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new batch of Altair 4nm Dual Band CMOS filters incoming

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Hi there we are testing the new batch of 2" Altair 4nm Dual Band CMOS filters at the moment.


We'll start shipping them sometime next week after final inspection, cleaning and mounting.


Each filter comes with an individual test report graph showing the bandpass, another first I believe.


With this bandpass and OD blocking, you can image in mid summer, full moon, the city centre at Bortle 9, etc.


A few example filter test spectrographs from this batch:





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