Jump to content


Advice on a c-mount adapter

Twisted Lip

Recommended Posts

This is more of an equipment question but I can't think where else to put it so have settled for this forum :)

This week at SGLIX I'm playing around with a new bit of kit (180degree fisheye lens) and some existing kit but I'm a bit stumped trying to put the lens onto a specific camera. The lens has a standard c-mount but the only way of attaching to the camera is via a standard 1.25" filter thread (which I think is M28.5). Now there are plenty of male c-mount to 1.25 nosepiece adapters (I have one, and similar adapters) but for the life of me I can't find anything that is female c-mount to male m28.5 (i.e. 1.25" filter thread).

Anyone come across anything like this before or have any ideas? Even a female c-mount to female 1.25' nose piece might work.



Link to comment
Share on other sites

No its definitely a weird one and not something I've come across before. I'd be tempted to make something myself but I'd be going back to CDT classes (showing my age there!) since I last used threading dies! lol


Link to comment
Share on other sites

I haven't tried it, but you might be able to do it with two adapters:  a c-mount female to T-thread male, plus a T-thread female to 1.25" male.  For example:




A cheap DIY alternative could be to buy an inexpensive c-mount lens to DSLR/ Micro 4/3 camera adapter and Araldite on to this an old 1.25" threaded filter cell with the glass removed 






Link to comment
Share on other sites

  • 5 years later...


Here is the good adpater(5mm long). I need it to link the MiniGuiderScope QHY with a StarAid and allow to reach focus(many other similar adapter had 8.3 to 9.0 mm long(included a ring of 5mm) and I cannot reach focus with them.


Blue Fireball C / CS Female Thread to M28.5 (1.25" Filter) Male Thread Adapter # V-05 r Price: $19.95

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.