"Sony A7R II: Focus Accuracy Better than Any DSLR I’ve Ever Used" - Digglloyd

[privatebydesign]

off course. the days of phase only systems are over. anybody who has had focus shift on a dslr knows why.

Only if the contrast detect AF systems work after the lens stops down, which they don't.

 

[benperrin]

Just a quick update on the Sony with the metabones. Whilst the focus accuracy is generally very good I have had several times where the focus stops working all together and even more times where the camera decides to blackout for at least 10 seconds. There are still many issues to be worked out with these cameras.

 

[privatebydesign]

Just a quick update on the Sony with the metabones. Whilst the focus accuracy is generally very good I have had several times where the focus stops working all together and even more times where the camera decides to blackout for at least 10 seconds. There are still many issues to be worked out with these cameras.

At which point i refer back to the first answer in the thread............

 

[benperrin]

Just a quick update on the Sony with the metabones. Whilst the focus accuracy is generally very good I have had several times where the focus stops working all together and even more times where the camera decides to blackout for at least 10 seconds. There are still many issues to be worked out with these cameras.

At which point i refer back to the first answer in the thread............

Yes, there is much bs going around about these systems but make no mistake they are still amazing cameras... when they work.

 

[bwud]

Just a quick update on the Sony with the metabones. Whilst the focus accuracy is generally very good I have had several times where the focus stops working all together and even more times where the camera decides to blackout for at least 10 seconds. There are still many issues to be worked out with these cameras.

I thought that was a metabones thing but mine does that occasionally with native glass too. Buggy firmware I hope.

The thing I notice with the adapter more frequently is the camera not knowing the max aperture. It will display -- rather than an f number, and I have to power cycle. It typically happens after the camera sleeps. Maybe it doesn't supply enough power to the adapter to hold the lens info.

 

[benperrin]

Just a quick update on the Sony with the metabones. Whilst the focus accuracy is generally very good I have had several times where the focus stops working all together and even more times where the camera decides to blackout for at least 10 seconds. There are still many issues to be worked out with these cameras.

I thought that was a metabones thing but mine does that occasionally with native glass too. Buggy firmware I hope.

The thing I notice with the adapter more frequently is the camera not knowing the max aperture. It will display -- rather than an f number, and I have to power cycle. It typically happens after the camera sleeps. Maybe it doesn't supply enough power to the adapter to hold the lens info.

Interesting. Thanks for the info. I haven't noticed any issues with max aperture yet but I have noticed that 1.8 is displayed as 1.7 on the Sony for some reason. The Sony cameras seem to be full of weird issues.

 

[bwud]

Just a quick update on the Sony with the metabones. Whilst the focus accuracy is generally very good I have had several times where the focus stops working all together and even more times where the camera decides to blackout for at least 10 seconds. There are still many issues to be worked out with these cameras.

I thought that was a metabones thing but mine does that occasionally with native glass too. Buggy firmware I hope.

The thing I notice with the adapter more frequently is the camera not knowing the max aperture. It will display -- rather than an f number, and I have to power cycle. It typically happens after the camera sleeps. Maybe it doesn't supply enough power to the adapter to hold the lens info.

Interesting. Thanks for the info. I haven't noticed any issues with max aperture yet but I have noticed that 1.8 is displayed as 1.7 on the Sony for some reason. The Sony cameras seem to be full of weird issues.

I am making the assumption it doesn't know max aperture and thus gets confused based on how you have to "teach" it 3rd (4th?) party glass like Tamron. It needs to learn max aperture before it can properly focus (which is done wide open). I assume once it loses info about an attached lens it needs to reboot. Could be a different reason entirely, but the symptom and solution is consistent: display -- for aperture -> reboot.

The display thing I think has I do with the Sony set for 1/2 stops, not 1/3.

A funny thing I noticed is that with my EF 16-35 f4L IS, my exif data reads the Sony FE 16-35 OSS. No clue whether that's the camera's doing or the adapter's.