I started in 1985 with a Canon 35mm film camera. I eventually ended up with a T3i until I read about Sony Mirrorless Cameras. Especially the Full Frame cameras. I sold my Canon and bought a Sony A7R3, in 6 months I went to an A7R4A and a year after that I bought my A1. I wasn't aware of how good cameras could get before I bought Sony. Good luck with your new business. I will add one bit of advice. I got into photography because I loved creating my own images, it was the creativity that drew me in. Then I was asked to do a wedding. I tried to turn my hobby, a hobby I loved, into a business. The stress of shooting weddings and producing on demand...it soured my love of photography. I left for several years and now that I'm back, I wont ever mix business with my love of photography again. This was only my experience. Good luck my friend.