Downloading full pictures from premium service

hello,
im trying to download a full sized picture from photoshelter (for personal use), a premium photo hosting service much like gettyimages. the costs are quite exorbitant (ranging from $400+ for a picture).
on the site itself, i search for an image (eg ‘nature’):
http://www.photoshelter.com/lattice/search/nature?is_priced_prints=f&is_priced_personal_use=f&is_priced_royalty_free=f&is_priced_rights_managed=f&orientation=
when i click on the third one (the blue-ish picture of ducks in water), i notice that for less than a second a much higher resolution picture is shown (look at the brances of the trees) and then changes to a low quality, watermarked sample. is there any way to extract that higher quality picture? i’ve tried viewing the source, using ff inspector, etc but i can’t seem to be able to follow what exactly happens in that initial moment. maybe it isn’t the full image but rather a ~1600×800 sample.
i’m sure this is true of all pictures on this site but to take notice, a picture with thin lines like hair or brances of trees should be used to most clearly see what i’m talking about.
thank you
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Answer #1
can anyone help with extracting images or site crawling?