Baader >F3.4 filter on the Rasa 8

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Abdul Thomas Jnr avatar

Hi. I was thinking about buying the Baader Cmos narrowband high speed filter F2 for my rasa 8. But someone is selling the Baader next grade ones F3.4. I’m just wondering if the F3.4 will work just as fine as the F2 filter on the Rasa. Thanks in advance

andrea tasselli avatar
It'll work but not just as fine.
Abdul Thomas Jnr avatar

So there is noticeable difference between the two filters? I want the best for the Rasa you see

andrea tasselli avatar
You got a relatively large CO so the loss in transmittance is going to be significant compared to the F2 filter. If you shoot only bright targets that might not be obvious but the faint stuff will resent it.
Abdul Thomas Jnr avatar

Okay thank you. I will just go with the F2, might as well