Coronado BF15 dies and resurected!

Frankenscope? Let's see it!***be advised that NOTHING in this forum has been safety tested and you are reading and using these posts at your own peril. blah, blah, blah... dont mess around with your eyesight when it comes to solar astronomy. Use appropriate filtration at all times...
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Merlin66
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Coronado BF15 dies and resurected!

Post by Merlin66 » Thu Oct 27, 2016 5:51 am

After seven years my BF15 (from my SM60) finally died......
I was testing an ol' IOM etalon and borrowed a Lunt 1800 filter; I couldn't help but try it on the SM60. Majic! Wonderfully bright and detailed surface and proms.
When I went back to the BF15 I thought I'd gone blind - the solar disk was very faint by comparison (similar to the difference between single and double stacking). What!!!!!!!!!!!!!
A closer look at the ITF revealed the dreaded heat rust syndrome - Bumma! All my BF filters are always kept in sealed Tupperware with Silica Gel.

Mr Maier to the rescue. I bought one of the ITF replacement filters ( H-alpha ITF Blocker, 0.69 Dia x 0.125 inches) for testing a couple of years ago (to compare with the Baader 35nm as an ITF replacement) and quickly did the change over.
The view was now as bright as the Lunt with the same visible details!!!
Hopefully the Maier ITF will last as long as the original.
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Re: Coronado BF15 dies and resurected!

Post by GUS » Thu Oct 27, 2016 8:25 am

Thanks for the info Ken. I have 3 BF10's which have the rust issue, the newer of the 3 showed signs of rusting within months of purchase, I'll give the Maier filter a try. On another note, did you sort out the USB 3 issue with the DMK51.

Ivan.

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Re: Coronado BF15 dies and resurected!

Post by Merlin66 » Thu Oct 27, 2016 8:32 pm

Ivan,
The Maier ITF works well....
No, never had any success with the DMK51 on the new laptop. Although plugging into the USB2 port it still will only run at low fps.
TIS never came back with a reply....
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Re: Coronado BF15 dies and resurected!

Post by marktownley » Thu Oct 27, 2016 8:53 pm

The Maier replacements are good, i've used them too.
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Re: Coronado BF15 dies and resurected!

Post by ronatu » Sun Sep 23, 2018 2:54 pm

Any ideas for bf (not itf) replacement?

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Re: Coronado BF15 dies and resurected!

Post by marktownley » Sun Sep 23, 2018 4:31 pm

Never come across them other than for Daystar Quarks.
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Re: Coronado BF15 dies and resurected!

Post by TheSkyBurner » Sun Sep 23, 2018 6:31 pm

ronatu wrote:
Sun Sep 23, 2018 2:54 pm
Any ideas for bf (not itf) replacement?
I know what the replacements are, but unfortunatley i signed a confidentiality agreement and ccannot reveal it publically.

They are definitly available and out there “off the shelf”. Its a very common part. (Hint)

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Re: Coronado BF15 dies and resurected!

Post by Valery » Sun Sep 23, 2018 7:15 pm

Agreement with the CIA or FBI ? :)))))
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Re: Coronado BF15 dies and resurected!

Post by ronatu » Sun Sep 23, 2018 10:40 pm

TheSkyBurner wrote:
Sun Sep 23, 2018 6:31 pm
ronatu wrote:
Sun Sep 23, 2018 2:54 pm
Any ideas for bf (not itf) replacement?
I know what the replacements are, but unfortunatley i signed a confidentiality agreement and ccannot reveal it publically.

They are definitly available and out there “off the shelf”. Its a very common part. (Hint)
Is it less expensive than 699?

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Re: Coronado BF15 dies and resurected!

Post by ronatu » Sun Sep 23, 2018 11:40 pm

Clarification: I am looking for narrow band blocking filter replacement.

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Re: Coronado BF15 dies and resurected!

Post by TheSkyBurner » Mon Sep 24, 2018 8:54 pm

Breaking all the rules here. It seems like all I do anymore.
off the shelf blocking filter by apollo lasky.JPG
off the shelf blocking filter by apollo lasky.JPG (117.71 KiB) Viewed 218 times

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Re: Coronado BF15 dies and resurected!

Post by ronatu » Wed Sep 26, 2018 9:43 pm

Andover?

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