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Product comparison · 2 document cameras

Epson ELP-DC21 document camera Grey, White 25.4 vs SMART Technologies SDC-450 document camera Black, Grey, White 25.4

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  • 19specifications compared
  • 9differ
  • 10identical
  • 32known for one product only

Key differences

The SMART Technologies SDC-450 document camera Black, Grey, White 25.4 has 3 MP more effective sensor resolution than the Epson ELP-DC21 document camera Grey, White 25.4 (5 MP vs 2 MP). The Epson ELP-DC21 document camera Grey, White 25.4 has 4 x more optical zoom than the SMART Technologies SDC-450 document camera Black, Grey, White 25.4 (12x vs 8x). Optical sensor size: 25.4 / 2.7 mm (1 / 2.7") on the Epson ELP-DC21 document camera Grey, White 25.4, 25.4 / 3.2 mm (1 / 3.2") on the SMART Technologies SDC-450 document camera Black, Grey, White 25.4. Shooting area (WxD): 297 x 526 mm on the Epson ELP-DC21 document camera Grey, White 25.4, 400 x 300 mm on the SMART Technologies SDC-450 document camera Black, Grey, White 25.4. Interface: USB 1.1 on the Epson ELP-DC21 document camera Grey, White 25.4, USB 2.0 on the SMART Technologies SDC-450 document camera Black, Grey, White 25.4.

  • Effective sensor resolution
    • 2 MP
    • 5 MP
  • Optical sensor size
    • 25.4 / 2.7 mm (1 / 2.7")
    • 25.4 / 3.2 mm (1 / 3.2")
  • Optical zoom
    • 12x
    • 8x
  • Shooting area (WxD)
    • 297 x 526 mm
    • 400 x 300 mm
  • Interface
    • USB 1.1
    • USB 2.0
  • Product colour
    • Grey, White
    • Black, Grey, White
  • AC input frequency
    • 50-60 Hz
    • 50 - 60 Hz
  • AC input voltage
    • 100-240 V
    • 12 V

Side by side

Differences highlightedShow differences only
51 specifications
A

Epson

ELP-DC21 document camera Grey, White 25.4

Model ELP-DC21

View product
B

SMART Technologies

SDC-450 document camera Black, Grey, White 25.4

Model SDC-450

View product
Camera3 differ
Effective sensor resolutionDiffers2 MP5 MP
Optical sensor sizeDiffers25.4 / 2.7 mm (1 / 2.7")25.4 / 3.2 mm (1 / 3.2")
Sensor typeKnown for oneCMOS
Supported graphics resolutionsDiffers1920 x 1080 (HD 1080)1024 x 768 (XGA), 1280 x 1024 (SXGA), 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 sourceKnown for oneLED
Lens system2 differ
Auto focusYesYes
Optical zoomDiffers12x8x
Digital zoom10x10x
Shooting area (WxD)Differs297 x 526 mm400 x 300 mm
Maximum focal length (f)Known for one6.8 mm
Ports & interfaces1 differ
InterfaceDiffersUSB 1.1USB 2.0
DC-in jackKnown for oneYes
VGA (D-Sub) input ports11
VGA (D-Sub) output ports11
USB connector typeKnown for oneUSB Type-B
Audio outputKnown for oneYes
DVI output portsKnown for one1
RS-232 portsKnown for one1
USB 2.0 ports quantityKnown for one1
Technical details1 differ
Document size (max)Known for oneA3
Product colourDiffersGrey, WhiteBlack, Grey, White
Cable lock slotYesYes
Built-in microphoneYesYes
Image formats supportedKnown for oneJPG
Image quality adjustmentKnown for oneBrightness, Contrast
Lamp typeKnown for oneLED
Lamps quantityKnown for one2 lamp(s)
Zoom capabilityKnown for oneYes
Power2 differ
Power supply typeACAC
Power consumption (typical)Known for one13 W
Power consumption (standby)Known for one0.5 W
Operating voltageKnown for one12 V
AC input frequencyDiffers50-60 Hz50 - 60 Hz
AC input voltageDiffers100-240 V12 V
Power consumptionKnown for one21.6 mA
Weight & dimensionsidentical
WidthKnown for one270 mm
DepthKnown for one502 mm
HeightKnown for one328 mm
WeightKnown for one2.6 kg
Packaging dataidentical
Quantity per packKnown for one1 pc(s)
Packaging contentidentical
ManualYesYes
User guideYesYes
Cables includedKnown for oneAC, USB, VGA
System requirementsidentical
Windows operating systems supportedKnown for oneWindows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pr
Mac operating systems supportedKnown for oneMac OS 8.6, Mac OS 9.0, Mac OS 9.1, Mac OS 9.2, Mac OS X 10.0 Cheetah, Mac OS X 10.1 Puma, Mac OS X 10.2 Jaguar, Mac OS X 10.3 Panther, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard
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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