optimal dust and scratch removal by using the infrared channel
スキャンにかかる時間の増加
constant lighting conditions, it can be used independently of the ambient light
high dynamic range for more image details
calibrated workflow easy to set up
ease of use
inexpensive devices with good quality available
Conclusion
CMOS scanners are incredibly easy to own and incredibly easy to use. They are fast. However, you ultimately pay for their low price tag; image adjustments are often not possible and quality isn’t convincing.