Product Description
This new ZWO-EOS-T2-Ⅱ adapter has two parts (EOS-T2 adapter and 5mm length T2-extender), suitable for all ASI cameras
This new type is unadjustable. EOS-T2 support Canon EF lens only.
EOS-T2 adapter without T2-extender is suitable for 17.5mm backfocus distance ASI cameras such like Cooled cameras and ASI174 ASI294 ASI183 ASI1600 ASI533 ASI2600 except ASI6200 and ASI2400

EOS-T2 adapter with the 5mm T2-extender, suitable for all 12.5mm backfocus ASI cameras such like ASI120 ASI224 ASI290 ASI178 ASI385 ASI462.
You can use 2″ IR-CUT filter with the adapter.

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.
Pranil Tari – :
Is it possible to use this adaptor with sigma art lenses for canon along with ASI1600+ASI mini filterwheel?
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ZWO.Moson – :
Sorry this adapter only support Canon EF lens.
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Peter Wacker – :
Hello,
I got the above product to use with my asi 2600mc pro and the canon 70-200 L III 2.8 lens but I couldn’t get it to focus correctly. Using additional spacers would make rather worse. Am I missing something?
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ZWO.Moson – :
Did you remove the T2-extender before you connect this adapter to ASI2600MC Pro?
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CHAITANYA – :
It is mentioned in the description “You can use 2″ IR-CUT filter with the adapter.”
Can any of the 2″ filters be used with this, like Ha, SII, OII ?
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ZWO.Moson – :
Yes, you can use 2″ Ha, SII, OIII.
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Tim Kimbler – :
I have a 1600 MC P I would like to connect my Cannon 16-35 EF and 24-105 EF and 70-200 EF lenses. Is this the correct adapter? Thanks
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Katherine Tsai – :
Yes.
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Woo Chun kit – :
剛使用這個適配器連接我的samyang 14mmF2.8(ef口)鏡頭,但不能合焦,要將光圈收至最少F22才行, 之後換了一個沒帶濾鏡槽的eos轉 t2適配器,量度後非26.5mm,要減1mm才行,而我用samyang 135mmF2.0就沒有這問題,合共44mm剛好(補充我是用071mcpro)
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Katherine Tsai – :
冷冻相机自带调整用的垫片,可以用来调整后截距。
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B – :
I am using the Samyang 135 mm canon version lens with required 44 mm backfocus. I will be using the mini EFW ( 20mm backfocus) with this adapter to connect to ASI 1600. Will that give me the required 44 mm backfocus?
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Katherine Tsai – :
Please refer to this adapter.https://astronomy-imaging-camera.com/product/new-eos-lens-adapter-for-efw
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Anas (verified owner) – :
I have:
Samyang 24mm F1.4 ED AS IF UMC for Canon EF
can I use this adapter with it along with ASI294MC Pro?
also can I use TWO 2″ mounted filters? or is it just ONE 2″ mounted filter?
Thank you
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Katherine Tsai – :
1. EOS-T2 supports the Canon EF lens only.
2. You can use a ZWO 2″ IR-CUT filter with the adapter.
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David Van Blarcom – :
Can I use standard 48mm filters (e.g. Optolong eN-hance) with this adapter?
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Moson – :
You could use 2″ mounted filters with this adapter.
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Andrew Thomas – :
Hi all at Zwo,
I would like to get the above item so i can connect my asi 294mc-pro to my samyang EF lenses, my sticking point can i squeeze in 2 inch round mounted filters in anywhere ??
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Moson – :
Sorry the New EOS-T2 Adapter support Canon EF lens only.
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Diego – :
Work well with ASI290MC and a Canon 70-200 f/2.8 lens???
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Moson – :
Yes, this adapter can work well with ASI290MC and Canon EF lens.
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manuel ANTUNA – :
Hello at ZWO,
I’d like to know how to adapt my 1600 GT to a canon lens please.
Is that adapter suits my needs or do i have to choose another adapter ?
Thanks for helping me out.
Manu.
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Moson – :
Sorry this adapter can not connect 1600 GT to a canon lens.
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Thierry Van Driessche – :
What is the extend distance of it without the T2-extender?
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Moson – :
The extend distance of EOS-T2 adapter is 26.5mm.
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marekgradzik81 – :
Hi, Can I use this adapter EOS-T2 with ASI 178MM? Thank you.
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Moson – :
Yes,this EOS-T2 adapter is suitable for ASI178MM with the 5mm T2-extender.
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Andy brinkmann – :
Will this adapter work with Canon EF-s lenses
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Katherine Tsai – :
It does not.
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Terry Adrian – :
Will this adapter work with Canon EF-S lens and if so where is it getting power to allow manual focus.
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Katherine Tsai – :
It does not has power connection.
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Alex – :
Can I use this adaptor on MFW?
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Katherine Tsai – :
There is noi place for MFW if you use this adapter.
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chudinov.k – :
I don’t understand. In description is written `ASI1600`, but this camera has backfocus 6.5mm, not 17.5 or 12.5mm! And what about 071pro? Is this ring OK for it?
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Katherine Tsai – :
You can add a 11mm T2 ring to ASI1600, then you will get 17.5mm back focus.
It is OK.
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Fernando – :
hello would use a canon 200mm 2.8 with the asi6200mc and an oag. what do they tell me?
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Katherine Tsai – :
Sorry it cannot connect to ASI6200 directly, you will need a M54-M42 adapter which comes with EFW.
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vishal_chhavi – :
Hi, Does this adapter require EFW to achieve focus with EF lens?
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Katherine Tsai – :
It does not.
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Sebastiano – :
Good morning, is it possible to use the EOS-T2 adapter also with an ASI 120 mini with an additional adapter? Thank you.
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Katherine Tsai – :
Sorry, no.
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