Thanks. Always good to check the assumptions. Candace should be happy.
Chuck Norcutt
On 1/29/2012 12:44 AM, Moose wrote:
> On 1/28/2012 4:45 PM, Chuck Norcutt wrote:
>> ... the main discussion which was that, without an embedded
>> JPEG to work with, FastStone was ultimately obligated to convert ORFs
>> along with its attendant performance impact in order to be able to see
>> anything at all.
>
> Except that's not true. You've made a possibly reasonable assumption based on
> a report from someone else, but not
> checked it.
>
> I just grabbed an .ORF file from the web. It's from an E-620. It has a full
> size of 4096x3084. Embedded in it are two JPEGs:
> Preview 1: image/jpeg, 160x120 pixels, 7178 bytes
> Preview 2: image/jpeg, 3200x2400 pixels, 1115932 bytes
>
> Faststone acts with this Raw file just as I described with CR2 files. If FS
> seems slow opening a folder of ORFs and
> displaying the thumbnails, it's much the same with CR2s on my machine.
>
> The embedded JPEG in this example is rather large. Perhaps that is a factor
> in speed of extraction and display?
> Certainly it helps explain why Oly Raw files are so large.
>
> I think I may have just had a brainstorm! The thumbnails in CR2 files are
> also 160x120. I had FS set for 120x90 thumbs.
> I may have been forcing it to access the larger preview image and generate a
> thumbnail from it for each file. No wonder
> it takes a while for a large folder!
>
> I just changed my FS settings to 160x120 thumbs. Now, folders of CR2s start
> showing thumbs immediately and move briskly
> along, at least with the small preview window closed.
>
> Now to go rest and let the neurons recover. :-)
>
> Preview Me Moose
>
--
_________________________________________________________________
Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
Archives: http://lists.thomasclausen.net/mailman/private/olympus/
Themed Olympus Photo Exhibition: http://www.tope.nl/
|