Cambo AC-371 User manual

AC-371 Rear Base Tilt
For Actus-B, -G and DB
INSTRUCTION MANUAL
EN
Please read this manual carefully before using the AC-371!
Version 1.00

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Thank you for purchasing a Cambo product
The AC-371 rear base tilt kit is an additional kit to the Actus-B, Actus-G or
Actus-DB. This kit allows the rear standard to tilt +15º / -15º with fixed
increments of 5º. The AC-371 also extends the telescopic rail system with
42mm extra travel.
Please read this manual carefully before converting your Actus-B, -G or –DB.
Please take all warnings concerning the use of standard Actus systems into
account when using an Actus fit with the AC-371 kit. Note that the AC-371 is
compatible with all three Actus systems so the images displayed in this manual
may differ from the Actus system you own.
1. Removing the Front standard
To remove the front standard [1],
unscrew the four M3 Torx bolts [2]
using the supplied Torx T10 key [3].
Note that the front standard of the
Actus-G and Actus-DB have an extra
16,3mm spacer which is not displayed
in Figure 1. (See fig.2 [1])
Figure 1. Removing the front standard.

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2. Removing the rear standard
Figure 2. Removing the rear standard.
To remove the rear standard [4] from the Actus, simply slide the rear standard
over the front end of the rail.

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3. Reassembling the rear standard
Figure 3. Installing the rear tilt unit.
Start by installing the rear base tilt unit [7] to the Actus rail. Remove the M2x4
[5] from the rear base tilt unit by using the supplied 1,5mm Allen key [6]. Slide
the rear base tilt unit over the rail until the rear base tilt unit reaches the end
stop. Now slide the rear standard [4] over the rear base tilt unit and align the
mounting hole of the rear standard to the threaded hole in the rear base tilt
unit. Fit the earlier removed M2x4 bolt [5] to the rear base tilt unit using the
Allen key [6]. For adjusting the rear base tilt unit see chapter 5.

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4. Reassembling the front standard
Figure 4. Installing the spacers.(Left, Actus-B, Right, Actus-G and Actus-DB)
For the Actus-B place the 21,5mm spacer [8] below the front standard and fix
both to the Actus rail at the same time using the supplied M3x35 ISO14581
Torx screws [9] using the Torx T10 key [3].
For the Actus-G and –DB place the supplied 21,5mm spacer [8] and the original
16,3mm spacer [1] below the front standard and fix all three to the Actus rail
with the supplied M3x55 ISO14581 Torx screws [10] using the Torx T10 Key.

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5. Adjusting the telescopic system
Figure 5. Adjusting the telescopic system.
To avoid play or stalling of the telescopic system after installing the rear base
tilt unit, both sliding parts can be readjusted. To remove play from the system
set screws [11] should be tightened using Allen key [6]. To avoid stalling, loosen
the set screws [11]. Note these adjustments come very close, do not over
tighten the set screws!

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6. Actus with AC-371 added features
Figure 6. AC-371 rear base tilt unit.
Now the AC-371 rear base tilt kit is assembled you have added a 21,5mm
spacer [8] to the front standard to keep the optical axis of the lens board
aligned to the centre of the sensor. The rear base tilt unit [7] allows the rear
standard to tilt to a maximum of +/- 15º with fixed increments of 5º.
Note that you should always support the rear standard when you unlock the
base tilt unit.
The installed rear base tilt unit also allows for an extra 42mm of telescopic
travel [12]. If you will use this extra travel to its maximum extend, for the Actus-
B, the standard AC-210 bellow should be replaced by the AC-214 long bellow.
For the Actus-DB or Actus-G with DB module the ACDB-250 bellow should be
replaced by the ACDB-254 long bellow

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Cambo Fotografische Industrie B.V.
Cambo R&D June 2018
This instruction manual is prepared with care, although no responsibility, financial or otherwise, is accepted for
any consequences related the information stated in this instruction manual. All specifications in this instruction
manual are subject to change without notice.
For more information please visit the Cambo web site: www.cambo.com

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