LISTSERV mailing list manager LISTSERV 16.0

Help for ARSCLIST Archives


ARSCLIST Archives

ARSCLIST Archives


ARSCLIST@LISTSERV.LOC.GOV


View:

Message:

[

First

|

Previous

|

Next

|

Last

]

By Topic:

[

First

|

Previous

|

Next

|

Last

]

By Author:

[

First

|

Previous

|

Next

|

Last

]

Font:

Proportional Font

LISTSERV Archives

LISTSERV Archives

ARSCLIST Home

ARSCLIST Home

ARSCLIST  November 2014

ARSCLIST November 2014

Subject:

Re: potentially interesting new computer/scanner concept

From:

Tom Fine <[log in to unmask]>

Reply-To:

Association for Recorded Sound Discussion List <[log in to unmask]>

Date:

Wed, 5 Nov 2014 12:05:14 -0500

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (66 lines)

> I do use a digital camera for photographing album covers, and large
> posters, etc but I admit that I take pictures outside on cloudy days. No
> artificial light or refection issues that way.

Hi Paul:

What do you do to avoid perspective distortion (non-squareness)? It seems like, for a poster, you'd
have to have the camera up so high that there would be some shadowing or reflection in a poster with
any gloss to it.

I would like to know more about this method because I have some large-scale schematics I'd love to
digitize in some other way than trying to tile together 12x18 segments.

My wife had suggested something similar to what I think you are saying, using a tripod and spreading
the document out on our deck, holding the corners down with weights. The problem is, no matter where
I put the tripod, there was perspective distortion because the lens wasn't centered over the center
of the document. That is the main advantage for a photo stand, centering the camera over the image.

I wonder if it's possible to rig up a mechanism whereby a digital camera "flies" over large
documents like posters or schematics and uses built-in panorama software to stitch the segments
together? The segments should stitch easily due to rigging a mechanism where the camera is kept at a
static height and static vertical angle to the document, moving on a controlled horizontal path.

-- Tom Fine

----- Original Message ----- 
From: "Paul Urbahns" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, November 05, 2014 10:00 AM
Subject: Re: [ARSCLIST] potentially interesting new computer/scanner concept


> >
>> > The buzz on the street is that dedicated scanners are going away now
>> > that we have 24 and 36 MP DSLRs. Most of the people doing document
>> > imaging are using DSLRs or mirrorless digital cameras these days, it
>> > seems.
>
>
> I hope people start using tripods on the cameras, we used to use "copy
> stands" in the 35mm days.
>
> I ran into this situation twice recently in research.
>
> I have an old high school band record album from 1966, its a personal
> favorite of mine from my high school. I recently ask the school library for
> a copy of the yearbook pages dealing with the band and they sent fuzzy
> camera shots because, "We don't have scanners anymore" according to a
> library staff member. I don't know if that means just the library or the
> whole school.
>
> The second situation is because I volunteered to read old time radio
> scripts from the 30s for which there are no recordings existing and
> summarize the characters and plot. The person (a noted author) photographed
> the scripts at an archive with a camera. I suspect that was what was
> allowed, a digital camera.
>
> I do use a digital camera for photographing album covers, and large
> posters, etc but I admit that I take pictures outside on cloudy days. No
> artificial light or refection issues that way.
>
> Paul Urbahns
> Radcliff, Ky
>
>

Top of Message | Previous Page | Permalink

Advanced Options


Options

Error during command authentication.

Error - unable to initiate communication with LISTSERV (errno=104). The server is probably not started.

Log In

Log In

Get Password

Get Password


Subscribe or Unsubscribe

Subscribe or Unsubscribe


Archives

ATOM RSS1 RSS2



LISTSERV.LOC.GOV

CataList Email List Search Powered by the LISTSERV Email List Manager