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-   -   Scanning glass mount slides (http://www.photobanter.com/showthread.php?t=12625)

ITMA September 12th 04 10:15 AM

Scanning glass mount slides
 
Presumably a film scanner cannot cope with a glass mounted slide, especially
the 'anti-newton' types which of course give a noticeable blurring when
projected so would no doubt completely throw a scanner ...? Any
experiences?



Gordon Moat September 12th 04 10:35 PM

ITMA wrote:

Presumably a film scanner cannot cope with a glass mounted slide, especially
the 'anti-newton' types which of course give a noticeable blurring when
projected so would no doubt completely throw a scanner ...? Any
experiences?


I have done a little bit of experimenting with Gepe glass mounts, and drum
scanning oil. The combination are then used in a film scanner. There is no
patterning problem, the colours are easier to accurately capture, and the
dynamic range seems to improve slightly. The only problem is this is a slow
process. Without the drum scanning oil, I think the only reason to use a glass
mount would be if the original transparency has curled badly.

Ciao!

Gordon Moat
A G Studio
http://www.allgstudio.com/gallery.html Updated!


Gordon Moat September 12th 04 10:35 PM

ITMA wrote:

Presumably a film scanner cannot cope with a glass mounted slide, especially
the 'anti-newton' types which of course give a noticeable blurring when
projected so would no doubt completely throw a scanner ...? Any
experiences?


I have done a little bit of experimenting with Gepe glass mounts, and drum
scanning oil. The combination are then used in a film scanner. There is no
patterning problem, the colours are easier to accurately capture, and the
dynamic range seems to improve slightly. The only problem is this is a slow
process. Without the drum scanning oil, I think the only reason to use a glass
mount would be if the original transparency has curled badly.

Ciao!

Gordon Moat
A G Studio
http://www.allgstudio.com/gallery.html Updated!


Tony September 13th 04 03:54 AM

Take tehm out of the glass mount while scanning. Unless they have stuck, of
course.

--
http://www.chapelhillnoir.com
home of The Camera-ist's Manifesto
The Improved Links Pages are at
http://www.chapelhillnoir.com/links/mlinks00.html
A sample chapter from "Haight-Ashbury" is at
http://www.chapelhillnoir.com/writ/hait/hatitl.html

"ITMA" wrote in message
...
Presumably a film scanner cannot cope with a glass mounted slide,

especially
the 'anti-newton' types which of course give a noticeable blurring when
projected so would no doubt completely throw a scanner ...? Any
experiences?





Tony September 13th 04 03:54 AM

Take tehm out of the glass mount while scanning. Unless they have stuck, of
course.

--
http://www.chapelhillnoir.com
home of The Camera-ist's Manifesto
The Improved Links Pages are at
http://www.chapelhillnoir.com/links/mlinks00.html
A sample chapter from "Haight-Ashbury" is at
http://www.chapelhillnoir.com/writ/hait/hatitl.html

"ITMA" wrote in message
...
Presumably a film scanner cannot cope with a glass mounted slide,

especially
the 'anti-newton' types which of course give a noticeable blurring when
projected so would no doubt completely throw a scanner ...? Any
experiences?





Ed Blagden September 13th 04 12:19 PM

Gordon Moat wrote in message ...
ITMA wrote:

Presumably a film scanner cannot cope with a glass mounted slide, especially
the 'anti-newton' types which of course give a noticeable blurring when
projected so would no doubt completely throw a scanner ...? Any
experiences?


I have done a little bit of experimenting with Gepe glass mounts, and drum
scanning oil. The combination are then used in a film scanner. There is no
patterning problem, the colours are easier to accurately capture, and the
dynamic range seems to improve slightly. The only problem is this is a slow
process. Without the drum scanning oil, I think the only reason to use a glass
mount would be if the original transparency has curled badly.

http://www.allgstudio.com/gallery.html Updated!


I'm thinking about getting a 35mm film scanner to deal with my
slides... approaching the digital age at a cautious pace!

One newbie question, which I have never seen the answer to: does the
autofocus feature on film scanners deal with moderately warped /
curled slides?

Thanks

Ed

Mark Roberts September 13th 04 01:01 PM

On 13 Sep 2004 04:19:15 -0700, (Ed
Blagden) wrote:

I'm thinking about getting a 35mm film scanner to deal with my
slides... approaching the digital age at a cautious pace!

One newbie question, which I have never seen the answer to: does the
autofocus feature on film scanners deal with moderately warped /
curled slides?


It gets one part of the curled slide in focus.
On the better scanners you can choose the focus point and decide
between having the center or the edge in focus. It is possible to do
separate scans using various focus points and combine the results in
Photoshop, but it's a considerable amount of work.


Mark Roberts September 13th 04 01:01 PM

On 13 Sep 2004 04:19:15 -0700, (Ed
Blagden) wrote:

I'm thinking about getting a 35mm film scanner to deal with my
slides... approaching the digital age at a cautious pace!

One newbie question, which I have never seen the answer to: does the
autofocus feature on film scanners deal with moderately warped /
curled slides?


It gets one part of the curled slide in focus.
On the better scanners you can choose the focus point and decide
between having the center or the edge in focus. It is possible to do
separate scans using various focus points and combine the results in
Photoshop, but it's a considerable amount of work.


Mark Roberts September 13th 04 01:01 PM

On 13 Sep 2004 04:19:15 -0700, (Ed
Blagden) wrote:

I'm thinking about getting a 35mm film scanner to deal with my
slides... approaching the digital age at a cautious pace!

One newbie question, which I have never seen the answer to: does the
autofocus feature on film scanners deal with moderately warped /
curled slides?


It gets one part of the curled slide in focus.
On the better scanners you can choose the focus point and decide
between having the center or the edge in focus. It is possible to do
separate scans using various focus points and combine the results in
Photoshop, but it's a considerable amount of work.


Gordon Moat September 14th 04 01:15 AM

Ed Blagden wrote:

Gordon Moat wrote in message ...
ITMA wrote:

Presumably a film scanner cannot cope with a glass mounted slide, especially
the 'anti-newton' types which of course give a noticeable blurring when
projected so would no doubt completely throw a scanner ...? Any
experiences?


I have done a little bit of experimenting with Gepe glass mounts, and drum
scanning oil. The combination are then used in a film scanner. There is no
patterning problem, the colours are easier to accurately capture, and the
dynamic range seems to improve slightly. The only problem is this is a slow
process. Without the drum scanning oil, I think the only reason to use a glass
mount would be if the original transparency has curled badly.

http://www.allgstudio.com/gallery.html Updated!


I'm thinking about getting a 35mm film scanner to deal with my
slides... approaching the digital age at a cautious pace!

One newbie question, which I have never seen the answer to: does the
autofocus feature on film scanners deal with moderately warped /
curled slides?


No, and the autofocus is not always the best choice for certain slides. Some scanners have a
fixed DoF that covers a certain width of film, and might actually do okay with a slightly
curved piece of film. It is better to find a scanner that lets you manually adjust the focus.
Some films will give much better results by adjusting the focus slightly before, or slightly
after, the point that the autofocus suggests.

As a newcomer to this technology, you should also know that the default settings are not
always the best choice. There is also an issue of the scan preview window not always giving an
accurate looking (colour) preview, though better software often is very close. There is
VueScan, which is fairly low cost, and works with many more common scanners, and at the high
end is SilverFast. SilverFast is actually more capable, though much more expensive. Also,
SilverFast will not work with all scanners.

At the professional level, the idea is to get an extremely accurate scan, and not have any
need for adjustments in PhotoShop (or whatever editor you use). Some film scanners have a good
enough range of adjustments to allow that, but many do not, thus requiring adjustments to the
scanned file. You might be surprised that some lower cost scanners are very good, though
sometimes let down by the included software. Anyway, best of luck with your search.

Ciao!

Gordon Moat
A G Studio
http://www.allgstudio.com/gallery.html Updated!



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