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#1
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Which Slide Scanning Quality?
I am confused as to the best options to choose when having slides
scanned by a professional scanning firm in Tiff format Firstly, there is a choice of resolutions - 1350, 2700 or 4000 dpi. Secondly, the choice is either 8-bit or 16 bit. I am aiming to have prints made from the scans after they have been edited - mostly 5"x7" - possibly some larger, up to 8"x10". It has been suggested to me that for 5x7" prints there is no point in going higher than 1350 dpi/8bit as the quality will be very good at this level I will be grateful if I could have an explanation as to the size of print for which each of the different scanning quality combinations would be most suitable. Denis Boisclair Cheshire, England |
#2
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You may later decide you want to print larger images but if your scan is too
small to begin with you will not be able to do so. For your purposes a 2700dpi scan in 8bit color would suffice for extremely high quality printing to A size paper and beyond. There will also be enough data so that you will be able to crop the image and still obtain good quality prints. If you do not know why you may need or want 16 bit color just say no. |
#4
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wrote:
I am confused as to the best options to choose when having slides scanned by a professional scanning firm in Tiff format Firstly, there is a choice of resolutions - 1350, 2700 or 4000 dpi. Secondly, the choice is either 8-bit or 16 bit. I am aiming to have prints made from the scans after they have been edited - mostly 5"x7" - possibly some larger, up to 8"x10". It has been suggested to me that for 5x7" prints there is no point in going higher than 1350 dpi/8bit as the quality will be very good at this level I will be grateful if I could have an explanation as to the size of print for which each of the different scanning quality combinations would be most suitable. Denis Boisclair Cheshire, England visit this site: www.scantips.com It will tell you all you need to know. -- Ron Hunter |
#5
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wrote in message oups.com... I am confused as to the best options to choose when having slides scanned by a professional scanning firm in Tiff format Firstly, there is a choice of resolutions - 1350, 2700 or 4000 dpi. Secondly, the choice is either 8-bit or 16 bit. And what if I wish to project the photos onto a screen using an LCD or similar projector, what resolution is needed then? Gerrit - who has always thought 4000dpi was the lowest needed for a quality product |
#6
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wrote in message oups.com... I am confused as to the best options to choose when having slides scanned by a professional scanning firm in Tiff format Firstly, there is a choice of resolutions - 1350, 2700 or 4000 dpi. Secondly, the choice is either 8-bit or 16 bit. And what if I wish to project the photos onto a screen using an LCD or similar projector, what resolution is needed then? Gerrit - who has always thought 4000dpi was the lowest needed for a quality product |
#7
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If there is no cost difference I would have them scanned at 4000 dpi
and 16 bits. Depending on the scanner you will be able to reduce the effects of grain noise a bit better with a 4000 dpi scan. Scott |
#8
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#9
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#10
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Many thanks to everyone who replied so quickly and with just the
information I was hoping for. I had specified 2700 dpi and 8bit for a current batch of slides and I now feel reassured. Where would people like me be without rec.photo.digital and it's knowledgable members - thanks again! Denis Cheshire, England |
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