Reviews from around the WebPowered by alaTest
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alaTest.com
Editors' rating: 81
Summary: alaTest has collected and analyzed 32 reviews of HP Scanjet 7800 from international magazines and websites. Experts rate this product 70/100 and users 84/100. Comparing these reviews to 33511 other Scanners reviews gives this product an overall alaScore™ 81/100 = Very Good.
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pcmag.com
Editors' rating: 70
Summary: Oddly designed, the HP Scanjet 7800 is strong on software and features, but some functions fall short.
CNET editors' buying advice
We have not reviewed this product but here is CNET's buying advice on Scanners. This content was chosen based on the features included with this model of scanner.
Optical Resolution
The maximum optical resolution of a scanner is very important. Be careful of claims of 'interpolated' resolution--this is a software trick to try to generate a larger image from less data, but cannot really generate a clear image. Also, the real limit is the lower of the vertical or horizontal maximum resolution, anything past the lower of those two numbers is using interpolation.
The amount of resolution actually needed depends on the intended job. Scanning something purely for use on a computer screen at about the same size needs a mere 75 dpi, but this about the least demanding job possible. If you intend to print your scanned image, a minimum of about 300 dpi is needed for color (and 600 dpi for black-and-white).
The above assumes that the final image should be about the same size as the original. For enlargements, better resolution is needed so that the final image maintains the required dpi after the image is enlarged. For instance, to print a 4"x5" photo at the size of a full sheet (8"x10"), the 8"x10" image will need (300 x 10) 3000 pixels down the long side. That turns into (3000 / 5) 600 dpi for the original scan.
See more Optical Resolution products
CNET product brief
Description: The HP ScanJet 7800 is a 1200dpi, graphic arts scanner.Compared to other graphic arts scanners on the market, it is midpriced at around $715.
Pros: Has 1200dpi horizontal resolution, which is sharper than some similarly priced scanners.
Cons: This unit has a large footprint and may overwhelm smaller desks.
Suitability: A graphic arts scanner, suited for high-quality scans for professional and commercial graphic-arts use.This scanner can handle legal (8.5 in x 14 in) documents.Has a duty cycle of 1000 pages per day.
Value: Overall, this scanner's features are as expected for this price.Moreover, if you were judge strictly by scanner resolution, you might pay up to 15% less for a comparable graphic arts scanner.
Suggestions: To see some of our editors' favorite scanners, visit CNET Editors' Top Scanners
CNET's Product Briefs are generated by a software tool that combines product specifications with knowledge of our editorial experts. They do not reflect hands-on assessment or labs testing. For more information about how we create Product Briefs, contact us.
