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Product comparison · 2 document cameras

Epson DC-21 document camera White 25.4 vs SMART Technologies SMART Document Camera 550

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  • 20specifications compared
  • 13differ
  • 7identical
  • 30known for one product only

Key differences

The SMART Technologies SMART Document Camera 550 has 2 x more digital zoom than the Epson DC-21 document camera White 25.4 (12x vs 10x). The Epson DC-21 document camera White 25.4 has 69 mm more width than the SMART Technologies SMART Document Camera 550 (270 mm vs 201 mm). The SMART Technologies SMART Document Camera 550 has 64 mm more depth than the Epson DC-21 document camera White 25.4 (381 mm vs 317 mm). Shooting area (WxD): 297 x 420 mm on the Epson DC-21 document camera White 25.4, 445 x 248 mm on the SMART Technologies SMART Document Camera 550. Interface: USB 2.0 on the Epson DC-21 document camera White 25.4, Wi-Fi on the SMART Technologies SMART Document Camera 550.

  • Digital zoom
    • 10x
    • 12x
  • Shooting area (WxD)
    • 297 x 420 mm
    • 445 x 248 mm
  • Interface
    • USB 2.0
    • Wi-Fi
  • USB connector type
    • USB Type-B
    • Mini-USB B
  • Product colour
    • White
    • Black
  • Focus
    • Auto
    • Auto/Manual
  • AC input voltage
    • 100-240 V
    • 100 - 240 V
  • Width
    • 270 mm
    • 201 mm

Side by side

Differences highlightedShow differences only
50 specifications
A

Epson

DC-21 document camera White 25.4

Model DC-21

View product
B

SMART Technologies

SMART Document Camera 550View product
Camera1 differ
Effective sensor resolutionKnown for one2 MP
Optical sensor sizeKnown for one25.4 / 2.7 mm (1 / 2.7")
Sensor typeKnown for oneCMOS
Supported graphics resolutionsDiffers1024 x 768 (XGA), 1280 x 1024 (SXGA), 1280 x 768 (WXGA), 1280 x 800 (WXGA)1024 x 768 (XGA), 1280 x 720 (HD 720), 1920 x 1080 (HD 1080)
Maximum frame rate30 fps30 fps
White balanceKnown for oneAuto
Light exposure modesKnown for oneAuto
Image freezeKnown for oneYes
Light sourceLEDLED
Lens system2 differ
Auto focusYesYes
Optical zoomKnown for one12x
Digital zoomDiffers10x12x
Shooting area (WxD)Differs297 x 420 mm445 x 248 mm
Ports & interfaces2 differ
InterfaceDiffersUSB 2.0Wi-Fi
USB connector typeDiffersUSB Type-BMini-USB B
Ethernet LANKnown for oneNo
VGA (D-Sub) input portsKnown for one1
VGA (D-Sub) output portsKnown for one1
Audio outputKnown for oneYes
RS-232 portsKnown for one1
USB 2.0 ports quantityKnown for one1
Wi-Fi standardsKnown for one802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Technical details2 differ
Product colourDiffersWhiteBlack
Cable lock slotYesYes
Cable lock slot typeKnown for oneKensington
Built-in microphoneKnown for oneYes
FocusDiffersAutoAuto/Manual
Image formats supportedKnown for oneJPG
Lamp typeLEDLED
Lamps quantityKnown for one2 lamp(s)
Zoom capabilityKnown for oneAuto
Image quality adjustmentKnown for oneBrightness
Power1 differ
Power supply typeACAC
Power consumption (typical)Known for one0.5 W
AC input frequency50 - 60 Hz50 - 60 Hz
AC input voltageDiffers100-240 V100 - 240 V
Power consumptionKnown for one13 mA
Battery typeKnown for oneBuilt-in battery
System requirements1 differ
Windows operating systems supportedDiffersYesWindows 10, Windows 7, Windows 8
Mac operating systems supportedKnown for oneMac OS X 10.0 Cheetah, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Mac compatibilityKnown for oneYes
Weight & dimensions4 differ
WidthDiffers270 mm201 mm
DepthDiffers317 mm381 mm
HeightDiffers447 mm526 mm
WeightDiffers2.6 kg2.44 kg
Packaging contentidentical
Cables includedKnown for oneAC, USB
ManualKnown for oneYes
Storageidentical
Memory capacity (images)Known for one240
Operational conditionsidentical
Operating temperature (T-T)Known for one0 - 35 °C
Operating relative humidity (H-H)Known for one30 - 85%

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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