Comment Re:Where did the 500k number come from? (Score 1) 28
cardboard is cheap. when I went to find the specific lens they called for, it ran $10-15. Maybe I could have gotten that cheaper, but I'm no optics guy and I had really little clue what I could safely swap. When I read about the cardboard, it recommended a specific thickness and weight that wasn't what my standard boxes had (closer to pizza box I think?). So, I paid $10 for some cardboard that was already stamped and cut as I needed and was the right thickness, and came with the recommended lens and other pieces. I could have saved $5-$10, but I probably would have wasted an hour or more and likely failed somewhere if left to my own devices to source and draw/cut the parts.