Actual source: http://www.imaging-resource.com/news/2013/12/27/on-ice-100-y...
If you'd like to see the images as large as they are (warning: SWF): http://www.nzaht.org/assets/gallery6/flash/slideshow.swf?r=8...
If you'd like to see the images as large as they are (warning: SWF): http://www.nzaht.org/assets/gallery6/flash/slideshow.swf?r=8...
Also, there is a description of the discovery at http://www.nzaht.org/content/library/Century_old_Antarctic_i... [pdf].
From the press release about the images:
Background to the conservation process
The photographs found in Captain Scott’s expedition base at Cape Evans, Antarctica required specialist conservation treatment. The Antarctic Heritage Trust (NZ) engaged Photographic Conservator Mark Strange to undertake the painstaking task of separating, cleaning (including removing mould) and consolidating the cellulose nitrate image layers. Twenty-two separate sheets were revealed and sent to New Zealand Micrographic Services for scanning using a Lanovia pre-press scanner. The digital scans were converted to digital positives.
So it at least sounds like they would have captured most of the available detail.