Player One FHD-OAG MAX Off-Axis Guider

Designed for deep-sky astrophotography guiding, the Player One FHD-OAG MAX uses a prism to divert part of the telescope's light path towards a guide camera.

This latest version incorporates several improvements based on user feedback. Player One has reduced the size of the focuser housing, redesigned the internal structure to minimise light leakage and improved the smoothness of the focusing mechanism.

The FHD-OAG MAX supports Player One Poseidon, Zeus and Artemis series cameras.

Slimmer Design

One of the main improvements concerns the guide-camera focuser. Its maximum outer diameter has been reduced from 53 mm to 46 mm.

This slimmer profile provides additional clearance around the off-axis guider and makes installation easier in imaging trains where several accessories are positioned close together.

Improved Light-Leak Prevention

The internal structure has also been redesigned to minimise unwanted light leakage.

This is particularly important for off-axis guiding, as stray light reaching the guide camera can interfere with guide-star detection.

1.25-Inch Helical Focuser

The guide camera is installed in a 1.25-inch helical focuser for precise focusing.

On this new version, Player One has reduced the rotational resistance of the mechanism to provide smoother and easier adjustment.

8 × 14 mm Prism

The FHD-OAG MAX uses an 8 × 14 mm prism with proportions close to a 16:9 format.

With a height of only 8 mm, the prism can be positioned closer to the centre of the optical path, allowing it to receive more light.

Player One states that this design provides a no-vignetting result with the Xena-M guide camera.

Player One Guide-Camera Compatibility

Player One illustrates the available field with several sensor formats: the Ceres-M with Sony IMX462 1/3-inch sensor, the Sedna-M with Sony IMX178 1/2-inch sensor and the Xena-M with Sony IMX174 or IMX249 1/1.2-inch sensor.

Prism Adjustment

• The prism position can be adjusted according to the imaging configuration.
• A dedicated locking screw then secures the prism in the selected position.

Telescope-Side Connections

• The modular design of the FHD-OAG MAX supports several telescope-side connections.
• M42 : M48 front piece combined with the supplied M48 male to M42 female adapter
• M48 : supplied M48 front piece
• M54 : supplied M54 front piece
• M68 : optional M68 front piece

Player One Accessory Compatibility

• Player One's connection diagram shows direct compatibility with the Filter Drawer MAX as well as the Phoenix Wheel 7 × 36 mm, Phoenix Wheel 5 × 2 inch and Phoenix Wheel 7 × 2 inch filter wheels.

Construction

• The off-axis guider body is manufactured from 6061-T6 aluminium. Its extension length is 17.5 mm and the main body has an outer diameter of 80 mm.

Technical Specifications

• Manufacturer : Player One Astronomy
• Model : FHD-OAG MAX
• Type : Off-axis guider
• Supported models : Poseidon series, Zeus series, Artemis series
• Material : Aluminum 6061-T6
• Extension length : 17.5 mm
• Focuser : 1.25-inch helical focuser
• Maximum focuser outer diameter : 46 mm
• Previous version focuser diameter : 53 mm
• Prism size : 8 × 14 mm
• Prism height : 8 mm
• Main body outer diameter : 80 mm
• M42 connection : via M48 male to M42 female adapter
• M48 connection : M48 front piece
• M54 connection : M54 front piece
• M68 connection : optional M68 front piece
• M48 thread : M48 × 0.75
• M54 thread : M54 × 0.75
• M68 thread : M68 × 1

Package Contents

• FHD-OAG MAX with M48 front piece
• M54 front piece
• M48 male to M42 female adapter, 0 mm optical length
• Bag of thumb screws
• Bag of M2.5 screws
• Screwdriver