One major reason is that the T Power Control 1, which all the macro flash units use in common , it works by simply slips into the camera hot shoe just like a normal compact flash unit. The desired macro flash model is then mounted on the lens and plugged in. The whole assembly of camera, auto bellows or telescopic extension tube, macro lens, flash and, when needed, motor drive. It provides great mobility and portability even with all necceesary components attached. The T Power Control 1 is about the same size as the T32 and most often would cause some confusion to new OM users or those who has no idea how the marvellous OM macro system works.
Matches view of camera lens.
Viewfinder indication contact provided. Charge lamp and viewfinder indication contact. HI and LOW settings switchable. Electronic Flash AC Adapter 3.