You are not logged in. [Login] Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar Observing >> Solar Previous   Index   Next   Threaded   Pages: 1 nytecam Post Laureate Reged: 08/20/05 Posts: 4664 Loc: London UK Walmart fluoro kit for CaK challenged..       #939615 - 05/03/06 12:39 PM Attachment (185 downloads) Edit   Reply   Quote Quick Reply   ... bought in Asda [=Walmart] lunchtime some Krazy Straws [green+blue not fluorescent], a Stabilo Boss fluoro pen kit and some Papermate pens in fluorescent casings for a few UK£. On right two yellow glass filters support Selotape strips stained with yellow fluoro pen, a stained piece of photo-emulsion and a fluoro clip from a pen. All these simple devises, when placed at the fieldstop of 25mm eyepiece [top right] on the Coronado PST CaK scope, convert the solar violet CaK light at 693nm to greenish light ~550nm that is readily seen by those who, like me, are near UV challenged. The fluorescent view at least x10 brighter with solar limb easily focused and all the plage features on the disk today seen with some effort aided by a black head cloth via the low power eyepiece. Without this fluoro aid the CaK sun, for me, an extremely dim deep violet blob with uncertainty in focusing even the solar limb. Experiments continue throughout the Forum to find an efficient 'filter' - for those who need it. Needless to say the CaK records a glorious blue in digicam but it's nice to get real photons on the retina in realtime -------------------- Nytecam 51N 0.1W Meade 30cm LX200+ETX-70+DS-2090+C8+Ha+CaK PSTs SBIG SGS+homebuilt spectrographs Starlight SXVF_M9/Lodestar/Canon 300D DSLR/Fuji E550 My observatory build-ETX-70 imaging-spectro page Post Extras:       Ralph Marantino Postmaster Reged: 05/01/05 Posts: 5032 Loc: Old Bridge, New Jersey Re: Walmart fluoro kit for CaK challenged.. [Re: nytecam]       #939675 - 05/03/06 01:26 PM Attachment (169 downloads) Edit   Reply   Quote Quick Reply   wow Nytecam I am starting to realize just how lucky I am to have had that cataract surgery I had to pay 5,000 over my insurance payment top the surgeon for the extra UV blocker "reding glass" eyeball inmserts I paid the money because for the first time in over 45 years I do not wear eyeglasses( contacts did not work for me cannot touch eyeballs to remove them) the Robin's egg blue calK Sun just an extra benefit -------------------- Lunt H-alpha LS200THaDS with 3200 blocker (Pre- ordered) Rockland Astronomy Club Member BAA Solar Section Central Appalachian Astronomy Club(Greenbank NRAO) Astronomical League DSPST,PST & 70mm Coronado Cal K telescope. 2 inch APM Herschel wedge I am on my third 11 year Solar Cycle. Post Extras:       nytecam Post Laureate Reged: 08/20/05 Posts: 4664 Loc: London UK Re: Walmart fluoro kit for CaK challenged.. [Re: Ralph Marantino]       #940698 - 05/04/06 05:48 AM Edit   Reply   Quote Quick Reply   You're very lucky Ralph - I wonder how many cataract patients appreciate their new vision especially in the near UV - very, very few I suspect . The only other astronomer, to my knowledge to have this surgery and comment on it, was the late Horace Dall - master optician and co-inventer of Dall-Kirkham Cassegrain scope amoung his many optical innovations like his prismatic devise for cancelling atmospheric dispersion in planetary imaging decades ago that hit S&T [again] 18 months back -------------------- Nytecam 51N 0.1W Meade 30cm LX200+ETX-70+DS-2090+C8+Ha+CaK PSTs SBIG SGS+homebuilt spectrographs Starlight SXVF_M9/Lodestar/Canon 300D DSLR/Fuji E550 My observatory build-ETX-70 imaging-spectro page Post Extras:       Ralph Marantino Postmaster Reged: 05/01/05 Posts: 5032 Loc: Old Bridge, New Jersey Re: Walmart fluoro kit for CaK challenged.. [Re: nytecam]       #940714 - 05/04/06 06:36 AM Attachment (158 downloads) Edit   Reply   Quote Quick Reply   wow you learn something every day thanks for the information -------------------- Lunt H-alpha LS200THaDS with 3200 blocker (Pre- ordered) Rockland Astronomy Club Member BAA Solar Section Central Appalachian Astronomy Club(Greenbank NRAO) Astronomical League DSPST,PST & 70mm Coronado Cal K telescope. 2 inch APM Herschel wedge I am on my third 11 year Solar Cycle. Post Extras:       DAVIDG Pooh-Bah Reged: 12/02/04 Posts: 1346 Loc: Hockessin, De Re: Walmart fluoro kit for CaK challenged.. [Re: Ralph Marantino]       #940862 - 05/04/06 09:47 AM Edit   Reply   Quote Quick Reply   Walter Scott Houston also had his cataracts removed. He commented in his Sky and Tel article that planetary nebula like M57 look blue again and also the sky was much bluer. It makes sense since the lens in the eye yellows with age and filters out the blue end of the spectrum. - Dave -------------------- Homemade 'scopes 8"f/7,6" f/5", 6"f/4, 4.25" Schief. 60mm Coronagraph,60mm H-alpha system, 4.25" White-light Solar Newtonian,solar spectroscope, 4.5" f/16 Schupmann Medial refractor, 14 Stellafane awards 7 in optics Engineering = Taking what you have and making what you need. Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 2 registered and 5 anonymous users are browsing this forum. 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