Definitely go for one of the stretchable neoprene neck straps. I use the Optech on a Mamiya C220, which is larger and heavier than the Yashica TLR, with reasonable comfort. Regular straps just don't cut it. Every step you make imparts an impact on your neck and shoulders. The natural give of the neoprene absorbs a lot of the shock. At the end of the day, your neck and shoulders will thank you.