What is the difference between the Primus L and the Primus DL?
There is no difference in the structure of the test structures of the Primus L testphantom and the Primus DL testphantom. Both variants meet the requirements of DIN 6868-4: 2007-10.
The different names have a "historical" background.
In the past, the Primus portfolio comprised two Primus L variants.
Primus DL = 30cm x 30cm
Primus DS = 20cm x 20cm
After the discontinuation and removal from the product portfolio of the Primus DS, it was decided to name the Primus DL -> Primus L.