Product Description
ZWO 1/3″ 2.1mm 150 degree lens
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
$22.00
Before first usage of this product read manuals and install correct drivers and software.
Nick – :
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 – :
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 – :
Do you sell C lenses for cooled cameras? I am getting the 178MC-cooled.
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Sam Wen – :
no, but you can order many from market
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Bartron (verified owner) – :
What is the f-ratio?
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Sam Wen – :
f2.0
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Ben Stew – :
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 – :
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 – :
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 – :
this is CS lens
CS is standard interface
so if you camera have CS mount, you can mount it
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Ian – :
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 – :
this lens is only for 1/3″ sensor, 1600’s sensor is too big
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Ian Price – :
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 – :
yes, this is CS lens, you need 5mm extender to use it on C mount camera
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Ben stew – :
There’s no way of using this on the ASI290?
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Sam Wen – :
ASI290 come with this lens
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