APM Fork Mount for Large Binoculars Instruction Manual [EN]

APM Fork Mount

for Large Binoculars

Operation Manual

APM Fork Mount overview

The APM Fork Mount is the result of a long term development, taking attention to the user feedback.

The optimized, smooth manual tracking, combined with almost no vibrations and a high load capacity
are unsurpassed in the market.

Therefore, the APM Fork Mount is the perfect choice for your Giant Binoculars!

Field of use:

• Solid Alt-Azimut Mount, suitable for Astronomy and terrestrial use with our

new APM 100mm & 120mm Giant Binoculars

Key Features:

• Modern designed alt-azimutal Fork mount

• Weight only 10.6 lbs. (4.8 kgs)

• Tripod attachment via 3/8“ photo tripod thread

• Panning area 360°, tilting from Horizon to the Zenith

• Accessory interface w/ 2 holes and 3/8“ screw

• Adjustable friction in Altitude and Azimuth

Tilting up to Zenith

Through the special fork design this mount enables you to tilt up to the zenith. So you can use it for
astronomy and nature / wildlife observing.

Technical details:

The pivot bearing (base) is a solid metal construction. Thus the fork is easily removable. The separate
base will easily thread onto the tripod.

Without the Pivot bearing (base) the fork only weights less than 4.1 kgs.

The distance of the fork-arms is 28 cm inside, and 36 cm outside. This fork mount is suitable for our
100mm and 120mm binoculars, and the larger 28x110 binoculars.

APM Telescopes • Quierschieder Weg 38 • 66280 Sulzbach • Germany

Phone: [phone] • Fax: [phone]

WEB: ww w.apm-telescopes.de • EMail: [e-mail]

Page 1

Setting up the Fork Mount

On the ground of the pivot bearing base there is an 3/8“ thread.

This thread is screwed to the tripod head.

Mount the binoculars on the Fork Mount

In order to mount the
binoculars on the fork mount,
the rail must rst be screwed
onto the binoculars. To do
this, use the two screws as
shown in the lower picture.
Depending on the size and
weight of the binoculars, the
weight balance can be set
variably by moving the
mounting rail on the bottom
side of the binoculars.

APM Telescopes • Quierschieder Weg 38 • 66280 Sulzbach • Germany

Phone: [phone] • Fax: [phone]

WEB: ww w.apm-telescopes.de • EMail: [e-mail]

Page 2

To connect the binoculars to the mount, insert the rail onto the appropriate rail on the fork. Then use the
hand screws to x the binoculars on the fork mount.

Balancing the Binoculars

When changing the eyepiece, there appears an unbalance of the binoculars in the longitudinal axis due
to the dierent weights of the eyepieces. This can be counteracted by gently tightening the twoAltitude
friction screws located on the side of the binoculars.

In the Azimuth axis, the ease of rotation can be adjusted with a hand screw

APM Telescopes • Quierschieder Weg 38 • 66280 Sulzbach • Germany

Phone: [phone] • Fax: [phone]

WEB: ww w.apm-telescopes.de • EMail: [e-mail]

Page 3

Tripod recommendations

Berlebach Uni 19C

Since this tripod cannot be extended very high, it is
ideal for those who want to watch while sitting or
who want to observe nature.

For someone who likes wooden tripods, this is a
good choice. However, it also has its drawbacks.
The clamping for the individual legs can only be
adjusted at the top of the connector. We
recommend purchasing the optional triangular
plate for secure bracing.

Manfrotto 161 MK2B

The Manfrotto aluminum tripod can be extended
very high and is ideal for those who want to
observe while standing.

With its triangular bracing between the legs, it
oers maximum stability.

APM Telescopes • Quierschieder Weg 38 • 66280 Sulzbach • Germany

Phone: [phone] • Fax: [phone]

WEB: ww w.apm-telescopes.de • EMail: [e-mail]

Page 4