ZWO 1/3″ 2.1mm 150 degree lens

Product Description

Technical Parameter:

Format support: 1/3″ sensor

Focal length: 2.1mm

Wide angel: 150 degree

Match Model：ASI120mm, ASI120mc, ASI120mm-s, ASI120mc-s, ASI224mc, ASI290mm, ASI290mc

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.

Do you have question, answer or comment? Post here!

Bruno – January 10, 2021:

Will it work with the asi120mm mini/asi290mm mini?

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- Support@ZWO – January 11, 2021:
  
  Yes.
  
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Martin – October 13, 2020:

Will it fit to old ZWO Camara ASI 034 MC with a T2 To CS or C adapter?
Thank you

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- ZWO.Moson – October 14, 2020:
  
  Yes, this lens fits old ZWO camera ASI034MC.
  
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Laurent – August 2, 2020:

Do we need an IR filter with this lens to get real color of the sky ?
Which one ?
I would like to use it with 224 MC.

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- ZWO.Moson – August 3, 2020:
  
  Sorry you can’t use IR filter when this lens was instaled in the camera. And we don’t have a solution, you could do it by yourself.
  
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Possberg Claus – March 3, 2020:

Can you support it as an additional image channel in ASAI Pro? Would be very useful for remote application to have a look to the sky (clouds etc)?

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- Katherine Tsai – March 4, 2020:
  
  Thanks for your suggestion, I will convey your message to our devs.
  
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Huw – March 8, 2019:

Can I use this lens on asi183mc color? if not, can you recommend a fisheye lens for asi183mc color? Thanks a lot!

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- Katherine Tsai – March 15, 2019:
  
  183 sensor is too big for fisheye lens.
  
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Nick – October 16, 2018:

I got one of these with my ASI290MM …..what is this lense used for? There is nothing in the manual that explains it,s purpose

Thanks

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- Sean Wang – October 16, 2018:
  
  It’s a wide angle lens, for all-sky preview and check the camera. It’s nothing to do with planetary imaging.
  
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Stephen R – October 15, 2018:

Do you sell C lenses for cooled cameras? I am getting the 178MC-cooled.

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- Sam Wen – October 16, 2018:
  
  no, but you can order many from market
  
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Bartron (verified owner) – July 11, 2017:

What is the f-ratio?

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- Sam Wen – July 13, 2017:
  
  f2.0
  
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Ben Stew – May 28, 2017:

I never got one with my ASI290MM-cool. But I did get one with my ASI120mm, would it still work with the cooled version?

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- Sam Wen – June 1, 2017:
  
  this is CS lens and won’t work on our cooled cameras
  you need C lens to work with cooled cameras
  
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Ian – May 26, 2017:

minimum focus distance this lens can achieve when properly mounted to a 1/3″ sensor eyepiece camera with the correct spacing?

Thanks

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- Sam Wen – May 27, 2017:
  
  this is CS lens
  CS is standard interface
  so if you camera have CS mount, you can mount it
  
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Ian – May 22, 2017:

Oh I forgot to mention I also have a zwo1600mm-c, so if any of your lens can fit on to that and still fit inside the draw tube that would be great, keep it in the family

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- Sam Wen – May 25, 2017:
  
  this lens is only for 1/3″ sensor, 1600’s sensor is too big
  
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Ian Price – May 22, 2017:

Does this have a C or CS thread on the back of it?

I’m interested in using it with my guide cam to inspect my primary & secondary mirror alignment. Guide cam isn’t from zwo but has a C thread adaptor with I think 17.5mm back focus. I also have a low profile 2-1.25″ adaptor so it should fit in the draw tube even if the lens and focus knob is wider than 1.25″

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- Sam Wen – May 25, 2017:
  
  yes, this is CS lens, you need 5mm extender to use it on C mount camera
  
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Ben stew – April 29, 2017:

There’s no way of using this on the ASI290?

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- Sam Wen – May 5, 2017:
  
  ASI290 come with this lens
  
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