Build-to-order lenses?

McDiesel · May 27, 2022

I own a few older cameras with waist level finders equipped with magnifying loupes. Some of them I was able to find swappable magnifiers with diopter adjustments required for my vision. For others, I wasn't able to.

This got me thinking. If I take a magnifier apart, like this one, pull the lens out and send it somewhere, or just take measurements like diameter and focus, and then have someone make an equivalent but with a required diopter adjustment (focus distance). Has anyone heard of a service like this?

Thanks!

AgX · May 28, 2022

Some stores sell plain biconvex lenses off the shelf as single piece in retail. Do the math, order one, DIY-fix it to the original holder.

For example (expensive):

Doppelkonvexe Linsen (DCX) unbeschichtet | Edmund Optics

TECHSPEC® Unbeschichtete doppelkonvexe Linsen (DCX-Linsen), auch bikonvexe Linsen genannt, sind ideal für die Bildgebung. Jetzt bei EO!

www.edmundoptics.de

McDiesel · May 28, 2022

@AgX thank you so much, simply googling for plain biconvex lens is now giving me new hope!

Tel · May 29, 2022

Or you can try Edmund's US store;

Plano-Convex Lenses - PCX Lenses - Plano Convex Lens

A large selection of Plano-Convex (PCX) Lenses with standard broadband and laser line anti-reflection coatings are available at Edmund Optics.

www.edmundoptics.com

Or (cheaper but less selection), Surplus Shed:

Surplus Shed

www.surplusshed.com

When I was building my collimator I found all the parts I needed between these two suppliers.

Dan Daniel · May 29, 2022

Tel said:
When I was building my collimator

Uh... can you say more about this? DM is fine so you don't clutter this thread. Or maybe you discussed somewhere here?

AgX · May 30, 2022

Tel said:
Or you can try Edmund's US store.

I changed for the OP the site I was on to the US variant, and it actually turned up, but for unknwon reason the URL does not change...

In general I dislike their web-appearnce, which is most confusung. They also had or still have a shop for educational purpose but I could not access it.

Nitroplait · May 30, 2022

Wouldn't most opticians be able to that easily? My optician has facilities to fit the lenses into the frames on site.
Just a thought. No idea about the cost efficiency.

Build-to-order lenses?

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