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I've heard of software -- I don't know if such is available for the Canon EOS -- that will take 
several exposures varying the depth of field, and then blend them into one image. I think it's 
possible to choose how the software presents the image -- either the sharpest focus or most depth of 
field or whatever. As I said, not sure if such features are integrated into the Canon EOS USB 
software.

When I first got my Nikon D70 several years ago, I took a class Nikon held about the DSLR cameras of 
that time and about their software and about digital SLR photography in general. One of the things 
they covered was using their then-current software via USB cable to automate batch photography and 
other things. I think the approach William is taking, and Marie is thinking about taking, is bound 
to be faster than flatbed scanning for 3D objects such as cylinders or box sets or even tape boxes, 
as long as you can set the shots up correctly, quickly. With something flat like a record that you 
want to scan the label, I'm not sure if a modern flatbed scanner won't be faster and more foolproof. 
I have an old Epson flatbed scanner, large format, and I can whip through LP records as quickly as 
the scanner hardware and software will do the job. I think modern scanners connected to modern 
faster computers will do the job much more quickly.

-- Tom Fine

----- Original Message ----- 
From: "John Schroth" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, March 02, 2015 6:33 PM
Subject: Re: [ARSCLIST] Photographic capture of disc information


> Hello William
>
> Interesting to read your workflow. Very well laid out. One suggestion. You mention the difficulty 
> in having the whole image area in focus. I might suggest adding the diffuse lighting if you can 
> find the budget. Chances are the "aperture" in your DSLR is opening to a very low number f-stop to 
> let as much ambient light in as possible, for the correct exposure. If you increase the exposure 
> time, or add more light, you can stop "down" to a higher number f-stop. The higher the number, the 
> better the depth of field and the more in focus everything will be in the picture. You might 
> already know this, but if you have not tried this, it might be worth the time to experiment a bit.
>
> Regards,
>
> John Schroth
>
>
> On 3/2/2015 5:30 PM, William Vanden Dries wrote:
>> Dear Marie,
>>
>> I have some experience photographing recordings with a set up that includes
>> a copy stand and Digital SLR with software and a USB connection. The
>> non-profit I chair, the Audio Preservation Fund, photographs each
>> collection item we receive before donating it to an institution. This
>> includes the disc (or cylinder, cassette, etc) as well as the cover,
>> sleeve, and any inserted materials. When photographing discs, I image the
>> entire disc instead of focusing in on just the label.
>>
>> The equipment and software I use include a Canon EOS Mark II camera, a copy
>> stand and camera mount made by Kaiser (with an additional homemade black
>> background surface), and the Canon EOS Utility software to control the
>> camera through the USB connection. Unfortunately, we couldn't afford the
>> diffuse lighting options, but we make do with ambient room lighting through
>> trial and error placement of the copy stand.
>>
>> As far as a workflow, I generally photograph the items in batches that are
>> closely related, so that I can use the automated file naming options in the
>> software, followed by batch file renaming using Bulk Rename Utility (
>> http://www.bulkrenameutility.co.uk/Main_Intro.php). Our file naming
>> structure is likely different from what you will need, but the file naming
>> options in the software are pretty flexible. I also try to photograph
>> different parts of each item in the same order
>> (Cover-->Sleeve-->Disc-->Inserts), so I can make sense of each item's
>> relationship to it's packaging when viewing and editing a large batch of
>> photographs later.
>>
>> To reduce editing time, I use the grid overlay in the software to position
>> each disc in the same spot, which allows for batch cropping (I use
>> IrfanView for this). This works less effectively for inserts and sleeves
>> because they are not as uniform in size, but the grid still allows me to
>> straighten the item on the copy stand base so I don't have to rotate the
>> image during editing.
>>
>> One drawback I have experienced with this method includes the ability of
>> the SLR to focus on the entire object. If I focus on the center of a record
>> cover, the edges tend to be a little out of focus. I experienced this when
>> imaging manuscript items on a large-format Digibook as well, which also
>> uses a mounted SLR. I expect this wouldn't be an issue if the objects were
>> scanned on a large-format flatbed scanner. However, I find it takes much
>> less time per image using a copy stand instead of a flatbed scanner, and
>> the focus issues are relatively minimal.
>>
>> Another drawback is that (as far as I can tell), I cannot capture images
>> with this Canon Mark II/software combination in uncompressed TIFF format.
>> For an uncompressed image, I need to capture in RAW and then convert. If
>> you are not as worried about compression, there is a high resolution JPEG
>> option which also looks very good.
>>
>> Lastly, some discs are difficult to find a brightness/contrast/color
>> balance that results in an accurate representation of both the label and
>> the grooved part of the disc. This problem might be alleviated if you
>> install the diffuse lighting. I would be very interested to know if that's
>> the case.
>>
>> I'm happy to answer any other questions you have about our set up and
>> workflows. If you would like to see some pictures that resulted from our
>> set up, our website (audiopreservationfund.org) has thousands of images of
>> the collection items we receive. All of the discs, cylinders, and cassettes
>> that have pictures available were photographed with the set up I described
>> above.
>>
>> And it may be a long shot, but if you see any recordings on our site that
>> you would like to add to your collections at Ngā Taonga Sound & Vision,
>> we'd love to donate them to you! (That goes for any other libraries,
>> archives, and museums out there, too.)
>>
>> Best,
>> William
>>
>>
>>
>> William R. Vanden Dries
>>
>> Chairman, Audio Preservation Fund
>> Research Engineering Scientist Associate I, Applied Research Laboratories
>> [log in to unmask]
>> 512-731-9616
>>
>> On Mon, Mar 2, 2015 at 3:30 PM, Marie O'Connell <[log in to unmask]> wrote:
>>
>>> Dear colleagues,
>>>
>>>
>>>
>>> Our preservation committee is scoping out a proposal for photographic
>>> capture of disc label information and also possibly capture of the disc
>>> surface and covers.
>>>
>>>
>>>
>>> We are looking at using a copy stand with diffuse lighting and run the
>>> camera via USB software. We are also considering incorporating OCR software
>>> somewhere in the process.
>>>
>>>
>>>
>>> Is anyone else doing this?
>>>
>>> What equipment, software and work flow are you using?
>>>
>>>
>>> We would appreciate your wisdom here.
>>>
>>>
>>> Regards
>>>
>>>
>>>
>>>
>>>
>>>
>>> *Marie O'Connell*
>>>
>>> Audio Conservator
>>>
>>> *Ngā Taonga Sound & Vision*
>>> 324 Cashel Street  · PO Box 909  · Christchurch 8140
>>>
>
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