Product Description

Attached with the ASI071MC-C.

It can help you to reach 55mm back focus distance
for example:attach the 21mm extender to ASI071 to reach 55mm back focus distance:17.5mm+21mm+16.5mm=55mm



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.
Michael Gruber – :
Hello!
We are going to buy the ASI1600 but need a bit more space for filters and our interface. The 21 mm adapter looks good but I am a bit confused where the inner/outer threads are for this 21 mm M42-M42 mm adapter. The different images are a bit misleading. Do you have and can you please send me a drawing or step file of this and maybe also other available adapter? Thank you!
Best regards,
Michael
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Katherine Tsai – :
Hi Michael,
Both M42*0.75, sorry I do not have it.
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