Generally they mean stuff like aperture auto-adjust and auto focus. In this case however I think they mean both - this listed as cons:
- Slow max framerate of ~1fps with AF (but increasing to 2fps with AF/AE lock and 12.8fps in High Speed Burst HQ mode)
- Lens is on the slow side (in terms of maximum aperture); tripod almost a necessity when shooting at 50X zoom
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