How can I observe moving cells without visible light? I tried with IR LED and an IR sensitive Bresser ocular camera, but the iR light was too weak.
Hello,
First check the combination of LED and camera without microscope to see if you get sufficient signal at all. If not, you could first try an IR led with a relatively short wavelength (NIR, e.g. ~850 nm) to see if that is working. At this relatively short wavelength you expect that the transmission of the optical elements is still fine. Then you could move to longer wavelengths and at certain longer wavelengths the transmission will drop (due to absorption by the lens materials and/or due to the optical coating). Hope it helps.
BR,
Stefan
Primary answer :
The digital camera has Infrared blocking filters.
First, remove the filter which is on the digital camera close to the sensor.
The microscope must own hight quality optical elements.
Hope it solves the problem,
ALbert
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