Hi Katherine
If you are planning on digitally archiving your material professionally at
any point I would suggest you contact any repository/archive you intend to
deposit your data with as they will have guidelines. At ADS we use tiff as
our long term preservation format, so i would recommend that for storage.
If you are just planning on storing your data yourselves I'd reiterate
Jason's comment on backing up, but remember backup/storage is not long term
preservation.
Katie Green
Archaeology Data Service
On 30 March 2016 at 14:51, Jason <[log in to unmask]> wrote:
> These days, storage is cheap and getting cheaper, so cost of storage should
> not be a consideration. Especially with the relatively small sizes of image
> files. EG a 1TB external HDD can be bought for less than £50. 3TB for less
> than £150.
> If you run out of storage, buy some more. Obviously, backing up everything
> (not just to cloud storage) is essential.
>
> A TIFF will actually be a larger file size than the corresponding RAW file.
> As TIFF is uncompressed, there will be no loss of quality. TIFFs can be
> viewed on any computer without extra software unlike RAW files, so I would
> go with TIFF. Start with RAW and convert to TIFF if you need to do any
> adjustments to the images.
>
> You would get far better results using a good flatbed scanner for slides
> and
> glass plates.
>
> Images for the web site should be converted to JPEG or PNG. There will be
> some loss of quality, but web browsers cannot display TIFF or RAW images as
> standard and file sizes/download overhead will be far smaller.
>
> Thank You
> Jason Hurley
> Crumplezone Multimedia
> 01257 416596
> http://www.crumplezone.co.uk
>
>
>
>
> on 30/03/2016 14:04, Katherine West at
> [log in to unmask]
> wrote:
>
> > Hello,
> >
> > I was hoping some of you might be able to give me some advice.
> >
> > I am working on a HLF project in the New Forest aiming to create a
> website
> > which will be a portal to information on the New Forest. This includes
> > digitising a large part of the New Forest Centre's museum and library
> > collection to be uploaded to the website as well as forming a high
> quality
> > digital archive.
> >
> > We have purchased a digital SLR camera and will be using it to digitise a
> > range of objects, from maps to glass plate negatives and 35mm slides. We
> have
> > a limited budget and will be storing digitised copies on the cloud and an
> > external hard drive.
> >
> > We are currently discussing whether we should be saving the RAW files or
> > whether TIFF files will be sufficient for a master digital archive. Our
> > concern is that RAW files might take up too much space on our storage
> system,
> > but also that we should be capturing the digital copies with as much
> detail
> > and information as possible for the future.
> >
> > Has anyone else had any experience of this? Do other organisations often
> use
> > RAW files instead of TIFF? What are the advantages either way? Any advice
> > would be a huge help! Thank you.
> >
> > Katherine.
> >
> >
> > Katherine West
> > Digitisation Officer
> > New Forest Knowledge Project
> > Please note: My working days are Wednesday - Friday. I may not be able to
> > respond to emails immediately outside of these days. Thank you for your
> > understanding.
> > New Forest Centre
> > Lyndhurst
> > Hampshire
> > SO43 7NY
> >
> > Email:
> > [log in to unmask]<mailto:
> [log in to unmask]
> > g.uk>
> > Telephone: 023 8028 6150
> > Website: www.newforestcentre.org.uk<http://www.newforestcentre.org.uk/>
> > Search for us on Facebook and follow @NFCentre on Twitter
> >
> >
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