OM System 90mm macro : exifs for focus limiter switch

[FrancoisC]

Hello

does someone know if this is possible to see in EXIF or other what was the position of the focus limiter switch ?

S-Macro, 0,25-0,50, 0,25-∞

 

Ideally in Lightroom.

I check also OM Worspace and Image-Exiftool tool, but did not thing anything relevant...

 

 

 

[Chris Ross]

I had a look in Picture information extractor, which seems to include all of the mode information from Olympus cameras and I couldn't find it there.  It seems to reliably extract the focus distance both in metres and in focus step count, which you could probably use to infer the mode:

 

Below is a the reading from a shot taken on full range mode:

 

 

It shows different focus step counts for near and infinity - so it looks like you could infer it from those readings?

 

 

[FrancoisC]

Thanks Chris.

I will make some tests to see how values are changing.

[FrancoisC]

Done some tests with various settings, and it seems that the easiest way to identify the S-Macro position is the "Max aperture" exif tag, with a value of 5.0 at S-Macro and 3,6 for others.

 

I will try to find some time to post more details