OPTEC Hercules 76 Low-Profile Focusing Rotator

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- Combines precision focusing and camera rotation in one compact unit
- Full 3-inch clear aperture with only sub-2-inch body thickness
- Native Ethernet, USB-C, and hand controller connectivity
- Supports de-rotation, framing, and automated imaging control
OPTEC Hercules Focusing Camera Rotator
The Optec Hercules is a compact, low-profile combination focuser and rotator built to deliver premium performance without adding unnecessary bulk to your imaging train. Designed with a full 3-inch clear aperture, 0.35 in (9 mm) of focusing travel, and an overall thickness under 2 inches, Hercules is ideal for space-conscious setups that still demand precision control. Integrated electronics with native Ethernet, USB-C, and hand controller connectivity eliminate the need for an external control box, while Optec’s industry-leading ASCOM and Alpaca drivers provide advanced features such as alt-az de-rotation, image orientation, and smooth guide-star acquisition. With the reliable focus accuracy Optec is known for, Hercules is a powerful all-in-one upgrade for serious imagers.
Specifications:
Physical:
- Clear Aperture: 76.2 mm
- Height: 8.17 in (208 mm)
- Width: 7.48 in (190 mm)
- Thickness: 1.81 to 2.16 in (46.0 to 54.9 mm)
- at midpoint: 1.99 in (50.5 mm)
- Weight: 3-lb. 8 oz. (1.6 kg)
Interface:
- Telescope side: OPTEC-3600 receiver
- Camera side: OPTEC-3000 3-inch receiver
Focuser:
- Total Travel: 0.350 in (8.89 mm)
- Total Steps: 112,000 steps
- Resolution: 0.079 micron/step
- Motor: Lin Engineering Hybrid Stepper
- 3709 Series
Rotator:
- Total Steps: 168,000 steps
- Resolution: 7.7 arc seconds / step
- Rotation Speed: variable, ~ 3 degrees/second
- Motor: Lin Engineering Hybrid Stepper
- 211 Series, NEMA 11
Electronics:
- Circuit board: Internal
- Communications: USB-C and Ethernet
- Additional: Temperature Probe 3.5 mm socket
- 2.1 x 5.5mm power socket
- Power LED indicator
Power:
- Power draw: 1.25A max, 0.6A while moving, 0.4A holding
- Input voltage: 12VDC
- Input connector: 2.5x5.5mm barrel plug, center pin positive
Software:
- Compatibility: ASCOM and Alpaca
- Capabilities: Focus, Guide star acquisition, field composition, Alt-Az De-rotation
- De-Rotation: Compatible with Planewave L-mounts, TheSky X, Maxim D/L, N.I.N.A.
- Any fully configured mount with ASCOM driver.
Other Information
- Country of Manufacture: United States
OPTEC Hercules Focusing Camera Rotator
The Optec Hercules is a compact, low-profile combination focuser and rotator built to deliver premium performance without adding unnecessary bulk to your imaging train. Designed with a full 3-inch clear aperture, 0.35 in (9 mm) of focusing travel, and an overall thickness under 2 inches, Hercules is ideal for space-conscious setups that still demand precision control. Integrated electronics with native Ethernet, USB-C, and hand controller connectivity eliminate the need for an external control box, while Optec’s industry-leading ASCOM and Alpaca drivers provide advanced features such as alt-az de-rotation, image orientation, and smooth guide-star acquisition. With the reliable focus accuracy Optec is known for, Hercules is a powerful all-in-one upgrade for serious imagers.
Specifications:
Physical:
- Clear Aperture: 76.2 mm
- Height: 8.17 in (208 mm)
- Width: 7.48 in (190 mm)
- Thickness: 1.81 to 2.16 in (46.0 to 54.9 mm)
- at midpoint: 1.99 in (50.5 mm)
- Weight: 3-lb. 8 oz. (1.6 kg)
Interface:
- Telescope side: OPTEC-3600 receiver
- Camera side: OPTEC-3000 3-inch receiver
Focuser:
- Total Travel: 0.350 in (8.89 mm)
- Total Steps: 112,000 steps
- Resolution: 0.079 micron/step
- Motor: Lin Engineering Hybrid Stepper
- 3709 Series
Rotator:
- Total Steps: 168,000 steps
- Resolution: 7.7 arc seconds / step
- Rotation Speed: variable, ~ 3 degrees/second
- Motor: Lin Engineering Hybrid Stepper
- 211 Series, NEMA 11
Electronics:
- Circuit board: Internal
- Communications: USB-C and Ethernet
- Additional: Temperature Probe 3.5 mm socket
- 2.1 x 5.5mm power socket
- Power LED indicator
Power:
- Power draw: 1.25A max, 0.6A while moving, 0.4A holding
- Input voltage: 12VDC
- Input connector: 2.5x5.5mm barrel plug, center pin positive
Software:
- Compatibility: ASCOM and Alpaca
- Capabilities: Focus, Guide star acquisition, field composition, Alt-Az De-rotation
- De-Rotation: Compatible with Planewave L-mounts, TheSky X, Maxim D/L, N.I.N.A.
- Any fully configured mount with ASCOM driver.
- 1x Hercules focusing rotator
- 1x 3.5mm phono style temperature probe
- 1x 12-volt DC switching power supply w/ wall cord
- 1x Cat-6 Ethernet cable, 7-ft. length
- 1x USB-C cable, 6-ft. length
- 1x 5/64" T-handle hex driver
- Combines precision focusing and camera rotation in one compact unit
- Full 3-inch clear aperture with only sub-2-inch body thickness
- Native Ethernet, USB-C, and hand controller connectivity
- Supports de-rotation, framing, and automated imaging control
OPTEC Hercules Focusing Camera Rotator
The Optec Hercules is a compact, low-profile combination focuser and rotator built to deliver premium performance without adding unnecessary bulk to your imaging train. Designed with a full 3-inch clear aperture, 0.35 in (9 mm) of focusing travel, and an overall thickness under 2 inches, Hercules is ideal for space-conscious setups that still demand precision control. Integrated electronics with native Ethernet, USB-C, and hand controller connectivity eliminate the need for an external control box, while Optec’s industry-leading ASCOM and Alpaca drivers provide advanced features such as alt-az de-rotation, image orientation, and smooth guide-star acquisition. With the reliable focus accuracy Optec is known for, Hercules is a powerful all-in-one upgrade for serious imagers.
Specifications:
Physical:
- Clear Aperture: 76.2 mm
- Height: 8.17 in (208 mm)
- Width: 7.48 in (190 mm)
- Thickness: 1.81 to 2.16 in (46.0 to 54.9 mm)
- at midpoint: 1.99 in (50.5 mm)
- Weight: 3-lb. 8 oz. (1.6 kg)
Interface:
- Telescope side: OPTEC-3600 receiver
- Camera side: OPTEC-3000 3-inch receiver
Focuser:
- Total Travel: 0.350 in (8.89 mm)
- Total Steps: 112,000 steps
- Resolution: 0.079 micron/step
- Motor: Lin Engineering Hybrid Stepper
- 3709 Series
Rotator:
- Total Steps: 168,000 steps
- Resolution: 7.7 arc seconds / step
- Rotation Speed: variable, ~ 3 degrees/second
- Motor: Lin Engineering Hybrid Stepper
- 211 Series, NEMA 11
Electronics:
- Circuit board: Internal
- Communications: USB-C and Ethernet
- Additional: Temperature Probe 3.5 mm socket
- 2.1 x 5.5mm power socket
- Power LED indicator
Power:
- Power draw: 1.25A max, 0.6A while moving, 0.4A holding
- Input voltage: 12VDC
- Input connector: 2.5x5.5mm barrel plug, center pin positive
Software:
- Compatibility: ASCOM and Alpaca
- Capabilities: Focus, Guide star acquisition, field composition, Alt-Az De-rotation
- De-Rotation: Compatible with Planewave L-mounts, TheSky X, Maxim D/L, N.I.N.A.
- Any fully configured mount with ASCOM driver.
Other Information
- Country of Manufacture: United States
- 1x Hercules focusing rotator
- 1x 3.5mm phono style temperature probe
- 1x 12-volt DC switching power supply w/ wall cord
- 1x Cat-6 Ethernet cable, 7-ft. length
- 1x USB-C cable, 6-ft. length
- 1x 5/64" T-handle hex driver

OPTEC Hercules 76 Low-Profile Focusing Rotator
