Product Description
The Short EOS adapter for EFW&Cooled camera(6.5mm backfocus version).
Extend distance: 17.5mm
This new type is unadjustable. EOS-EFW support Canon EF lens only, cannot work with EF-S lens.


So you can use Canon Lens with ASI1600 and EFW

Before first usage of this product read Manuals and install correct Drivers and Software.
Shipping
It will take around 60-90 days for shipment via ePacket/China Post Registered Air Mail/EMS, which can’t be guaranteed due to force majeure.
- Fast Shipping(amount ≧ 199USD) for free
- Fast Shipping(amount < 199USD) : $20.00 (We do not provide free shipping from now on.)
If you can’t get the air mail package after 2months, please let us know ASAP: info@zwoptical.com
Introduction
- Fast Shipping: we will choose DHL, UPS, FedEx etc to deliver it. Usually you will get your package within 7-14 days.
- Customers from Brazil and Chile should leave a message to provide your CPF or CNPJ as your custom needs it.
- Customers from Russia need to provide the complete English name with three words as well as the English shipping address.
Tracking site
DGM: http://webtrack.dhlglobalmail.com/?locale=en-US
China air mail: http://www.17track.net/en
Tax
- The price list on our website is USD without tax.
- Please note that buyers are liable to pay tax involved, such as Import tax, VAT , customs handling fee, etc. The additional fees may be collected at time of delivery by courier.
- For best local service we advise customers buy our cameras form local dealers.
Warranty and Return Policy
- We provide 2-year warranty for our products, we will offer the repair service for free within warranty period. After the warranty period, we will continue to provide repair support and service on a charged basis. We do not provide any replacement unless ZWO confirmed the product is DOA (Dead On Arrival).
- This warranty does not apply to damage that occurred as a result of abuse or misuse, or caused by a fall or any other transportation failures after purchase.
- Customer must pay for shipping when shipping the camera back for repair or replacement. If we confirm you can get a replacement, goods must be returned with all accessories, instructions, etc and must be suitably packed.
- If you get a faulty camera, please contact us as soon as possible though email: support@zwoptical.com. Please describe the problem in detail and we will do our best to help you solve the problem. Most instances perceived problems are simply bad driver install or software configuration.
- We will provide you RMA number if your camera requires warranty repair. We refuse any return without RMA number!
- For customers who bought the camera from our dealer, dealer is responsible for the customer service for you.
Sandy – :
Hi, can this be used with an asi120mm-mini and the 5 position mini filter wheel?
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Support@ZWO – :
120mm-mini need OAG or guide scope. This adapter can work with EFW mini.
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tomare – :
When will this adapter be in stock for shipment? it says Available on backorder?
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sara.liu – :
It is in stock at present. Please place order on our website directly;-)
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Karol – :
Does the adapter work with EFW Mini only or also the bigger 7 and 8 position wheels? I would like to connect ASI1600MM PRO with the bigger EFW to a Samyang 135mm EF lens.
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ZWO.Moson – :
Yes, this adapter can also work with 1.25″, 31mm and 36mm 7 or 8 position EFW.
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Miguel Angel – :
I have Asi1600 MM-P camera, ZWO EFW filter wheel (8 x 1.25 ″) and Canon EF-S lenses.
Is there any piece that allows to use the new generation of Eos adapters, for Canon EF-S lenses?
Does the older generation of Eos adapters allow use with Canon EF-S lenses?
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Moson – :
Sorry we don’t have a piece that can use for Canon EF-S lenses. And the older generation of Eos adapters can not use with Canon EF-S lenses.
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naptune722 (verified owner) – :
Can I use this with Samyang 135mm lens(canon EF mount)?
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Moson – :
Yes,you can use Samyang lens with EFW.
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Bigfish – :
When using this on a 183 Pro do I also need an 11mm spacer or a filter wheel?
Is this correct?
Thank you!
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Katherine Tsai – :
Yes, you will need an EFW but do not an 11mm spacer.
If you want to connect the Canon lens without EFW, you can refer to this link:
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Bigfish – :
Can I use this on the 183 Pro and any new Canon lens?
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Katherine Tsai – :
Yes but please also notice that this adapter supports the EF lens only.
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Chris Hanson – :
What comes in the box?
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Katherine Tsai – :
What you see from the first picture is what you get in the detail page.
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bluerain1426 – :
Can I install filter inside?
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Katherine Tsai – :
No.
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Jonathan – :
Can we get a version that includes an OAG prism built-in? Possibly pre-spaced for asi120mm+canon backfocus requirements? I’m unable to find a way to OAG+EFW on a Canon or Nikon lens. Even an optional pre-drilled prism hole would be lovely for using the prism from the ZWO OAG!
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Katherine Tsai – :
Sorry we do not have it.
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