The days before digital cameras and affordable macrolenses, people also did take closeup photos. I have done it before taking macroshots with vintage gear. But not enough to get comfortable with it. Yesterday, it was raining again ,decided to give it a try again. Out came the bellows and an vintage lens, in this case the Super Takumar 50mm f2.0. Mounted everything with an adaptor on my digital Fuji and the play started. With bellows you can get pretty close and the vintage lens gives a dreamy look. I could come as close as 1 cm to my subject and depending on the focal lenght of your lens of choice you can get amazing details. These were done with a 50mm but if you use a 135mm you get really deep into your subject. They do not have the sharpness of modern lenses but found it very creative.
Here is the setup