Author Topic: Preview resolution is thumbnail  (Read 2089 times)

Offline Boatguy

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Preview resolution is thumbnail
« on: January 31, 2014, 08:35:36 PM »
System: MacBook Pro Retina + Thunderbolt 27" display  OSX 10.9.1  PM 5 / 15277

I had this problem before so I'm not sure if it's pilot error or a bug.

The Preview for raw (NEF) files is just the thumbnail resolution, not full resolution.

Preferences are:

High DPI Display Quality:  Best

Enable Raw rendering ON (using Apple ImageIO)
Raw + JPG:  Render RAW for Preview if possible
Raw: Render RAW for Preview if possible

So why am I seeing only thumbnail resolution?





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Offline Kirk Baker

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Re: Preview resolution is thumbnail
« Reply #1 on: January 31, 2014, 11:11:51 PM »
Russ,

System: MacBook Pro Retina + Thunderbolt 27" display  OSX 10.9.1  PM 5 / 15277

I had this problem before so I'm not sure if it's pilot error or a bug.

The Preview for raw (NEF) files is just the thumbnail resolution, not full resolution.

Preferences are:

High DPI Display Quality:  Best

Enable Raw rendering ON (using Apple ImageIO)
Raw + JPG:  Render RAW for Preview if possible
Raw: Render RAW for Preview if possible

So why am I seeing only thumbnail resolution?

What happens if you view the same NEF file with the Preview application?  Does it show a small image?

Unless you really like the Apple ImageIO rendering then I suggest always using the embedded JPEG previews for your RAW files.  Switching your preferences to use JPEGs in both cases should also make Photo Mechanic far more responsive.

-Kirk

Offline Boatguy

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Re: Preview resolution is thumbnail
« Reply #2 on: February 02, 2014, 11:48:55 AM »
Found the problem.  These are some old photos and it was from my wife's old Nikon point/shoot (5700); the raw format is not supported by Apple.

BTW, the performance of rendering raw for Previews on the MBPr is no problem.  I remember testing an early version of PM for the retina display and there was a considerable lag, but that's no longer an issue.