So here is my ZWO 1.25" Atmospheric Dispersion Corrector, which helps realign channels/colours during imaging of low-to-mid elevation targets.
I never got around to using it (I have too many other hobbies), and it's been sitting in its original box untouched. Never inserted into any tube.
Attached are the most boring photos of a boxed item. I'm happy to open it up and take photos of the optics, but wish to keep this as New as possible.
Official product page with transmission curves, dimensions and other specifications:
https://astronomy-imaging-camera.com/product/zwo-adc
(Note: ZWO's price is in USD, with shipping on top of that)
ZWO's QuickGuide can be downloaded here:
https://astronomy-imaging-camera.com...QuickGuide.pdf
My asking price: $110, shipping within AU at no charge (I have the original parcel box ZWO shipped it in, it's small!)