Search found 54 matches

by Sungazer
Mon May 03, 2021 4:54 pm
Forum: Solar Astronomy Shop and Swap
Topic: Andover Ha Filter
Replies: 1
Views: 112

Andover Ha Filter

For Sale , Andover Corp Optical Filter. No 656FSO3-12.5. MM. AM 94410. Ser No 08. This was purchased for a project Solar scope. But was not ever used. This comes with a light transmission sheet showing exact cut off, for the actual filter. Photos of filter and transmission sheet ,upon request .. I a...
by Sungazer
Mon Apr 13, 2020 9:57 am
Forum: This is SolarChat !!
Topic: Forum upgrades finally completed. sort of
Replies: 17
Views: 3623

Re: Forum upgrades finally completed. sort of

Thank you for the upgrades etc, :bow
I use this information daily to keep up with all the Solar events. , Keep well with all the world problems around u# all. John.
by Sungazer
Fri Nov 01, 2019 9:14 am
Forum: This is SolarChat !!
Topic: Which etalon is better? Please, look, think and vote.
Replies: 12
Views: 1932

Re: Which etalon is better? Please, look, think and vote.

Hi Valery, After looking carefully,in my opinion the first one is more appealing,and has very slightly better definition. Though there is not a lot to of difference, probably a personal choice. I just wish my scope would be that good !!!! John. :bow
by Sungazer
Sat Oct 19, 2019 9:04 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: anyone know about this guy
Replies: 6
Views: 2179

Re: anyone know about this guy

Hello All, I had the privilege of using the Spectrhelioscope when Mr Hatfield was still with us, it was one of the things that made me take up Solar viewing! This was a very clever construction from many bits left over from the war etc.and eventually led to me having an 4” F 22 ERF LENS made by the ...
by Sungazer
Sun Nov 12, 2017 9:02 am
Forum: Solar Astronomy Shop and Swap
Topic: Lumicon Ha filter .
Replies: 2
Views: 2468

Re: Lumicon Ha filter .

Will do,Many thanks,John.
by Sungazer
Sat Nov 11, 2017 9:13 am
Forum: Solar Astronomy Shop and Swap
Topic: Lumicon Ha filter .
Replies: 2
Views: 2468

Lumicon Ha filter .

Hi I have been given an old Lumicon Ha filer with ERF for a SCT ,BUT no instruction book/sheet. Has anyone got one of the filters with info sheet,and could Email me a copy, I would be most grateful :bow2 ,John.
by Sungazer
Thu Oct 26, 2017 5:40 pm
Forum: This is SolarChat !!
Topic: Total Solar Eclipse 2017 my final version
Replies: 13
Views: 2226

Re: Total Solar Eclipse 2017 my final version

Fantastic final image,wish I could have been able to get to U.S.A. for the eclipse.j.L.
by Sungazer
Thu May 11, 2017 8:38 am
Forum: This is SolarChat !!
Topic: Can you guess???
Replies: 22
Views: 2647

Re: Can you guess???

A very interesting project,with many problems yet to resolve. I will be very interested when it is UP and recording.All the best.
by Sungazer
Tue May 09, 2017 8:13 am
Forum: This is SolarChat !!
Topic: The "Sunbeam 14"
Replies: 21
Views: 2977

Re: The "Sunbeam 14"

Most impressive,I am sure this will be much used,wonderful definition.All the best for the future,J L.
by Sungazer
Wed Oct 05, 2016 9:10 am
Forum: Solar Scope Modifications
Topic: SolarMax internal etalon size (old SM70 and SM90II)
Replies: 14
Views: 6541

Re: SolarMax internal etalon size (old SM70 and SM90II)

Many thanks Bob for the very informative photos of Etalon production. I had often wondered how they where manufactured. Quite a change from,The old system of half plates and Polaroid sheets interleaved ,which was used in the 1960s. D :bow2
by Sungazer
Wed Jul 27, 2016 9:07 am
Forum: This is SolarChat !!
Topic: USER POLL CONCERNING NEW HOST.....PLEASE RESPOND!!!
Replies: 23
Views: 3249

Re: USER POLL CONCERNING NEW HOST.....PLEASE RESPOND!!!

Hi, I am very happy with the new system,and do not need any more image space. Very many thanks for all your efforts,in setting up the new server,kind regards,John. :bow2
by Sungazer
Fri Jul 08, 2016 7:36 am
Forum: This is SolarChat !!
Topic: An Unexpected Transit
Replies: 13
Views: 1340

Re: An Unexpected Transit

Must have been close encounters for those on board !!!!! A very nice video,kind regards,John. :bow2
by Sungazer
Fri Jun 24, 2016 5:47 pm
Forum: This is SolarChat !!
Topic: Today's very quiet SUN (20160624)
Replies: 5
Views: 807

Re: Today's very quite SUN (20160624)

Very nice for a spotless day,John.
by Sungazer
Mon May 09, 2016 2:54 pm
Forum: This is SolarChat !!
Topic: Transit of Mercury, Ha
Replies: 7
Views: 1277

Re: Transit of Mercury, Ha

VERY good timing,just seen the mid transit in white light.John. :bow
by Sungazer
Sat Apr 30, 2016 7:27 pm
Forum: This is SolarChat !!
Topic: Fibrils Flower on the Sun. 280mm aperture. NEW IMAGE added!
Replies: 23
Views: 2002

Re: Fibrils Flower on the Sun. 280mm aperture represents.

Unbelievable definition, very well done. Kind regards,John. :bow
by Sungazer
Mon Apr 11, 2016 5:43 pm
Forum: Solar Astronomy Shop and Swap
Topic: P.S.T Tube.
Replies: 3
Views: 2645

Re: P.S.T Tube.

Many thanks Mark, I have found one locally. This solves my problem.John.
by Sungazer
Sun Apr 10, 2016 2:27 pm
Forum: Solar Astronomy Shop and Swap
Topic: P.S.T Tube.
Replies: 3
Views: 2645

P.S.T Tube.

Seeking a PST gold tube,in any condition needed for a mod alteration. Fair price paid. Please Email if you have one available ,thank you ,John.
by Sungazer
Mon Mar 14, 2016 9:02 am
Forum: Solar Scope Modifications
Topic: Took one for the team. (pressure tuner guts)
Replies: 5
Views: 3454

Re: Took one for the team. (pressure tuner guts)

Very interesting and useful information .Thanks for posting the pictures .i am glad it all went back correctly . John. :hamster:
by Sungazer
Fri Oct 16, 2015 12:17 pm
Forum: Solar Scope Modifications
Topic: Rusty BF5
Replies: 7
Views: 3142

Re: Rusty BF5

Hi Brian, The two holes,which you should unscrew ,using a pair of strong dividers,the locking glue is very tight to undo. When you remove the old filter try and make sure you put the new one the same way up. John.
by Sungazer
Sat Oct 03, 2015 10:41 am
Forum: Solar Scope Modifications
Topic: Rusty BF5
Replies: 7
Views: 3142

Re: Rusty BF5

Hi Brian ,The tube that screws into the body has to be removed, VERY tight usually, but a boa strap may help. When removed you will find a glued ring with 2 holes which has to be removed,use a pin punch with care, then remove old ITF and replace with the new one.
Hope this help, John.
by Sungazer
Sat Oct 03, 2015 7:44 am
Forum: Solar Scope Modifications
Topic: Rusty BF5
Replies: 7
Views: 3142

Re: Rusty BF5

Hello Brian, You can obtain a new ITF filter, which is a straight swop, from Maier Photonics inc, in the USA, mine cost about £55 delivered. Might be slightly different because of exchange rates. This will transform your scope to as good as new.
Hope this might help,
John.
by Sungazer
Tue Sep 29, 2015 7:41 am
Forum: This is SolarChat !!
Topic: AR2422 good seeing ! 204 mm refractor WL
Replies: 15
Views: 1241

Re: AR2422 good seeing ! 204 mm refractor WL

First class results, congratulations, John.
by Sungazer
Wed Sep 16, 2015 1:44 pm
Forum: Solar Scope Modifications
Topic: Best donor scope for pst mod?
Replies: 8
Views: 4108

Re: Best donor scope for pst mod?

Hi Fenrir, I have had this problem but was able to find a -98mm lens, which can be made to fit into the front of a PST etalon. These were, and most likely , still are available from Surplus Shed, in the U.S.A. at a very modest cost. Also -129 mm ,which seem to have less distortion than the -98 mm . ...
by Sungazer
Wed Aug 26, 2015 11:13 am
Forum: This is SolarChat !!
Topic: Today's SUN (20150825) with EXCEPTIONAL SEEING
Replies: 9
Views: 852

Re: Today's SUN (20150825) with EXCEPTIONAL SEEING

Fantastic results,very well done Pedro.
by Sungazer
Fri Jul 31, 2015 8:35 am
Forum: This is SolarChat !!
Topic: Only Stardust In The Wind - Farewell My Friend...
Replies: 98
Views: 8993

Re: Only Stardust In The Wind - Farewell My Friend...

So sorry to hear the unexpected news,a great loss to his family,and all the Solar community. R.I.P.