Yes - I'm sure it's QuickLook related. According to Apple Developer, QL is responsible for the Cover Flow in Finder - and this isn't working for PEF

Googling for the issue in Lion, it appears that Sony ARW files are also affected.

I'm still looking
Matt

Thanks Don... but the link I first gave ( http://support.apple.com/kb/HT5371 ) shows that ML does support the PEF (but not K-01 and K-30)

Have been digging around in the "qlmanage" command line... It seems something in QL isn't rendering the thumbnails for PEF files. Trying to find out how it's linked together

Matt

Well, PEF previews should work in Lion & ML.
Some suggest running a Repair Disk Permissions (using Disk Utility) and that often fixes icon preview problems.

Just trying it and will report back...
Matt

I've just upgraded from Snow Leopard to Mountain Lion and looks like DNG files are previewed in icon form, and coverflow, but none of my PEFs are! (even going back to *ist-D days all the way up to K5)

Just Googling and checking whether any other RAW formats are previewed in icon form.
Edit: http://support.apple.com/kb/HT5371 - should support all the PEF file formats, maybe not the 645D.
Edit: Tried Nikon .NEF, and Canon .CR2 raw formats and these preview fine! Looks like it's just PEF!!! Perhaps there's something left-over from SL...

...I haven't done the Software Updates on these machines (now works through the AppStore)... that may have something to do with it

To be honest, it's not something I've ever used (using LR + Picasa) so I cannot remember if it worked or not in Snow Leopard!

Matt

See page 80 to 82 of the manual.
For HDR, I usually use 3 frames 2Ev apart, or 5 frames, 1Ev apart.
If you shoot JPG, use 1Ev or even 0.5Ev steps.
If you shoot RAW, you can use 1Ev or 2Ev steps (because RAW will capture finer grained tonal ranges)

What you then do is take those shots and combine them in HDR software... then tone-map to produce a single image. It's important that if you shoot RAW that you must use the same development settings for all frames and preferably use a flat-tone curve in the RAW processor

HTH!
Matt

My 'day job' is electronic design & firmware I've worked in the electronics industry for well over 25 years

It depends very much on the circuit design. Any design has limits and bounds - the wider the range, the more complex the circuit and more expensive. For example, it's quite possible to have a separate circuit for the DC power input, perhaps with a diode for protection (which gives between 0.3V and 0.7V drop, depending on the type of diode). Such diode protection is unlikely to be present in a battery circuit because you're wasting power, and it's impossible to put the battery in back to front

I agree that something's amiss - and I wonder if it's my charger... 8.3V fully charged from a 7.4V Li-Ion isn't that brilliant, IMO. And, I've noticed that if I put the camera in LV for a while and run down the battery a tad then the mirror flap doesn't occur.

My hunch is that the firmware is going a bit nuts - perhaps thinking that the mirror isn't in the right position, because some feedback into the CPU is slightly out of bounds.


From what I've read, there may be at least one other cause of this mirror flap issue... but it seems batteries are one of them.

What's your charger?

Matt

Must check my settings... because the last HDR set I did were bracketed on ISO (which is not what I wanted!!)

Matt

My feeling is that the batteries are gradually being overcharged. 8.29V for a nominal 7.4V Lithium Ion is not quite right, and I can imagine that things may go awry at those levels.

My K5 never had a problem before either
Matt

After a long break, the K5 started with the odd mirror flap - even unattended!
Measured the battery at 8.29V
The times it has done it in the past couple of days, just removing and putting back the battery solved the problem...

...going to investigate chargers now...

EDIT: re-read the article and the diagram is just a sample diagram (and a bad one for Lithium Ions too!) - http://ricehigh.blogspot.co.uk/2012/07/new-pentax-lithium-rechargeable-format.ht...
Would be interesting to see what the Pentax one is... The K10D charger is a fairly complex charger made by Tamura (a LOT more complex than Ricehigh's sample :roll

Matt

Looks like a date code to me May 2010
Matt