normal
orientation of the lens.
* lt ttre distance scale is hard to see, loosen
the lock knob O, move the cord so that it does
not hamper your view, and turn to a position
at which the distance scale is easy to see.
Lock the lock knob @ when finished.
12View original page 14Page 16 · Read text
Handlingwww.butkus.usprecautions . Do not let the bellows get wet or accidentally crushed. Doing so may deform the bellows permanently. . Do not attempt to disassemble the auto bellows or modify them in any way. lf you need assistance with this accessory, please contact thb nearest Mamiya service center. . Oil, dust, fingerprints or water on the electronic contacts could result in mal- function or corrosion. Wipe such substances off with a clean lens cloth. . Do not expose the auto bellows to chemicals or gases for long periods of time. Doing so will damage the surfaces and materials. . Do not use solvents. Exposure to such will damage the surfaces of the auto bellows. To clean, wipe gently with a soft, dry cloth. . When the camera has not been used for a long period of time or before taking important photographs, either take a trial photograph to check that the camera is functioning normally or contact your nearest Mamiya office or service center for an inspection. C.View original page 16
From the M. Butkus archive. Original publisher and archive notices are retained.
Check the model and edition against your equipment.
PDF verified 2026-10-10.