Macro shots with Olympus 50mm, EF 25 II, 68mm extension and two 2X teleconverters.
With the Canon EF 25 II extension tube and a Canon to Olympus adapter more macro possibilities are possible.
The main lens here is the Olypmpus 50mm f1.8, and a combined Panagor?).
Filename legend is Macro magnification as 0xnn, lens used,EF 25 (Canon extension tube), 2x or 4X teleconvertor (if used), extension tube 48mm, focus (cu-close up, mid, far).
The blue haze as seen is the previous gallery is reduced because the telconvertor now sits an additional 25mm away from the camera. Max macro magnification (measured) is about 6.5 as the dia of the ball in the pen is 1.1mm