• 72mm aperture
• 400mm focal lengrth
• Quintuplet air-spaced APO design
• Supports full frame
• No need for flattener
• 0.7x reducer (optional)
• No need to calculate backfocus
• Retractable lens hood
• 150mm dovetail plate
• Multi-functional handle
• 3" rack-and-pinion focuser
• 1:10 fine adjustment
• Various adapters included

ZWO EAF Pro - The Next-Generation Electronic Automatic Focuser

• Upgraded Universal Type-C Interface for faster, more stable connections
• Micron-Level Precision Focusing for ultra-sharp, consistent focus across all your shots
• 5 kg (11.02 lbs) High Load Capacity to support larger, heavier setups
• Built-In Focus Adjustment Knob for manual fine-tuning when needed
• Bluetooth Connectivity for seamless wireless control from your mobile device
• Built-in Battery Power Supply for reliable, independent operation without external power sources

• Unique design, center-balanced equatorial mount (CEM) for maximum payload and minimum mount weight
• Ideal for both visual observation and astrophotography
• Low periodic error (< ± 10 arc seconds)
• Payload of 12 kg (26 lbs) with the mount-only weight of 4.5 kg (10 lbs)
• CNC machined and cast metal body
• Spring loaded gear system
• Large easy to use quick-lock gear clutches
• 0º latitude operation with optional adapter
• Stepper motor with low power consumption
• iOptron AccuAlignTM calibrated polar scope
• Polar alignment routine for those who can’t see the Pole Star
• Go2Nova® 8409 controller with Advanced GOTONOVA® GOTO Technology
• Integrated ST-4 autoguiding port
• Built-in Wi-Fi
• USB port for firmware upgrade and computer control
• LiteRoc heavy-duty stainless steel tripod (7.5kg)
• Die-cast metal tripod spreader with accessory tray
• Optional 32-channel Global Positioning System (GPS)
• Optional hard carrying case
• Optional iGuiderTM autoguiding system #3360

• Enhanced Nebula Imaging: Captures emission nebulae even in light-polluted areas
• Optimized for Color Cameras: Delivers Hubble Palette-style images without extra filters
• Superior Performance: High transmission and reduced star halos for clearer, sharper results

• It is workable to shoot galaxies, reflection nebulae and star clusters
• Refined coating process makes the Triband RGB Ultra filters with excellent halo suppression and improved signal-to-noise performance
• It has been specifically designed for balanced color transmission using Antlia's experience in spectrum design
• The balanced transmission allows the minimal color cast to broadband emission objects such as stars, galaxies, and globular clusters.
• The Triband RGB Ultra can be used with nearly all systems as fast as f/2 with minimal loss of efficiency or shifts in spectral response
• When shooting LRGB with mono cameras, unless you are wanting to image LDN (dark nebulae) the Triband RGB Ultra can be used as a luminance filter replacement for objects such as nebulae and galaxies to improve contrast and signal to noise ratio
• The Triband RGB Ultra is able to better isolate the H-alpha, O3 and blue spectrum from the background light pollution
• For visual use, Triband RGB Ultra filter ensures the high transmittance of the HSO emission line and can be used for observing deep-sky objects with large-diameter telescopes.
• The filter provides excellent flexibility and compatibility with both OSC and Mono camera systems
• It facilitates the imaging of most astronomical objects using all optical configurations down to f/2 focal ratio

• Anti-Light Pollution: The Antlia Quad Band filter is an effective solution for reducing light pollution, as it cuts out most of the orange-yellow lights from 589nm and part of blue lights from LEDs
• Possible to shoot over 95% of deep sky objects
• Unique spectral design offers more possibilities for astrophotography
• High transmittance of the main emission lines Ha/SII/OIII/H-Beta in the visible region, enhances the astrophotography's high SNR and contrast;
• Near-infrared (NIR) region transmittance
• Passing near infrared region is for shooting deep sky objects that cannot be shot with other filters without NIR transmission
• The broad bandpass designed to cope with faster optics up to the f/2 focal ratio.
• Good color balance
• It is easier to achieve color balance by adding the short-wavelength transmission
• Superior optical reliability reduces post image processing
• Basic Substrate: Optical, Single / Non-glued substrate
• Surface Quality: S/D (scratch/dig)= 60/40 (Refer to MIL-O-13830)
• Transmitted Wavefront: Lambda/4 or better.
• Parallelism: less than 30 arcsec
• Warranty: 3-years against delamination

• Lens Diameter: 30 mm
• Focal Length: 120 mm
• Weight (include guider ring and dovetail): 250 g
• Back Focus: adjustable,（0~20 mm）
• Focuser Type: front part focuser
• Tube travel: 20 mm
• Dovetail includes 1/4″ screw hole.

• An incredibly simple and intuitive astrophography computer
• Control your mount, camera, and more wirelessly
• Automatically stack and process images for extraordinary deep sky or planetary images

This product is discontinued, please see the 256G version as the official replacement.