watercolors

Digital Telephoto Pinhole and Test Images

181mm telephoto pinhole for canon EOS R100. 

         Test image from across the house.

This 'lens' has a focal length of 181mm and a pinhole diameter

of ~0.59mm. It's made using 2 inch diameter black PVC pipe, 

a PVC cap, Aluminum from a Quirk can (0.2mm thick), gaffer tape, 

and a Canon body cap. 

I'll update with more photos here as I take them. 

Speech Recognition