[NOT REQUIRED] Coronado BF10 blocking filter

AstroFlyer (Arek) · #1 30-01-2011, 10:33 PM

Looking for a Coronado BF10 blocking filter.
Let me know if you have one.
Thanks.

Cheers.
Arek

Merlin66 (Ken) · #2 31-01-2011, 12:48 AM

I assume you want to use this on a PST mod?
Just a note of caution...I just tested a "early model IoM" Coronado blocking filter which worked 100% on the objective Ha filters ie SM40/ SM60 but DIDN'T work with the PST etalon.... the bandwidth and finesse appears to be just that little bit different. I believe Al has had success with a Lunt blocking filter....

AstroFlyer (Arek) · #3 31-01-2011, 02:17 AM

Thanks Ken.
You are correct - it is for my PST mod.
Is it only early models that have a problem?
What if I buy a new one?
Lunt B1200 was my first choice, but can't find it anywhere - either on back order or they don't ship to Australia.
Also read few stories of people doing PST mod with Lunt not working...
Not sure what to get now...

Merlin66 (Ken) · #4 31-01-2011, 02:32 AM

I use the latest Coronado BF10 and BF15 successfully on my PST mods.
I haven't heard of any problems with the Lunt 1200 blocking filter on the PST so if you have any links to this problem I'd love to have them ( it would add useful material for the PST mod write-up - available on request)