Started out when I clued into the fact that being about five feet away meant I should take into account bellows . Had to go looking for a tape measure. I think I still screwed it up-)) Then I had everything setup and ready to go and went to put the filter in front of the lens. Of course the holder I had didn't fit the lens I wanted to use. Oh forgot to bring a hat to use in place of a shutter. Had to use a film holder-)))