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Product comparison · 2 document cameras

Epson DC-21 document camera White 25.4 vs SMART Technologies SDC-450 document camera Black, Grey, White 25.4

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  • 23specifications compared
  • 11differ
  • 12identical
  • 25known 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 DC-21 document camera White 25.4 (5 MP vs 2 MP). The Epson DC-21 document camera 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). The SMART Technologies SDC-450 document camera Black, Grey, White 25.4 has 8.6 mA more power consumption than the Epson DC-21 document camera White 25.4 (21.6 mA vs 13 mA). Optical sensor size: 25.4 / 2.7 mm (1 / 2.7") on the Epson DC-21 document camera 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 420 mm on the Epson DC-21 document camera White 25.4, 400 x 300 mm 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 420 mm
    • 400 x 300 mm
  • Product colour
    • White
    • Black, Grey, White
  • AC input voltage
    • 100-240 V
    • 12 V
  • Power consumption
    • 13 mA
    • 21.6 mA
  • Cables included
    • AC, USB
    • AC, USB, VGA

Side by side

Differences highlightedShow differences only
48 specifications
A

Epson

DC-21 document camera White 25.4

Model DC-21

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 resolutionsDiffers1024 x 768 (XGA), 1280 x 1024 (SXGA), 1280 x 768 (WXGA), 1280 x 800 (WXGA)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 420 mm400 x 300 mm
Maximum focal length (f)Known for one6.8 mm
Ports & interfacesidentical
InterfaceUSB 2.0USB 2.0
USB connector typeUSB Type-BUSB Type-B
Ethernet LANKnown for oneNo
VGA (D-Sub) input ports11
VGA (D-Sub) output ports11
Audio outputKnown for oneYes
DVI output portsKnown for one1
RS-232 portsKnown for one1
USB 2.0 ports quantityKnown for one1
Technical details1 differ
Product colourDiffersWhiteBlack, Grey, White
Cable lock slotYesYes
Cable lock slot typeKnown for oneKensington
Built-in microphoneYesYes
FocusKnown for oneAuto
Image formats supportedKnown for oneJPG
Lamp typeKnown for oneLED
Lamps quantityKnown for one2 lamp(s)
Zoom capabilityKnown for oneAuto
Power2 differ
Power supply typeACAC
Power consumption (typical)Known for one0.5 W
AC input frequency50 - 60 Hz50 - 60 Hz
AC input voltageDiffers100-240 V12 V
Power consumptionDiffers13 mA21.6 mA
System requirements2 differ
Windows operating systems supportedDiffersYesWindows 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 supportedDiffersMac OS X 10.0 Cheetah, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 MavericksMac 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
Weight & dimensionsidentical
WidthKnown for one270 mm
DepthKnown for one317 mm
HeightKnown for one447 mm
WeightKnown for one2.6 kg
Packaging content1 differ
Cables includedDiffersAC, USBAC, USB, VGA
ManualYesYes
User guideKnown for oneYes
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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