Questions about the Astrodymium Ring System

No, sorry.

No, the ring system will only work with the Rokinon/Samyang 135mm F/2 lens.

There are no plans to expand the ring system to other lenses.

Any dovetail bar that is flat on top, and has slots for the holes will work with the ring system.


- William Optics DSD 210 Plate
- Astro Essentials Short (18cm) Dovetail
- Askar Vixen-Style Universal Dovetail Plate

The bottom-mounted version needs to be completely re-designed, and will be available for purchase at the earliest in March 2022.

No. The ZWO EAF (12v or 5v) is the only compatible autofocuser that will work with the ring system.

The EAF adapter will also not work with other mounting systems (like the RedCat 51 ring). You must purchase the entire ring system to get autofocus.

It is also not possible to make the EAF adapter add-on work by itself with other lenses.

The EAF adapter does not work by itself, and is not a standalone product. It is only designed to be used in conjunction with the ring system. It is not possible to adapt it to work for other lenses.

Questions about shipping

Non-expedited orders require up to 5 business days to be processed (your order will likely ship earlier). This is necessary in order to take advantage of the United States' significantly cheaper shipping options.

Orders are gathered in a batch throughout the week, and all at once are sent to a Chit Chats facility (logistics company).

Chit Chats drives over the border into the U.S (from Canada), and then sorts the packages to be delivered to the intended countries.

This method reduces international shipping prices by up to 75%.

Note: Natural disasters like floods, poor weather, holidays, and misc events can cause delays. Send me a message and I will let you know the status of your shipment.

Canada: Sales tax is collected at checkout

United States: No tax.

International: Import laws vary significantly between countries. You will have to consult friends/family, and other sources on whether your country collects taxes/duties when importing goods.

Unfortunately I cannot undervalue the cost of orders.

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