New from ZWO

The ZWO New EFW-EOS II adapter has been designed as a short EOS adapter for EFW & Cooled camera(6.5mm backfocus version).

Extend distance: 17.5mm

So you can use Canon Lens with ASI1600 and EFW

ZWO Counterweight Bar is designed for when using more than 13kg on the AM5 mount.

Machined from 304 Stainless Steel 230mm in length, 20mm in diameter with an M12 1.75 thread. It will match many other mounts.

SKU: ZWO-BC230

ZWO EAF Pro – The Next Evolution in Electronic Focusing

ZWO’s best-selling Electronic Automatic Focuser (EAF) just got even better. The new ZWO EAF Pro builds on the rock-solid performance of the original by adding Bluetooth wireless control, a built-in rechargeable battery, and onboard manual focus buttons—all in the same compact form factor. It’s the perfect upgrade for astrophotographers looking to cut down cable clutter and gain more control at the scope.

What’s New in the EAF Pro:

• Go Wireless: Integrated Bluetooth and a 2500 mAh battery let you focus remotely without a tangle of cables.

• Streamlined Upgrades: Shares the same mounting footprint as the standard EAF (5V bracket compatible), so switching over is simple.

• Manual Control Onboard: New physical Focus In/Out buttons allow fast and precise adjustments at the scope—no need to reach for your phone or controller.

Tech Specs:

• Connectivity: Bluetooth, USB-C, 3.5mm port for hand controller or temperature sensor

• Battery: 2500 mAh rechargeable

• Supported Platforms: ASIAIR, ASCOM, INDI

• Hardware Controls: Power switch, Focus In/Out buttons

• Payload Capacity: Up to 5 kg

• Status Indicator: Integrated LED

Whether you're fine-tuning critical focus for deep sky imaging or just want fewer cables in the dark, the EAF Pro is a smart, streamlined upgrade for any astrophotography rig.

The filter adapter ring that allows you to use the filter with a smaller filter thread size.

No need for buying another set of filter drawers, the 2”-1.25”filter adapter ring will help you directly fit the 1.25”filter onto 2” filter drawer or filter wheel.

Supported list:

ZWO 5×2”EFW

ZWO 7×2” EFW

ZWO filter drawer series, including M42 filter drawer and M54 filter drawer

Compatible with all ASI cameras and all C and CS lenses

Back focus of C lenses is 17.5mm

Back focus of CS lenses is 12.5mm

Black anodised finish, aluminium construction

Name: ZWO T2 -T2 extension 11mm

Thread: M42*0.75 female to female thread

Match Model: ASI1600mm, ASI1600mc, ASI1600mm-c, ASI1600mc-c

also suits most ZWo Cooled -Pro Cameras

Size: M42*0.75

SKU: ZWO-T2-T2-11

The ZWO new Nikon-T2-Ⅱ adapter is independently developed by ZWO. It’s composed of a 29mm new Nikon-T2 adapter and a 5mm T2 extender, and suitable for all ASI cameras except full frame cameras like ASI6200 and ASI2400.

You can use 2″ IR-CUT filter with the adapter.

Connection method:

1. With ASI cooled cameras (ASI533/183/294/1600/071/2600)

2. With ASI non-cooled cameras

• ASI1600/294/183/174 (17.5mm back focus length)

• ASI178/385/462/290/224/120 (12.5mm back focus length)

What’s in the box?

ZWO USB3.0 2M Cable

Cable Length: 2 meters

USB Connector Type: Type-B 3.0(male) to Type A(male)

A set of Replacement ZWO Fan for cooled cameras

ZWO Filter Masks 7x36mm are used for fitting unmounted filters to ZWO filter wheels.

Please use the M2 screws and masks to fix the filters:

⚫ Remove the screws securing the back cover and remove the back cover

⚫ Place filters onto the filter positions.

⚫ Use the included M2 screws with masks to secure the filters in place.

⚫ Replace the back cover and tighten the screws.

Drawing of 36mm Masks

ZWO T2-1.25 Inch Holder has M42 *0.75 (T-Thread) on each end,

Can be used to hold any 1.25" Accessory,.

Has Brass Compression Ring

Thumbscrews included

SKU: ZWO T2-1.25M

ASIAIR PRO is a smart WiFi device that allows you to control Mainstream DSLR cameras.

But some DSLR cameras have a 30-second exposure limit, which requires an external shutter release cable to ASIAIR PRO.

ZWO Shutter Release Cable is of the soft, curled type that can extend the usable length.

N3 (MC-DC2, 8PIN)
D90/ D3200/ D3300/ D5000/ D5100/ D7000 Cable

Length: 1 meter

Standard 1.25″ T-adapter fits on any telescope that uses a 1.25″ eyepiece focuser for prime focus photography.

The standard 1.25″ T-adapter fits on any telescope that uses a 1.25″ eyepiece focuser for prime-focus photography. The T-mount is manufactured from durable metal aluminum alloy.

Continuing with adapters that allow you to use your existing camera lenses with ZWO cameras, comes this EOS lens adapter that is specially designed to connect EOS lens with ZWO 2” EFW.

Get the benefit of the wide angled lenses from your EOS camera and LRGB filters and even Narrowband filters. A whole new world of imaging opens up to you.

The thread of the interface is M54*0.75, so it is not suitable for 1.25”/31mm/36mm EFW.

Note: The sensor tilt adapter needs to be removed before you mount the camera with the 2” EFW.

New ZWO 2″ filter drawer featuring the anti-light-leaking design that can effectively solve the light leaking issue under long exposure.

NEW: Double strong magnets adopted for stronger adsorption, easier installation and filter removal.

Lock screw on the side for you to adjust the tension of the holder to eliminate gap. It's a way to make sure the filter is positioned correctly. 

M54 filter drawer

• Diameter 70mm * Thickness 20mm
• M54 * 0.75 male (external) thread (camera side)
• M48 * 0.75 female (internal) thread (filter end)
• M54 * 0.75 female (internal) thread (telescope side)
• Suitable for 2-inch astronomical filters and full frame cameras, such as ASI2600MC Duo, ASI6200 and ASI2400 series.

M68 sensor tilt adapter (5mm) is independently developed by ZWO and specially made to match with the full-frame cooled camera ZWO ASI6200MM/MC Pro.

You are encouraged to use it with ZWO 2inch EFW and ZWO M68 OAG and mount them on the M68-thread telescope side.

SKU: ZWO-M68-Adapter

The M48-M42 adapter is used in order to fit your imaging train together with different types of equipment and sizes.

The M48 sensor tilt plate is independently developed by ZWO and specially made to match telescope with M48 thread.

The thickness is 5mm. It has several screw holes on the surface so that you can easily connect it to the M68 OAG and APS-C & full frame camera like ASI2600/ASI6200/ASI2400.

MechanicalDrawing

SKU: ZWO-M48 Plate

ZWO D70-M54F Adapter may be required when fitting the ZWO OAG-L to a 36mm, 31mm /1.25" filter wheel

ZWO M54 Sensor Tilt Plate

Product: ZWO M54 sensor tilt plate adapter

Thickness: 5mm

Suitable for APS-C and full-frame cameras (ASI2600, ASI6200, and ASI2400)

You can connect it to M68 OAG and 2” EFW, and mount them on the M48-thread telescope side with an M54-M48 adapter.

*This adapter is packaged with the full-frame camera. So if you already have one ASI full camera then you don’t need to buy it separately.

SKU: ZWO-M54-Plate

This ZWO adaptor helps you set your camera back spacing correctly for sharp astro images. 

It features a 21m spacer size, with 54mm fitting on the telescope side and 48mm for the camera.

Setting the right back spacing will help your astro imaging rig get the best from your telescope optics.

The M54-M48-2 adapter is mainly used for connecting to the 2”EFW and M54 filter drawer.

The thickness of this adapter is 2mm.

ZWO Lens 2.1 mm 150 degree lens

Technical Parameter:

Format support: 1/3″ sensor

Focal length: 2.1mm

Wide angle: 150 degree

Match Model：ASI120mm, ASI120mc, ASI120mm-s, ASI120mc-s, ASI224mc, ASI290mm, ASI290mc

ZWO M42 Sensor Tilt Plate

Product: ZWOadapter

Thickness: 5mm

Suitable for APS-C and full-frame cameras (ASI2600, ASI6200, and ASI2400)

You can connect it to M68 OAG and 2” EFW, and mount them on the M42-thread telescope side with M54-M42 adapter.

*This adapter is packaged with the full-frame camera. So if you already have one ASI full camera then you don’t need to buy it separately.

SKU: ZWO-M42-Plate

New from ZWO. The ZWO SONY NEX adapter can be used to connect Sony NEX lens and ASI cameras with small sensor formats, such as ASI1600, ASI294, ASI183, ASI174, ASI432 and ASI585.

Only support manual lenses supported, not compatible with automatic lenses.

Suits cooled and uncooled ZWO cameras.

Connecting ZWO SONY NEX to your ZWO Uncooled Camera

Connecting ZWO SONY NEX to your ZWO Cooled Camera

ZWO SONY NEX Schematic Drawing

SKU: ZWO-SONY-NEX

The ZWO CAA-M42 Adapter Plate is a replacement front plate designed for the ZWO Camera Angle Adjuster (CAA). This version swaps the standard M54 thread for a precise M42 interface, allowing you to integrate the CAA into imaging trains that require an M42 connection.

Machined to ZWO’s high standards, the adapter ensures a secure, rigid fit and maintains the correct optical spacing when used with the CAA. It’s ideal for setups using smaller sensor cameras or accessories that rely on the M42 (T-thread) format.

Steps to Replace the CAA Adapter (M54 to M42)

1. Use the included wrench to remove the M54 adapter from the CAA body.
2. Attach the M42 adapter to the CAA.
3. Tighten the screws to complete the replacement.

ZWO 8x31mm Filter Mask are used for fitting unmounted filters to ZWO filter wheels.

Please use the M2 screws and masks to fix the filters:

⚫ Remove the screws securing the back cover and remove the back cover

⚫ Place filters onto the filter positions.

⚫ Use the included M2 screws with masks to secure the filters in place.

⚫ Replace the back cover and tighten the screws.

Drawing of 31 mm Mask

ZWO has released a brand-new FF65APO 0.75× full frame reducer with a four-element optical design. It has a reduction factor of 0.75x, which gives the FF65APO f/6.4 astrograph a shortened focal ratio of f/4.8 and a shorter focal length of 312mm. This allows for less total integration time and a wider field of view, bringing more convenience and possibilities for your wide-field deep sky imaging. The back focus distance is the standard 55mm. It also comes with two thread adapters of M54 and M48, and a built-in M48x0.75 2” filter thread, which makes the connection work simple and convenient.

Connection steps:

1. Prepare the FF65APO telescope tube and the focal reducer.
2. Unscrew the eyepiece holder at the end of the FF65APO telescope tube.
3. Unscrew the end cap of the 0.75X reducer.
4. Insert the reducer into the focuser and tighten.