AGeoJO wrote:
While I am not downplaying the focus shift issue but this is not how we go about taking pictures in real life, right? Normally in AF-S, we choose the aperture that we need, then we focus on the target and press the shutter button. If we are in the AF-C button, then this is a non-issue, isn't it? Am I missing something?
When not shooting MF, I shoot AF-S probably 95% of the time, 5% AFC.
The problem with AF-S is that the A7RIII body acquires focus wide open then stops back down to take the exposure, which results in focus shift and OOF shots. Even with live preview on, when you press the shutter button, it opens up momentarily, acquires focus, then closes down to working aperture again. You can observe the behavior by looking at the aperture.
So on my first copy, all shots at > f4 in AF-S resulted in OOF shots, rendering the lens useless for most of my AF shooting. My 2nd copy appears to have no such problems, however.
AGeoJO wrote:
While I am not downplaying the focus shift issue but this is not how we go about taking pictures in real life, right? Normally in AF-S, we choose the aperture that we need, then we focus on the target and press the shutter button. If we are in the AF-C button, then this is a non-issue, isn't it? Am I missing something?
When not shooting MF, I shoot AF-S probably 95% of the time, 5% AFC.
The problem with AF-S is that the A7RIII body, acquires focus wide open then stops back down to take the exposure, which results in focus shift and OOF shots. Even with live preview on, when you press the shutter button, it opens up momentarily, acquires focus, then closes down to working aperture again. You can observe the behavior by looking at the aperture.
So on my first copy, all shots at > f4 in AF-S resulted in OOF shots, rendering the lens useless for most of my AF shooting. My 2nd copy appears to have no such problems, however.
AGeoJO wrote:
While I am not downplaying the focus shift issue but this is not how we go about taking pictures in real life, right? Normally in AF-S, we choose the aperture that we need, then we focus on the target and press the shutter button. If we are in the AF-C button, then this is a non-issue, isn't it? Am I missing something?
When not shooting MF, I shoot AF-S probably 95% of the time, 5% AFC.
The problem with AF-S is that the A7RIII body, acquires focus wide open, then stops back down to take the exposure, which results in focus shift and OOF shots. Even with live preview on, when you press the shutter button, it opens up momentarily, acquires focus, then closes down to working aperture again. You can observe the behavior by looking at the aperture.
So on my first copy, all shots at > f4 in AF-S resulted in OOF shots, rendering the lens useless for most of my AF shooting. My 2nd copy appears to have no such problems, however.
AGeoJO wrote:
While I am not downplaying the focus shift issue but this is not how we go about taking pictures in real life, right? Normally in AF-S, we choose the aperture that we need, then we focus on the target and press the shutter button. If we are in the AF-C button, then this is a non-issue, isn't it? Am I missing something?
When not shooting MF, I shoot AF-S probably 95% of the time, 5% AFC.
The problem with AF-S is that the A7RIII body acquires focus wide open, then stops back down to take the exposure, which results in focus shift and OOF shots. Even with live preview on, when you press the shutter button, it opens up momentarily, acquires focus, then closes down to working aperture again.
So on my first copy, all shots at > f4 in AF-S resulted in OOF shots, rendering the lens useless for most of my AF shooting. My 2nd copy appears to have no such problems, however.
Feb 02, 2018 at 12:42 PM
Previous versions of darrellc's message #14349422 « New FE 24-105 f/4. How good? »
