Hi Matt,
That’s really helpful, many thanks.
Becky
From: Matt Faber <[log in to unmask]<mailto:[log in to unmask]>>
Date: Wednesday, 20 August 2014 11:11
To: Rebecca Brumbill <[log in to unmask]<mailto:[log in to unmask]>>, "[log in to unmask]<mailto:[log in to unmask]>" <[log in to unmask]<mailto:[log in to unmask]>>
Subject: RE: Tiffs v Jpegs
Hi Rebecca,
I think it would be prudent to consider camera capture for trans and negs as scanner manufactures are reducing support for their products. Fuji is considering, or has stopped support for their Lanovia scanners. With all these sorts of considerations it's probably best to start at the top and work down so I would be looking at Mamiya Leaf backs. Light boxes need to have a constant light source and be of a known colour temperature. The only issue I'm aware of with this process is reflections from the glass surface of the negative. Using cameras is certainly more time efficient but potentially more expensive than scanners.
Hope that helps,
Matt
Matt Faber
Advisor - Image Digitisation
T 0203 697 5872
Twitter www.twitter.com/jiscdigital<http://www.twitter.com/jiscdigital>
One Castlepark, Tower Hill, Bristol, BS2 0JA
jisc.ac.uk
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-----Original Message-----
From: Archivists, conservators and records managers. [mailto:[log in to unmask]] On Behalf Of Rebecca Brumbill
Sent: 20 August 2014 09:00
To: [log in to unmask]<mailto:[log in to unmask]>
Subject: Re: Tiffs v Jpegs
Hello,
As far as file format is concerned, we store everything as .tif (uncompressed), the scanner produces tifs, and we convert all the files captured on the Nikon camera from raw. This is for preservation purposes, the minimum file size being 50mb. We do however store a separate low resolution jpeg archive for use on web, powerpoint, reference etc. That may change as we implement a new Image Management System which will create jpgs on the fly from our Tif archive.
While we are on the subject I wondered if I could digress slightly and ask what equipment people use to digitise glass plates and large / medium format transparencies. Typically we scan these on a flat bed scanner, but have recently been discussing a camera set up with a light box. Has anyone come across any problems concerning the latter and would you say that it is more time efficient using camera instead of scanner?
Many thanks, I look forward to your replies.
Rebecca Brumbill
Image Management Officer / Swyddog Rheoli Delweddau Photography Department / Adran Ffotograffiaeth Amgueddfa Cymru National Museum Wales Cardiff / Caerdydd
CF10 3NP
Tel / Ffon: 029 2057 3136
E-mail: [log in to unmask]<mailto:[log in to unmask]>
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On 20/08/2014 07:37, "Dave Caroline" <[log in to unmask]<mailto:[log in to unmask]>> wrote:
>I agree with Darren Ingram that the resolution matters, I have seen far
>too much put through a bi-level process to reduce scan size, this is
>similar to the loss of detail when microfilm was used. I use a grey
>scale scan on text documents so my scans are larger but then use jpeg
>for the compression.
>
>Dave Caroline
>
>Contact the list owner for assistance at
>[log in to unmask]<mailto:[log in to unmask]>
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>For information about joining, leaving and suspending mail (eg during a
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YMWADIAD
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Safbwyntiau personol yr awdur yw'r safbwyntiau a fynegir yn y neges hon, ac nid ydynt o reidrwydd yn cynrychioli safbwyntiau'r Amgueddfa.
Nid yw'r Amgueddfa'n atebol am unrhyw wallau, llygredd neu esgeulustod a allai godi wrth drosglwyddo'r neges hon, felly na ddibynnwch ar y cynnwys heb geisio cadarnhad ysgrifenedig yn gyntaf.
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YMWADIAD
Mae pob neges ebost a anfonir i neu gan Amgueddfa Cymru yn cael ei
sganio gan systemau diogelwch awtomatig er mwyn rheoli negeseuon
digymell a dileu cynnwys amhriodol neu beryglus. Cafodd y neges hon ei
sganio am firysau cyn ei hanfon, ond dylech hefyd fodloni'ch hun bod y
neges, a phob atodiad ynddi, yn rhydd o firysau cyn ei defnyddio gan
nad yw'r Amgueddfa'n derbyn cyfrifoldeb am unrhyw golled neu ddifrod o
ganlyniad i agor y neges neu unrhyw atodiadau. Gall y neges hon ac
unrhyw ffeiliau a atodir ynddi gynnwys gwybodaeth gyfrinachol a
fwriadwyd ar gyfer y derbynnydd yn unig. Os ydych chi wedi derbyn y
neges trwy gamgymeriad, rhowch wybod i ni a chofiwch ddileu'r neges.
Safbwyntiau personol yr awdur yw'r safbwyntiau a fynegir yn y neges
hon, ac nid ydynt o reidrwydd yn cynrychioli safbwyntiau'r Amgueddfa.
Nid yw'r Amgueddfa'n atebol am unrhyw wallau, llygredd neu esgeulustod
a allai godi wrth drosglwyddo'r neges hon, felly na ddibynnwch ar y
cynnwys heb geisio cadarnhad ysgrifenedig yn gyntaf.
DISCLAIMER
Email to and from Amgueddfa Cymru - National Museum Wales is scanned
by automated security systems to control unsolicited messages and
eliminate inappropriate or dangerous content. This message was scanned
for viruses before transmission, but you should also satisfy yourself
that the message, and all attachments, are virus-free before use as
the Museum accepts no responsibility for any loss or damage that might
arise from opening the message or any attachments. This message and
any files transmitted with it may contain confidential information
intended only for the recipient. If you received it by mistake please
inform us and delete the message. The views expressed in this message
are the personal views of the author and may not necessarily represent
those of the Museum. The Museum accepts no liability for any errors,
corruption or omissions that might arise in transmission of this
message, so please do not rely on the contents without seeking
confirmation in writing.
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