$18.00
Attached with the ASI071MC-C.
The extender is designed to help you to reach 55mm or any other back focus distance.
In this example the aim is to reach 55mm with an OAG: attach the 21mm extender to ASI071 to reach 55mm back focus distance:17.5mm+21mm+16.5mm=55mm
Our website is always updated with the most recent camera drivers as well as software for DSO and planetary imaging. Please make sure the most recent driver and software has been installed before you start shooting:
It is also recommended to read the Manuals first before shooting.
Fast Shipping: we will choose DHL, UPS, FedEx etc to deliver it. Usually you will get your package within 15-20 days.
Introduction
Tracking site
DGM: http://webtrack.dhlglobalmail.com/?locale=en-US
China air mail: http://www.17track.net/en
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1) Product quality problem
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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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