Which wavelength range does the IRCUT filter cover?

fedorauser

Which wavelength range does the IRCUT filter cover?
This would be important because the LP filter is placed on top of it and I would need the exact parameters to calculate the SPCC.
There are also IRCUT filters that extend into the visible range and thus influence the values of the LP filter.

gofraro

As far as I've been told, the Seestar (S50) toggles between UV/IR-cut and LP.
And the UV/IR-cut has a bandpass from ~ 400nm to ~ 700nm
The LP-Filter should have these characteristics

fedorauser

Thanks, but that wasn't the question. The Seestar also inserts the LP filter.
The IRCUT is always in use and therefore the question is whether the IRCUT filter extends into the visible area. There are IRCUT filters on the market that have this property and then I would have to take this into account in the calculation for an SPCC.

Support@Seestar

fedorauser Does not affect the visible region

fedorauser

Thank you for the reply, does this mean that the properties of the IRCUT filter do not have to be included in the calculation of an SPCC in Pixinsight or Siril and that the workflow shown in the Pixinsight forum is not correct?

https://pixinsight.com/forum/index.php?threads/spcc-and-seestar-s50.23005/

Support@Seestar

fedorauser You do not need to manually account for the IRCUT filter in the SPCC process within PixInsight or Siril, because the filter's effect on the color channels is already baked into the data you’ve captured.
I'm not sure about the workflow in the forums, after all this is third party software.

fedorauser

Sorry, but that can't be true, because the same would then also apply to the LP or any other camera and filter combination.
The simple question is easy to answer: what area does the IRCUT filter cover?
There has to be a chart for that as well as the LP filter.
Is it the original filter from Sony or is it an in-house development?

Support@Seestar

fedorauser This filter is our own and the coverage area is able to cover Seestar completely.

fedorauser

Support@Seestar Dieser Filter ist unser eigener und der Abdeckungsbereich ist in der Lage, Seestar vollständig abzudecken.

Sorry, that wasn't the question. I'm looking for the chart that, like that of the LP filter, tells you which wavelength it is active on.

As an example, a Noname IRCUT filter

or also seen here.
https://www.zwoastro.com/product/ircut-filters/

Therefore, this diagram would be necessary for an accurate calculation of the SPCC.
Thank you for your effort

fedorauser

I would like to bring up the topic again and not get on any of the developers' nerves.

I need the diagram for the IRCUT filter to correctly calculate a spectroscopic color calibration (SPCC)
Thank you

Support@Seestar

fedorauser
UV/IR Cut filter: Filters out ultraviolet and infrared rays and only allows visible light to pass through. The spectral curve is as follows:

fedorauser

Thank you for the diagram. This means that the filter extends into the visible range and must be included in the SPCC

Violett: ≈ 380 - 420 nm
Blau: ≈ 420 - 490 nm
Grün: ≈ 490 - 575 nm
Gelb: ≈ 575 - 585 nm
Orange: ≈ 585 - 650 nm
Rot: ≈ 650 - 780 nm

Support@Seestar

fedorauser
Alright, I have to admit my mistake. I haven’t used this third-party software before, but I would be happy to help you if I can.