Q: Wrong aspect ratio in browsermode, after import...

And by confirming, that working from a different account still does not fix the problem, we can exclude any settings in your user library as the reason for the wrong aspect ratio.

But he never said he did this. Only that tried a new library in his account. So we still don't know if it is a syste wide problem or confined to his account.

You didn;t try making a new user account and trying it. At least you don;t mention the results in your post.

Then I opened the original library and imported raw images and to my sorrow noticed that the problem still remains.

Sorry to hear that, but it is good to know the result.

There is still Frank's question open, if Aperture also has this problem working from a second user account.

If you do not have a second account, simply create one from the "Users & Groups" system preferences panel  or enable the Guest User account. (to add an user account click the padlock icon to unlock the panel, then click "+" to add an account.)

If you want run Aperture from a second account, you have to quit it in your regular account, before switching between users.

If Aperture should run well from your second account, we will know, that something in your user library is to blame - your presets or preferences, otherwise see my post above.

First of all: Leonie: midnight sun is gone already and I live in south anyway... besides I'm an old man and need the sleep...

I've just been kidding, sorry-  but I enjoyed the long summer nights when I have been to Helsinki for a conference. And trying to get some sleep is the best one can do when being confronted by a tricky debugging problem.

So your experiment with the second user account confirms that not the presets and preferences in your user account are to blame, and neither your Aperture library. Or did you change any of the default settings and copy the Aperture library to your new account?

I cannot tell from your video exactly what the problem is. If I get you right, you are mostly worried about the time needed to render the image in the viewer with the correct aspect ratio when you are browsing and switching between images.

What are your Import settings in the Import preferences panel?

Are you using Camera previews or Standard previews? It could be, that the Camera previews in the raw are having the wrong aspect ratio.

I'll be away from my mac for the rest of the day, but I hope, Frank and and Kirby will return to this thread, when it is daytime in the states.

Regards

Léonie

Teemu -- There is no downside of note.  I never use camera previews.  They allow the user to see the camera preview first, which is a tiny bit faster when importing than waiting for the Aperture-generated Previews.  Imho, they are a no-longer-needed hold-over from when slower processing would mean a delay of minutes when importing.

Your problem, though relatively minor and now resolved, still should not happen.  Did you make sure you have the most recent camera firmware?  If you do, you might file a bug report with Apple, via "Aperture➞Provide Aperture Feedback".