>>3951395Pro level APS-C and M4/3 lenses are significantly cheaper and lighter than their FF counterparts. These are pretty good reasons for crop systems to exist.
As an example, here's a graph of the cumulative cost (current prices from Adorama) and weight of a typical trinity setup in M4/3, APS-C and FF, respectively. Constant f/2.8 max aperture, at least 12-200 mm equivalent coverage
>M4/3:1. Olympus E-M5 Mark III
2. Olympus M.Zuiko ED 12-40 f2.8 PRO
3. Olympus M.Zuiko ED 7-14mm f2.8 PRO
4. Olympus M.Zuiko ED 40-150 f2.8 PRO
Total cost: $4,796
Total weight: 2,090 g
>APS-C:1. Fujifilm X-T4
2. Fujifilm XF16-55mmF2.8 R LM WR
3. Fujifilm XF8-16mmF2.8 R LM WR
4. Fujifilm XF50-140mmF2.8 R LM OIS WR
Total cost: $6,296
Total weight: 3,062 g
>FF:1. Sony α7 III
2. Sony FE 24-70mm F2.8 GM
3. Sony FE 12-24mm F2.8 GM
4. Sony FE 70-200mm F2.8 GM OSS
Total cost: $9,792
Total weight: 3,863 g
The problem with Canon, Nikon and Sony is that these lenses and bodies simply don't exist. They need to make a decision, either add a line of entry level FF bodies, or start making pro level crop lenses.
