jyc860923
Top Veteran
- Location
- Shenyang, China
- Name
- 贾一川
I've read people complaining about Sony's stop down focus accuracy issue, unlike Canon that opens up the aperture fully during AF, Sony stops down the lens during continuous AF if you set a smaller aperture value for capturing, e.g. studio work. The reason being Sony does this to avoid heavy focus shift at different f stops on some lenses, at the expense of unreliable AF especially in low light.
Further research leads me to another issue, unlike in AFC mode, in AFS mode, the lens will open up to focus and then stop down to capture but the aperture delay on some lenses is huge.
What do you think about this issue, is it really as bad if you often need to work with stopped down aperture? Is it avoidable using Sigma, Tamron or Samyang lenses?
Further research leads me to another issue, unlike in AFC mode, in AFS mode, the lens will open up to focus and then stop down to capture but the aperture delay on some lenses is huge.
What do you think about this issue, is it really as bad if you often need to work with stopped down aperture? Is it avoidable using Sigma, Tamron or Samyang lenses?