About a week ago i asked if anyone knew how to use a close-up ”Elpet” lens that u screw on to either an Elmar 3,5cm or 5cm. Since then i have taken a couple of test photos to find the distance between the lens and the subject so that the subject will be in focus.
First i asked chat about it, and he gave me a couple of answers about which distance i needed, 27 or 31 he said. I also used my other analog camera (a Canon FT QL) which is a mirror camera with a 50mm lens (which is the same as my Elmar 5cm). By holding the close-up lens infront of it, i got focus when i was about 24 cm from the subject (for u americans thats about 9,4 inches). With that in mind, plus the measurements chat gave me, i cut out three different lenghts of carboard (pic 2) and held these infront of the close-up lens when it was attached to the Elmar 5cm lens and took pictures of a paper on which i wrote the lenghts plus a couple of random symbols. It turned out that the 24 cm lenght was the right one (pic 3; didnt include the others, didnt even scan them because i saw directly on the negative that they’re where out of focus).
Since I want to be able to take macro photos when I'm out and about, i made a collapsible measuring stick out of a folding yardstick (pic 4). I measured this to 24 cm (each length 12 cm) and painted it red (so far I've only given it one coat so the numbers are still visible thu, but in 1-2 coats it should be opaque).
Every time I want to take a macro photo I can take out the measuring stick, hold it against the lens and just so it touches the subject (as demonstrated in pic 5). That way I know it's in focus. Ofcourse it’s not gonna be perfect but what can u ask for.
As you can see in the pictures i obviously need to learn how to point the camera correctly lol, but that's another story (the last following pictures are the test photos of various flowers).
So for all people out there who have a Elpet close-up lens to Elmar 5 and 3,5cm - 24 cm (9,4 inches) seems to be the distance needed for focus!