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Comparison Epson Perfection V800 Photo vs Epson GT-1500

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Epson Perfection V800 Photo
Epson GT-1500
Epson Perfection V800 PhotoEpson GT-1500
from £560.47 
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from $385.00 up to $418.45
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Product typeflatbedflatbed
FormatA4A4
Max. resolution6400x9600 dpi1200x2400 dpi
Technical specs
Optical elementCCDCCD
Max. scan area216х297 mm216х297 mm
Optical density4 D
Colour depth (int.)48 bit48 bit
Colour depth (ext.)48 bit48 bit
Mono scanning15 ppm18 ppm
Colour scanning15 ppm12 ppm
Operating cycle400 page/day
Document autofeed40 page
Slide modulebuilt-inis absent
Data transfer
USB
IEEE-1394
USB
 
General
Power sourcemains poweredmains powered
Power consumption23 W12.5 W
Dimensions503x308x152 mm470х318х121 mm
Weight6.6 kg3.9 kg
Added to E-Catalogseptember 2016march 2010

Max. resolution

The highest resolution of the digital image generated by the scanner during operation. Specified in dots per inch — dpi (dots per inch).

The higher the scan resolution, the higher the resolution of the resulting image will be (with the same size of the source material) and the more accurately small details will be transmitted on it. On the other hand, high resolution noticeably affects the price of the scanner, increases the processing time and the size of the resulting file — despite the fact that the real need for high detail is not always present, and in some cases it is even unnecessary (for example, when processing an image with small artifacts, not visible at low detail). Therefore, when choosing by this parameter, you should not chase high resolution values — you should proceed from the real need and the specifics of the intended use of the scanner.

The simplest modern scanners have a resolution of about 300x300 dpi — this is quite enough for text recognition with an average font size. And in high-end professional models, this figure can exceed 7000x7000 dpi.

Optical density

The maximum optical density of a dark image that the scanner can distinguish from pure black. Optical density characterizes how much of the light falling on the image was reflected (for opaque images) or transmitted (for transparent). The higher the optical density, the less light the object reflects / transmits. Accordingly, the higher the optical density of the scanner, the higher its sensitivity and the better it is suitable for working with dark images.

Mono scanning

The black and white scanning speed provided by the device. Usually, the maximum processing speed for an A4 sheet is indicated, i.e. speed at the lowest resolution. In fact, the speed is usually lower and depends on both the resolution and the size of the original material. The higher the scanning speed, the more convenient it is to work with the scanner; pay special attention to this parameter if you plan to work with numerous black and white images.

Colour scanning

Colour scanning speed provided by the device. In fact, it depends on the selected resolution, colour depth and original dimensions; the characteristics most often indicate the speed for an A4 sheet at the minimum resolution and colour depth, i.e. maximum possible speed. If you only need to scan one or more sheets from time to time, high speed is not too critical, but for working with a large amount of materials, you should look for fast models.

Operating cycle

The maximum number of pages that the scanner can process per day without overloading and the negative consequences associated with them. Most often indicated for A4 format. Even the most modest models of modern scanners have duty cycles measured in dozens of pages, which is quite enough for simple everyday tasks. Therefore, you should pay attention to this parameter if you have to scan numerous materials every day.

Document autofeed

The maximum number of sheets of standard weight (80 g/m²) paper that can be placed in the scanner's auto feed system at a time. These systems are similar to those installed in printers: a stack of sheets is installed in a special tray, and each of them is fed in turn for scanning. It is worth paying attention to models with this function if you often have to work with numerous documents: you will not need to monitor the process and manually feed sheets — just load the originals into the automatic document feeder and press the button. Many document feeders, some flatbeds, and almost all combination scanners have an ADF (see "Type"). It works, however, only with separate sheets and cannot cope with larger media.

Slide module

By default, the scanner is designed to work with reflective, i.e. opaque materials (such as paper). The slide module allows you to use the device for processing transparent materials, such as photographic film.

Data transfer

— Wi-Fi. A wireless interface primarily used to build local computer networks. In many respects it is similar to the LAN described below (in particular, it allows using the scanner as a network device), but it compares favorably due to the absence of a cable and the ability to work directly through walls. In addition, relatively recently, Wi-Fi modules have appeared with the ability to directly connect between devices — for example, to control a scanner from a tablet and transfer processed materials to the tablet directly, without creating a computer network. However scanners with Wi-Fi are quite expensive.

USB. Universal interface for connecting various peripherals to a computer, including scanners. Today, it is the most common port of this type; at least one USB input is provided by the vast majority of PCs and laptops.

SCSI. Universal interface for connecting computer peripherals; has a good speed, however, it is much less common than its analogues, besides it is considered obsolete and is gradually being replaced by other standards.

IEEE-1394. Universal port, in many ways similar to USB (see above). Provides higher speed than the most common USB 2.0, but is much less common.

-LAN. Connector for connecting various devices to a local computer network. A scanne...r with this interface can be connected as a network device and used with it by any computer on the network, which can be especially useful in offices.

Power consumption

The maximum power consumed by the scanner during operation. The higher the power, the more energy the scanner consumes, but this only applies to the scanning process itself — in standby mode, power consumption is negligible. And even at the peak in most models, the power is so low that in fact this parameter has practically no effect on electricity bills and is more of an auxiliary value (for example, it is used to calculate the total power of devices connected to an uninterruptible power supply).
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