How can I export a preview when the original file is offline?

i moved aperture lightroom 1 main feature in mind. ability search , view previews when external storage originals unattached.

 

my library quite large, around 200,000 photographs. master files stored externally on 2tb external hard drive, decent resolution preview kept locally on macbook pro.

 

i love feature. rare need full resolution images, need able search whole library time when out in field. don't intend take external drive me, or use other capture originals camera , immediate basic retouching. once big files stored on drive, need access them again, , hoping work previews big enough.

 

i have come across problem potential deal breaker , may mean need go back aperture if can't find solution or decent workaround. won't have external drive me work out on location of time , need send photographs @ no notice. idea grab laptop, quick search of whole library, select photos need , send them client straight away. surprised see lightroom seemingly has no way export previews. seems crazy can view on screen, surely there must way save it?!

 

the work around have thought of far screen grab each image, far perfect step have repeat thousands of times, if have send couple of hundred images, take far long. lack correct filename or metadata.

 

hopefully 1 of lightroom veterans or staff able give me solution.

 

here's hoping. thanks.

look smart previews feature. there's no equivalent in aperture, these highly compressed versions of originals , provide significant offline editing capability.

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