Need help identifying adapter for ASI120MINI camera

Got-zwo-asi

Hello,
I want to couple an ASI120MINI camera to an Arducam 50mm lens - which is a C-mount lens
I will need a 1.25" adapter with female C-mount thread to thread to the lens
Or I will need an adapter with male threads which threads into the female threads which exist within the housing of the ASI120MINI camera.

But I do not know what the threading standard is for those female threads within the housing of the ASI120MINI camera.

Can anyone advise to an adapter I can find?
Sincere thanks!

w7ay

Got-zwo-asi I will need a 1.25" adapter with female C-mount thread to thread to the lens

Check the original box for a black ring that goes from C-thread (1") to eyepiece thread (1.25"). This is a C-mount lens on a ZWO mini camera:

A C-mounted lens (like the Fujinon in the picture) requires a extra C-to-CS spacer (just a 1" male-to-female thread spacer that is 5mm thick to convert 12.5 mm flange focal distance of the camera to 17.5 mm flange focal distance of a C-mount lens). It should also be included in the box. If you don't find it in the box, just buy it from places like ScopeStuff. If your lens is a CS mount, you won't need this extra spacer.

Chen

Got-zwo-asi

Thank you very much!!!
Unfortunately - there were no black rings included with the ASI120
There were adapter rings included with the Arducam lens - but none which fit the camera housing.

The ASI-120 did come with an extender which screws into the front of the housing and is 25mm long
And that extender has an end-cap
The threading on that extender is male threading at 29.8mm
Can you tell me if that 29.8mm threading is a standard of some kind?

Sincere thanks!

w7ay

Got-zwo-asi Can you tell me if that 29.8mm threading is a standard of some kind?

1.25-inch filter thread.

Chen

Got-zwo-asi

Well.....Isn't it true that 1.25-inch filter thread is M28?
I have a few filters that I use with visual observing
They screw into the front end of an eyepiece which is 1.25"
I took one of them out today and measured it - and it measures 28.3mm

I then tried it on the end of the ASI-120 camera housing
It was too small
The ID of the camera housing measures as a little over 29mm

However - when I look at the drawing from ZWO for the camera
They show a small end-cap on the end of the camera housing
And they call that end cap: 28.5 * .6
So perhaps I should just go ahead and purchase an M28 adapter and see if it works

Got-zwo-asi

I went ahead and purchases a C/CS Female Thread to M28.5 (1.25" Filter) Male Thread Adapter
I think you're probably correct - and it is the right part :-]

Huge thanks!!!