I have just taken today some photos with a 3 dioptre close-up lens held over the lens of my Kodak Brownie six-20 Model 'D' made by Kodak England -- I used very outdated Kodak Vericolor III 120 film re-wound onto a 620 spool -- lighting was a British Bowens Monolite 400 on full power, camera on a Slik 88 tripod and the exposure made by 'Open Flash' method -- the Little Piggy is about 15 cms high and I was 31.5 cms away