I am looking at obtaining an affordable ERF for the 150 ....
Currently using the baader 35nm which is effective ... but I can see turbulence from
within the ota as expected ... I guess I'm just after something to take the edge
of the heat to use in conjunction with the 35nm
Would something like this be any good ? ... any other ideas would be greatly appreciated.
http://www.amazon.co.jp/PENTAX-SMC-PFフィ ... _rhf_p_t_2
The link hasn't worked but is for a 150mm uv camera filter.
Brian
Budget 150mm ERF .... quark
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Re: Budget 150mm ERF .... quark
Hello,
which Baader ERF you mean ?
C-ERF or D-ERF ?
Theres a big different between.
sunny Greetings
Achim
which Baader ERF you mean ?
C-ERF or D-ERF ?
Theres a big different between.
sunny Greetings
Achim
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Re: Budget 150mm ERF .... quark
I'm going to try the appropriate Kodak Safelight Filter as an ERF on my C8, it will act to keep some IR out of the tube, and then a hot mirror to send the UV back out from the EP end. Not sure how optically flat it will be, probably not very, but it's a project for next years season.
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Re: Budget 150mm ERF .... quark
Hi Neo ?,
I know this Mod with inside ERF.
Yours is an older Baader C-ERF, and its the correct ERF for a PST-Mod, dark violett-red when you look through.
Why you use an additional B&W IR/UV-Cut ?
sunny Greetings
Achim
I know this Mod with inside ERF.
Yours is an older Baader C-ERF, and its the correct ERF for a PST-Mod, dark violett-red when you look through.
Why you use an additional B&W IR/UV-Cut ?
sunny Greetings
Achim
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Re: Budget 150mm ERF .... quark
oh, thanks, now i understand it....
A very good Idea, i will speak with Oliver Smie and Wolfgang Lille about this Combination.
Do You have filtering Curves about this ?
sunny Greetings
Achim
A very good Idea, i will speak with Oliver Smie and Wolfgang Lille about this Combination.
Do You have filtering Curves about this ?
sunny Greetings
Achim