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Set screws?
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PostPosted: Sun Dec 18, 2022 7:00 pm    Post subject: Set screws? Reply with quote

Afternoon everyone! I have a lens with a "T" mount adapter to M42 that has lost a set screw. Because of this the lens wobbles a bit on camera and gives undesirable photos. Does anyone know where to get a variety of small screws to attempt to find a replacement? I was wondering if a set of eyeglass screws might work? Any thoughts?


PostPosted: Sun Dec 18, 2022 7:38 pm    Post subject: Reply with quote

Glasses/spectacles don't have set screws . At least the ones I worn so far.
Your best bet is to cannibalize another lens.


PostPosted: Mon Dec 19, 2022 9:02 am    Post subject: Reply with quote

In the UK:

https://polarbearcamera.com/collections/grub-set-screws

Not sure if they ship to the US.

Or as Himself already suggested; cannibalize another lens.


PostPosted: Mon Dec 19, 2022 8:23 pm    Post subject: Reply with quote

I think my collection of T mounts have at least 3 different screw threads for the set screws. - I seem to remember 0.7mm, 1mm & what may be an imperial size.
It might be simpler to just glue the central portion in place. Whilst this will loose the ability to rotate the camera I wouldn't find that a huge hindrance with any of my lenses (possibly a pain when using a telescope though).


PostPosted: Mon Dec 19, 2022 9:18 pm    Post subject: Re: Set screws? Reply with quote

mr_tibbs2004 wrote:
Afternoon everyone! I have a lens with a "T" mount adapter to M42 that has lost a set screw. Because of this the lens wobbles a bit on camera and gives undesirable photos. Does anyone know where to get a variety of small screws to attempt to find a replacement? I was wondering if a set of eyeglass screws might work? Any thoughts?


Screw sources for lens have already been given. If the T-mount ADAPTER is missing a screw, consider buying another adapter -- they are very inexpensive...