D 86 - Chestnuts

Macro festival goes on.
These are some dried chestnuts skins from the Fall. I never thought that they had so much texture and color in them.

Equipment

E-510 with 15mm (the 1st photo) and 48mm (the 2nd one) macro distance rings between the body and the Pentacon 30 3.5. Tripod
Aperture f/22, exposure 30+ seconds. Mirror lock-up.

What I learned

Distance rings are excellent but they severely decrease the amount of light reaching the sensor. So do very small apertures, which are necessary to get some depth of field.

I had some wild ideas today, one was to put the distance rings between the camera body and the Tair 300mm lens. I got a 1:2 magnification factor from a distance of about 2m from the sensor. But the lens is so heavy that I can't hold it steady enough for macro.