Currently using a throwaway webcam to view backyard bird activity connected to a Raspberry PI3 using MotionEyeOS. The RPI3 is outside, as is the camera.
Question is... Is there a simple/cheap means to create a lens which would allow this, or any, webcam to zoom in say to a fixed point with a magnification of 3-5-10X? ie, the feeding area. Wish to view closer up what is happening about 15-20 ft (up to 6 meters) distant from the camera.
Repositioning the current webcam is not feasible.
If a simple field glass/telescopic lens solution is even possible then links to sites which might be relevant would be appreciated.
The Raspberry PI3 streams from outside and generates enough heat that it will probably survive some cold nights with its simple housing. The web cam is wired to the RPI3, but options are limited by what the RPI3 supports and the webcam needs to be cheap in the event it freezes and dies. Fancy web cam solutions won't work and are not supported by the RPI3 anyway.
Tried SE.Photography first, but if there is a more appropriate forum or forums I will redirect.