The focusing mechanisms on the bellowless tend to be dodgy or nonexistent, and the good ones cost as much as a bellows camera. Ultimately, the lenses for these

The focusing mechanisms on the bellowless tend to be dodgy or nonexistent, and the good ones cost as much as a bellows camera. Ultimately, the lenses for these cameras are still not that cheap, so the overall savings on a low-quality body may not be worth it.