I have a solar filter for a long lens. I now have a long lens that has a smaller diameter than the first one. So, instead of getting a new solar filter at c£80 I am looking to get longer plastic thumbscrews to fit to it, so I can use my existing one. I asked the suppliers about the spec of the thumbscrews and they said this:
The plastic screws are 1024 x .75". So you will need a longer 1024 x 1.00"
Does that make sense, and where could I get some...?