UV/IR cut on KG3 glass - Infrared Blocking Filter

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BelOptik_Oliver
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UV/IR cut on KG3 glass - Infrared Blocking Filter

Post by BelOptik_Oliver » Wed Feb 20, 2013 9:32 am

Hi everyone...

Infrared Blocking Filter - UV/IR cut on Schott KG3
http://en.beloptik.de/uvxir_cut_on_kg3_ ... ilter.html

Much further IR blocking range than classic UV/IR filter coating on BK7 or B270 substrates.
Clear skies! Oliver



Coronado PST, SM40 DS module, BF10, BF15

95mm F10 Chromat (aspheric corrected single lens), ERF105

120mm F8.5 Chromat (aspheric corrected single lens), ERF125

2.5x & 3x & 3.5x & 4.5x Telecentric, H-alpha system

"UV/IR cut on KG3" blocking filter

Prominence viewer with Ha or Hb filter

...and for the night: 8"f6 Lightweight-Newton (4Kg)

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marktownley
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Re: UV/IR cut on KG3 glass - Infrared Blocking Filter

Post by marktownley » Wed Feb 20, 2013 12:06 pm

This is perfect! thanks! :)
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Re: UV/IR cut on KG3 glass - Infrared Blocking Filter

Post by swisswalter » Wed Feb 20, 2013 4:49 pm

Hi Oliver

thank you very much, perfect. But there are UV/IR cuts which block 393 and 396. I would take just an IR block for the CaK jobs. The D-ERF from Baader blocks < 400 nm too
Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE :)

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Re: UV/IR cut on KG3 glass - Infrared Blocking Filter

Post by BelOptik_Oliver » Thu Feb 21, 2013 6:54 am

Hi Walter

CaK +H could almost going - see attachment...
So far I didn't yet checked this for calcium.

Clear skies! Oliver



Coronado PST, SM40 DS module, BF10, BF15

95mm F10 Chromat (aspheric corrected single lens), ERF105

120mm F8.5 Chromat (aspheric corrected single lens), ERF125

2.5x & 3x & 3.5x & 4.5x Telecentric, H-alpha system

"UV/IR cut on KG3" blocking filter

Prominence viewer with Ha or Hb filter

...and for the night: 8"f6 Lightweight-Newton (4Kg)

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Re: UV/IR cut on KG3 glass - Infrared Blocking Filter

Post by marktownley » Thu Feb 21, 2013 7:51 am

Intersting curve there Oliver regards the CaK - nice steep slope at 393nm, could have potential to tighten up the passband of a Baader K-line...

I'm away from home at the moment, but when I return I shall be placing an order for one of these filters.
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Re: UV/IR cut on KG3 glass - Infrared Blocking Filter

Post by sullij1 » Thu Feb 21, 2013 4:27 pm

Very interestng, I shall be watching Mark's results. Thanks Oliver!
( I knew you would have good suggestions :))
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Re: UV/IR cut on KG3 glass - Infrared Blocking Filter

Post by Merlin66 » Thu Feb 21, 2013 11:43 pm

I've ordered one of the UV-IR KG3 filters to test and trial on the various Ha scopes I have....
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https://groups.yahoo.com/neo/groups/ast ... scopy/info
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Re: UV/IR cut on KG3 glass - Infrared Blocking Filter

Post by marktownley » Thu Feb 21, 2013 11:57 pm

Excellent stuff Ken, I will be doing the same in the next couple of days, we will have to compare notes ;)
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Re: UV/IR cut on KG3 glass - Infrared Blocking Filter

Post by marktownley » Thu Feb 21, 2013 11:58 pm

Hi Oliver,

I have a question - what thickness is the KG3 in this filter?

Thanks,

Mark :)
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Re: UV/IR cut on KG3 glass - Infrared Blocking Filter

Post by MjrTom » Fri Feb 22, 2013 12:06 am

Very interested in the outcome. I am looking for an ITF so I can re use the blocking filter off my PST (an original style USA one with no separate ITF) instead of using the Lunt B600 off my LS35T.

Mark
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Re: UV/IR cut on KG3 glass - Infrared Blocking Filter

Post by swisswalter » Fri Feb 22, 2013 5:10 am

Hi Oliver

thank you for that nice curve. It looks indeed promissing. Let's see what the firt results from Mark and Ken are
Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE :)

from 7 am - 7 pm http://www.nanosys.ch

from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa ;)

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Re: UV/IR cut on KG3 glass - Infrared Blocking Filter

Post by BelOptik_Oliver » Fri Feb 22, 2013 8:34 am

Hi Mark

Thickness of filter is 2mm +/-0.1mm tolerance.

@Ken
Thanks! Filter will be sent today.
Clear skies! Oliver



Coronado PST, SM40 DS module, BF10, BF15

95mm F10 Chromat (aspheric corrected single lens), ERF105

120mm F8.5 Chromat (aspheric corrected single lens), ERF125

2.5x & 3x & 3.5x & 4.5x Telecentric, H-alpha system

"UV/IR cut on KG3" blocking filter

Prominence viewer with Ha or Hb filter

...and for the night: 8"f6 Lightweight-Newton (4Kg)

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Re: UV/IR cut on KG3 glass - Infrared Blocking Filter

Post by colinbm » Fri Feb 22, 2013 8:50 am

Oliver I will order one mid next week too please.
Can you let me know the postage to Australia.
Col

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Re: UV/IR cut on KG3 glass - Infrared Blocking Filter

Post by marktownley » Fri Feb 22, 2013 8:53 am

Hi Oliver, thanks for that. Looking on your website can't see how to pay - can I paypal you?

Mark
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Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!

BelOptik_Oliver
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Re: UV/IR cut on KG3 glass - Infrared Blocking Filter

Post by BelOptik_Oliver » Fri Feb 22, 2013 2:11 pm

@Col
Makeable - shipping to Australia is 5.50 EUR (registered mail)

@Mark
Yes, I accept Paypal in EUR & USD.
Clear skies! Oliver



Coronado PST, SM40 DS module, BF10, BF15

95mm F10 Chromat (aspheric corrected single lens), ERF105

120mm F8.5 Chromat (aspheric corrected single lens), ERF125

2.5x & 3x & 3.5x & 4.5x Telecentric, H-alpha system

"UV/IR cut on KG3" blocking filter

Prominence viewer with Ha or Hb filter

...and for the night: 8"f6 Lightweight-Newton (4Kg)

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sullij1
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Re: UV/IR cut on KG3 glass - Infrared Blocking Filter

Post by sullij1 » Fri Feb 22, 2013 9:02 pm

Hello Oliver,

I just sent you an email regarding the KG3 filter. Please email me instruction for payment.

Thank you,

Joe
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Re: UV/IR cut on KG3 glass - Infrared Blocking Filter

Post by colinbm » Sat Feb 23, 2013 7:40 am

Thanks Oliver
I will send am order by email mid next week thanks.
Col

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Re: UV/IR cut on KG3 glass - Infrared Blocking Filter

Post by BelOptik_Oliver » Sat Feb 23, 2013 8:23 am

:) Thanks Joe & Col
Clear skies! Oliver



Coronado PST, SM40 DS module, BF10, BF15

95mm F10 Chromat (aspheric corrected single lens), ERF105

120mm F8.5 Chromat (aspheric corrected single lens), ERF125

2.5x & 3x & 3.5x & 4.5x Telecentric, H-alpha system

"UV/IR cut on KG3" blocking filter

Prominence viewer with Ha or Hb filter

...and for the night: 8"f6 Lightweight-Newton (4Kg)

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swisswalter
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Re: UV/IR cut on KG3 glass - Infrared Blocking Filter

Post by swisswalter » Sat Feb 23, 2013 8:31 am

Hi Oliver

I'm convinced too and will send you an order
Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE :)

from 7 am - 7 pm http://www.nanosys.ch

from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa ;)

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