Telescope Reviews: Re: It works! - CaK fluorescent eyepeice..

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nytecam
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Reged: 08/20/05
Posts: 5741
Loc: London UK

Re: It works! - CaK fluorescent eyepeice..
05/02/06 04:31 AM Attachment (97 downloads)

Quote:

It's Schott filter glass, type GG-420. The thickness I use is 1mm, which may be a bit too thin to keep its flatness for imaging purposes. I'd glue it between anti-reflection coated windows, the input side for the Ca-K line and the putput side for broadband green. Broadband visible AR coatings might work on both sides as well, though.

Thanks Bob - great news

As an aside I was mystified why my Conon Rebel with standard zoom in afocal mode recorded nothing of the CaK sun whilst my Minolta D7 would - until I realised the regular glass filter I use on both cameras to protect the front lens element from abrasion blocks light on the Canon - I was using a UV [sky] filter for lens protection and when removed all was fine.

Although working blind [eg no LCD preview] the Canon will record a full disk in afocal but I need to clean the dirt-sucking sensor

Here a quick+dirty sample for May 2 morning. Bright UV plage[?] near spot #879 not bright in H-alpha.

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Nytecam 51N 0.1W
Meade 30cm LX200+ETX-70+e-finder+C8+Ha+CaK PSTs SBIG SGS+homebuilt spectrographs
Starlight SXVF_M9+Lodestar CCDs/Canon 300D DSLR/Fuji E550
My observatory build-ETX-70 imaging-my videos

Post Extras

Entire thread
Subject	Posted by	Posted on
		12/31/69 07:00 PM
Re: It works! - CaK fluorescent eyepeice..	specscope	07/05/06 03:19 AM
Re: It works! - CaK fluorescent eyepeice..	nytecam	07/06/06 03:09 AM
Re: It works! - CaK fluorescent eyepeice..	specscope	07/07/06 05:45 AM
Re: It works! - CaK fluorescent eyepeice..	bill-in-forres	04/29/06 07:06 AM
Re: It works! - CaK fluorescent eyepeice..	LarryAlvarez	04/29/06 08:50 AM
Re: It works! - CaK fluorescent eyepeice..	AstroRon	04/29/06 01:47 PM
Re: It works! - CaK fluorescent eyepeice..	nytecam	04/29/06 03:35 PM
Re: It works! - CaK fluorescent eyepeice..	Jim Shaffer	04/29/06 04:15 PM
Re: It works! - CaK fluorescent eyepeice..	Caver451	04/30/06 02:02 AM
Re: It works! - CaK fluorescent eyepeice..	molniyabeer	04/30/06 04:12 AM
Re: It works! - CaK fluorescent eyepeice..	nytecam	04/30/06 05:30 AM
Re: It works! - CaK fluorescent eyepeice..	molniyabeer	04/30/06 06:21 AM
Re: It works! - CaK fluorescent eyepeice..	JAT Observatory	04/30/06 08:11 PM
Re: It works! - CaK fluorescent eyepeice..	WahHK	04/30/06 08:44 PM
Re: It works! - CaK fluorescent eyepeice..	nytecam	05/01/06 03:07 AM
Re: It works! - CaK fluorescent eyepeice..	cambert	05/01/06 06:02 AM
Re: It works! - CaK fluorescent eyepeice..	DAVIDG	05/01/06 10:07 AM
Re: It works! - CaK fluorescent eyepeice..	nytecam	05/01/06 05:09 PM
Re: It works! - CaK fluorescent eyepeice..	BobH1357	05/01/06 11:17 AM
Re: It works! - CaK fluorescent eyepeice..	nytecam	05/01/06 05:14 PM
Re: It works! - CaK fluorescent eyepeice..	BobH1357	05/01/06 09:44 PM
Re: It works! - CaK fluorescent eyepeice..	nytecam	05/02/06 09:06 AM
Re: It works! - CaK fluorescent eyepeice..	BobH1357	05/03/06 04:19 AM
Re: It works! - CaK fluorescent eyepeice..	nytecam	05/03/06 06:04 AM
Re: It works! - CaK fluorescent eyepeice..	Ralph Marantino	05/03/06 08:10 AM
Re: It works! - CaK fluorescent eyepeice..	DAVIDG	05/03/06 09:31 AM
Re: It works! - CaK fluorescent eyepeice..	MikeTaormina	05/03/06 10:54 AM
Re: It works! - CaK fluorescent eyepeice..	Ralph Marantino	05/03/06 11:06 AM
Re: It works! - CaK fluorescent eyepeice..	jgraham	05/03/06 05:21 PM
Re: It works! - CaK fluorescent eyepeice..	nytecam	05/04/06 01:21 PM
Re: It works! - CaK fluorescent eyepeice..	DAVIDG	05/04/06 04:44 PM
Re: It works! - CaK fluorescent eyepeice..	nytecam	05/05/06 08:17 AM
Re: It works! - CaK fluorescent eyepeice..	jgraham	05/05/06 09:18 AM
Re: It works! - CaK fluorescent eyepeice..	WahHK	05/04/06 02:50 PM
Re: It works! - CaK fluorescent eyepeice..	nytecam	05/04/06 04:26 PM
Re: It works! - CaK fluorescent eyepeice..	Ralph Marantino	05/03/06 06:35 PM
Re: It works! - CaK fluorescent eyepeice..	nytecam	05/02/06 04:31 AM
Re: It works! - CaK fluorescent eyepeice..	cambert	05/01/06 11:59 AM
Re: It works! - CaK fluorescent eyepeice..	Caver451	05/01/06 09:57 AM
Re: It works! - CaK fluorescent eyepeice..	nytecam	04/30/06 04:11 AM
Re: It works! - CaK fluorescent eyepeice..	nytecam	04/29/06 04:37 PM
Re: It works! - CaK fluorescent eyepeice..	MikeTaormina	04/29/06 03:18 PM

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