Reduce
Before thinking about reuse, recycling or disposal options for your telescope or binoculars, have you considered whether it could be repaired?
Reuse
The Royal Society for the Protection of Birds have a second-hand scheme which will collect unwanted working binoculars, telescopes, spotting scopes or tripods.
You can also offer items in good condition to charity shops or through an online reuse network, or sell through a car boot sale, jumble sale, or online market place.
Offer unwanted items to friends, neighbours or relatives, or re-gift unwanted gifts next Christmas.