PlasticSpanner
TPF Noob!
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- May 1, 2005
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- Cheshire, England
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I am making a projector screen that is very similar to a pinhole camera and would just like someone to confirm my calculations.
I have a focal legnth of 1265mm and a pinhole of 1.5mm. Will the pinhole be the right size to get a reasonably sharp image and if not how much will I need to change the focal legnth by to use 1.5mm (Hole already machined in a peice of brass!)
I have a focal legnth of 1265mm and a pinhole of 1.5mm. Will the pinhole be the right size to get a reasonably sharp image and if not how much will I need to change the focal legnth by to use 1.5mm (Hole already machined in a peice of brass!)