PK Ricoh 4/28-100mm with modificated macro 1:1

[Pancolart]

I managed to modificate Ricoh macro 1:4 to ratio 1:1. Aperture auto still works, glass is as new.
You can change magnification ratio and minimal focusing distance from 0,5cm to 50cm.
Poppy seeds on an orange and tomato slice.

[Pancolart]

[a20010494]

Hi, how did you changed the optical formula to get those results?

[Pancolart]

Optical formula isn't changed only all the limits are off. All three variables can now be taken to their max. values. Many parts became superfluous, outside dust protection is replaced with smooth leather.