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#1
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Photo quality - onto paper or onto CD?
I am about to buy a colour aerial photo of a sixty square mile area.
The firm supplying these charges more for the image on CD than it does for a printed photograph. Don't ask me why, I've queried it and the differential is vast. Obviously I am considering buying the printed version, scanning it and saving it to CD for future ehancement/enlargement. Will I lose any quality with this conversion? I have a SCSI scanner and Photoshop so I am confident I could get about 1440 dpi. Would I be better off buying a negative and getting a professional to digitize it? |
#2
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Theseeker wrote:
I am about to buy a colour aerial photo of a sixty square mile area. The firm supplying these charges more for the image on CD than it does for a printed photograph. Don't ask me why, I've queried it and the differential is vast. Obviously I am considering buying the printed version, scanning it and saving it to CD for future ehancement/enlargement. Will I lose any quality with this conversion? I have a SCSI scanner and Photoshop so I am confident I could get about 1440 dpi. Would I be better off buying a negative and getting a professional to digitize it? We don't know how much data is on the CD vs. how much may be on the print. My guess is the CD contains more information than the print. BTW what size is the print. An 8x10 is going to be able to hold far less information than a 48x60. -- Joseph E. Meehan 26 + 6 = 1 It's Irish Math |
#3
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Theseeker wrote:
I am about to buy a colour aerial photo of a sixty square mile area. The firm supplying these charges more for the image on CD than it does for a printed photograph. Don't ask me why, I've queried it and the differential is vast. Obviously I am considering buying the printed version, scanning it and saving it to CD for future ehancement/enlargement. Will I lose any quality with this conversion? I have a SCSI scanner and Photoshop so I am confident I could get about 1440 dpi. Would I be better off buying a negative and getting a professional to digitize it? We don't know how much data is on the CD vs. how much may be on the print. My guess is the CD contains more information than the print. BTW what size is the print. An 8x10 is going to be able to hold far less information than a 48x60. -- Joseph E. Meehan 26 + 6 = 1 It's Irish Math |
#4
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Theseeker wrote:
I am about to buy a colour aerial photo of a sixty square mile area. The firm supplying these charges more for the image on CD than it does for a printed photograph. Don't ask me why, I've queried it and the differential is vast. Obviously I am considering buying the printed version, scanning it and saving it to CD for future ehancement/enlargement. Will I lose any quality with this conversion? I have a SCSI scanner and Photoshop so I am confident I could get about 1440 dpi. Would I be better off buying a negative and getting a professional to digitize it? What are the various technical parameters regarding the print and the CD image? (Size, pixels x,y) Do they say what size the negative(positive) is that covers that area? Most prints yield about 400 dpi at best. (B&W aerial photography done on high end cameras and repro equipment might go to 600 or so). So the larger the print they sell, the better. I'm curious: What is your use of the image going to be? Cheers, Alan -- -- rec.photo.equipment.35mm user resource: -- http://www.aliasimages.com/rpe35mmur.htm -- e-meil: there's no such thing as a FreeLunch.-- |
#5
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Its simple as to why they charge more for the CD than the print - on the CD
you have a perfect copy of the image that you can make prints from (I assume that the CD includes a licence to do that). On the print, you have bought a print, and I presume NO LICENCE to reproduce the image - ie, by you scanning and reprinting the image, you are breaching copyright. (* all legal disclaimers apply) If you were to by the negative, I guess that the price would be higher than the CD alone. "Theseeker" wrote in message ... I am about to buy a colour aerial photo of a sixty square mile area. The firm supplying these charges more for the image on CD than it does for a printed photograph. Don't ask me why, I've queried it and the differential is vast. Obviously I am considering buying the printed version, scanning it and saving it to CD for future ehancement/enlargement. Will I lose any quality with this conversion? I have a SCSI scanner and Photoshop so I am confident I could get about 1440 dpi. Would I be better off buying a negative and getting a professional to digitize it? |
#6
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Its simple as to why they charge more for the CD than the print - on the CD
you have a perfect copy of the image that you can make prints from (I assume that the CD includes a licence to do that). On the print, you have bought a print, and I presume NO LICENCE to reproduce the image - ie, by you scanning and reprinting the image, you are breaching copyright. (* all legal disclaimers apply) If you were to by the negative, I guess that the price would be higher than the CD alone. "Theseeker" wrote in message ... I am about to buy a colour aerial photo of a sixty square mile area. The firm supplying these charges more for the image on CD than it does for a printed photograph. Don't ask me why, I've queried it and the differential is vast. Obviously I am considering buying the printed version, scanning it and saving it to CD for future ehancement/enlargement. Will I lose any quality with this conversion? I have a SCSI scanner and Photoshop so I am confident I could get about 1440 dpi. Would I be better off buying a negative and getting a professional to digitize it? |
#7
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What are the various technical parameters regarding the print and the CD image?
(Size, pixels x,y) Do they say what size the negative(positive) is that covers that area? Most prints yield about 400 dpi at best. (B&W aerial photography done on high end cameras and repro equipment might go to 600 or so). So the larger the print they sell, the better. I'm curious: What is your use of the image going to be? Cheers, Alan The print is color A3 size. This firm joins dozens of grid squares together according to the land area required. I'll have to ask them Monday the comparitive resolution of CD and print. I'll be reproducing the view onto plastic for vacuum forming. Potential viewers will only be seeing A3 size print, they will not be zooming in, unless they use a magnifying glass! |
#8
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What are the various technical parameters regarding the print and the CD image?
(Size, pixels x,y) Do they say what size the negative(positive) is that covers that area? Most prints yield about 400 dpi at best. (B&W aerial photography done on high end cameras and repro equipment might go to 600 or so). So the larger the print they sell, the better. I'm curious: What is your use of the image going to be? Cheers, Alan The print is color A3 size. This firm joins dozens of grid squares together according to the land area required. I'll have to ask them Monday the comparitive resolution of CD and print. I'll be reproducing the view onto plastic for vacuum forming. Potential viewers will only be seeing A3 size print, they will not be zooming in, unless they use a magnifying glass! |
#9
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Theseeker wrote:
I am about to buy a colour aerial photo of a sixty square mile area. The firm supplying these charges more for the image on CD than it does for a printed photograph. Don't ask me why, I've queried it and the differential is vast. Obviously I am considering buying the printed version, scanning it and saving it to CD for future ehancement/enlargement. Will I lose any quality with this conversion? I have a SCSI scanner and Photoshop so I am confident I could get about 1440 dpi. Would I be better off buying a negative and getting a professional to digitize it? I believe you pay more for the "negative" because you are getting the source and can make as many prints as you like. Most film photographers charge extra to supply the film. -- Ben Thomas Opinions, conclusions, and other information in this message that do not relate to the official business of my firm shall be understood as neither given nor endorsed by it. |
#10
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Theseeker wrote:
I am about to buy a colour aerial photo of a sixty square mile area. The firm supplying these charges more for the image on CD than it does for a printed photograph. Don't ask me why, I've queried it and the differential is vast. Obviously I am considering buying the printed version, scanning it and saving it to CD for future ehancement/enlargement. Will I lose any quality with this conversion? I have a SCSI scanner and Photoshop so I am confident I could get about 1440 dpi. Would I be better off buying a negative and getting a professional to digitize it? I believe you pay more for the "negative" because you are getting the source and can make as many prints as you like. Most film photographers charge extra to supply the film. -- Ben Thomas Opinions, conclusions, and other information in this message that do not relate to the official business of my firm shall be understood as neither given nor endorsed by it. |
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