Questions about Samyang MF 24/35/50/85mm MK2 VDSLR, Canon R Kofferset

Hello all, I am interested in the used case set "Samyang MF 24/35/50/85 MK2 VDSLR case set Canon R". You mention signs of use. That is relative. What exactly shows signs of use and how much? Please send me pictures of the lenses where you can see these marks, then I will decide to buy. Email: stephan.troesch@etik.com Stephan Trösch, Hauptstrasse 37, 8225 Siblingen, Switzerland

The RF system only knows the sensor compatibility DX, full format and the EF system knows both sensor compatibilities: APS-C / DX, full frame or am I wrong?