Aaha! You really want to know where I failed…I know it: you are reading this post!
Well,I will reveal you the secret of why my pinhole camera was still vignetting after the so called improvements I made.
In fact, I placed my handmade pinhole in front of the original aperture.The pinhole was 2.5 cm far ahead from the aperture. I didn’t realise that it could have an influence on vignetting, as I have no experience on pinhole DIY. But it became clear when I saw the traces of torture on the film (I mean the traces of teeth of the tools I used for enlargement).
Recommendations of Doc Pinholistically Yours: just place the pinhole behind the aperture and cross fingers. I swear that if it doesn’t work, I stop this blog.
I took some pictures to show you How I did it:
This is the picture before the the surgery.
I have separated the body from the film holder
hum hum… lensless photography? Are you sure?!
Draw the shape of the pinhole on a aluminium food packaging
Then cut it
covered the pinhole with some black adhesive tape, inserted it in the joint of the camera
Replaced the film holder in its place….
I scanned the pinhole to mesure it before installing of course. The diameter was 0.4 mm for 7.5 cm as a focal length.F stop: 187,5. Cannot wait for the results!
DON’T LAUGH AT ME! OTHERWISE….
I will post the results soon…