Key Mountain - Tiny Tuesday 166

So, using the toy as shown in yesterday's blip - the bellows ( although with a lens change )* The possible macro magnification is quite something as this mountain range of the edge of a standard Yale type key demonstrates !

It also seems that I might have to spend some time dusting ...

* so, a lot of the other classic lenses that I own are "automatic" in the sense that they aperture stays open until you take the shot (like the aperture preview button on a modern DSLR), at which point it is stopped down mechanically by the camera - this worked when they were fitted to their original cameras. As I shoot them - predominantly on the Fuji mirrorless system** - they are locked in aperture preview all the time by the adapter and the funky digital stuff shows me what it actually looks like. However, in the bellows, there isn't the "flange" to depress the aperture mechanism when attaching the lens, so it stays open at maximum aperture constantly - not ideal when you want to get more than 1 micro-metre depth of field. I went for a dig in the box of lenses and this came up as the first one which isn't of that "automatic" type and immediately reflects the correct depth of field. It's a USSR Jupiter 8 M39 mount ( converted to m42 with a simple spacer ) 50mm f2 [ although being shot at about f16 here - de-clicked, so I'm guessing ... ]

** The DSLR adapters have the flange for the automatic bit too, so the view through the viewfinder just gets progressively darker :-P To be fair, if I'm shooting these lenses, I generally shoot them wide open, so it's not really a talking point.