PX27A BATTERY THIS IS A 6 VOLT BATTERY THE ORIGINAL 5.6 VOLT IS NOT MADE ANY MORE BUT HE REPORTS NO PROBLEMS WHEN USING THE CAMERA (ON THE WEB SOME PEOPLE SAY IT MAKES NO DIFFERENCE SOME PEOPLE AJUST THE FILM SPEED DOWN A NOTCH TRIAL AND ERROR ITS UP TO YOU HE JUST USES LIKE ITS A ORIGINAL BATTERY. ).
Rollei Rolleiflex 3.5C. I prefer TLRs over mirror reflex cameras like Hasselblad, as I can handhold at much slower shutter speeds (even down to 1/15sec sometimes). It is also a more portable solution and you find yourself using it way more often.