3 ms·
If you're using a Metabones or LA-EA4 adapter on a camera with phase detect AF, there's no practical difference. AF will be slower on a camera that only has con
by jdietrich 10y ago
If you're using a Metabones or LA-EA4 adapter on a camera with phase detect AF, there's no practical difference. AF will be slower on a camera that only has contrast-detect AF.
- slantyyz 10y agoThe LA-EA4 doesn't count since it doesn't cover your statement "Your dad's old lens F-mount lens will work perfectly". Every Metabones review I've seen had slightly slower AF. "Perfectly" still does not apply. Also, not all lenses work with Metabones, i.e., the lenses that don't work with teleconverters because their backs stick out too much. While I appreciate the benefits you're selling, those adapters aren't perfect.