Recent content by Paddyster

results didn't work at all, I think the problem was I took the pictures too close with the flash on so there was a lot of glare and what not. Do you think if I done them again with no flash they would work? I don't know how focussed they were as I only got the negatives printed, the camera says...

Hi, I recently tried to create diffraction gratings using the negative film of a disposable camera. I designed them so the 'slits' were black and the rest was white so on the negative film the slits would be transparent and the rest would be opaque. It didn't work however. Does anybody have any...

Hi, I'm doing my third year project on diffraction gratings and patterns and analysaing them via computer software and Fourier transforms. I'm going to design my diffraction gratings this week and then create them via taking a picture with a disposable camera and using the negative film. What...

It's difficult to explain. I'm making diffraction gratings using the printer mentioned and transparent overhead projector sheets. The lines I plot however have jagged edges and if I plot them too closely they will merge into one. How close can I plot them and still get the best quality...

Hi, Wasn't sure where to post this so thought I would post it in general. How do I avoid aliasing problems on a 600x600 DPI printer? Kind regards.

Hi, This is my first post so apologies if I'm not clear enough or if I am posting in the wrong place. I am doing my 3rd year project at university and I am creating diffraction gratings. My supervisor shown me a Canadian note and if you shine a laser through the maple leaf it will shine on the...