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Everything posted by RT65CB-SWL
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Hi @Bluemoonman and welcome to SGL. At £49.00 + P&P from FLO, I don't think you can get much better than these in terms of value... https://www.firstlightoptics.com/bst-starguider-eyepieces.html A useful tool/utility to play about with, is the... http://astronomy.tools/calculators/field_of_view/
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Hi @nft_photo_art and welcome to SGL.
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Same happens here at some GB/UK airports too!
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G’day @spcookiee and welcome to SGL. Ask mum & dad nicely and invest in some of these... https://www.firstlightoptics.com/bst-starguider-eyepieces.html
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When I flew from LGW to VAR in 1999 for the solar eclipse, LGW check-in/handling agent wanted me to place my ‘scope case, (which was your regular aluminium camera/photographer case), in the hold. I refused to do so. Through passport control & security, the x-ray machine operator/staff flagged it for closer examination/screening and asked: “What the hell is that?” He was a little ‘miffed’ when my LHR staff ID fell out of my pocket whilst I was getting my passport from my jacket pocket and muttering something. Upon departing VAR check-in staff, passport control & security, etc., I had no issues. One VAR airport x-ray machine operator/security staff said: “Nice telescope...” (referring to my TeleVue Ranger) “...You see eclipse?” The tripod, mount, 2x SLR’s, photo lenses, 6x rolls of 35mm film, photography bag, etc., went in the suitcase, protected by my clothes.
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Desert island telescope...
RT65CB-SWL replied to tompato's topic in Discussions - Scopes / Whole setups
There was a similar post started a few years ago. For me it would be my TeleVue Ranger, TV e/p’s, Lunt solar/Herschel wedge, etc., as per image below. -
The Great Conjunction of Saturn and Mars (and Venus, too)!
RT65CB-SWL replied to orion25's topic in Imaging - Planetary
Like the last two. The foreground/silhouette makes it more interesting. -
That is one hell of a diffraction spike! 😜
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Can anyone recommend a good lens polish?
RT65CB-SWL replied to RT65CB-SWL's topic in Getting Started General Help and Advice
Thank you @Peter Drew Thinking back, maybe I should have added a 'before' and 'after' image. I always regret posting topics after I have completed something! I do not think it has any coating that I can/could see, though the main objective lens element has. This too has had a 'gentle' clean with some Baader Optical Wonder. -
What's wrong with my telescope?
RT65CB-SWL replied to StuartT's topic in Getting Started With Imaging
I think it still needs a little tweak looking at the centre ones. Though the bright one at eleven o'clock looks OK. -
"You're havin' a giraffe!"* - said in faux 'Cockney'/'Eastenders' dialect! * translated: "One is having a good laugh!"
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Vixen dovetail threads
RT65CB-SWL replied to bosun21's topic in Getting Started General Help and Advice
Yes... they would be the 1/4"-20, 1/4" BSW or 1/4" Whitworth. The only metric thread that I know of that is 'compatible' with its imperial equivalent is... M10 = 3/8" -
I have recently cleaned my Photax 400mm telephoto lens and noticed the rear lens element is/was slightly cloudy/foggy. I removed the lens element and left it to soak in some acetone based nail polish remover for about six weeks, rotating the the lens and topping up the container every few days as it evaporates. Before that, I left it to soak in some undiluted bleach for two weeks and then some isopropyl and rinsed of with some distilled water in between and dried with cotton wool and lens cloth/tissue. Today I have given it a 'final' clean with some Baader Optical Wonder and it is still appears a little bit cloudy/foggy, but better than it was before. Can anyone recommend a good lens polish? ...or should I leave it as it is? Tnx in adv.
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Vixen dovetail threads
RT65CB-SWL replied to bosun21's topic in Getting Started General Help and Advice
...if 'Yes!' then they are 1/4"-20 threaded holes, as mentioned above by @Louis D Here in GB/UK 🇬🇧 they are called 1/4" BSW or 1/4" Whitworth. I would not use M6. -
Collimation tools
RT65CB-SWL replied to Chrissh's topic in Getting Started Equipment Help and Advice
No one has mentioned this… https://www.firstlightoptics.com/other-collimation-tools/rigel-aline-collimation-cap.html a collimation cap! -
His @Starprincess1966 / Chris and welcome to SGL.
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Silly me! I have just seen what ‘scope and mount you are using from the title, so ignore Q1. For now I would concentrate on the balance. From the description it sounds tail-end heavy. If it is, then you can add some weight to the front-end. Another solution maybe to attach a longer dovetail bar. Do not over tighten anything on the mount, as many ‘cheap’ mounts tend to use nylon/plastic gears. Over tightening risks stripping the teeth off the gears.
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Changing from Solar filters to solar wedge.
RT65CB-SWL replied to WilliamAstro's topic in Discussions - Eyepieces
When used with the Solar Continuum filter, Baader Solar Continuum Filter | First Light Optics - get used to seeing the Sun in green. Also adding another polarising filter, Baader Single Polarising Filter | First Light Optics is a good idea too. -
Cleaning - filthy corrector?
RT65CB-SWL replied to OK Apricot's topic in Getting Started General Help and Advice
I will second as to what @ollypenrice said. Once dry from the 'home-brew' recipe, repeat with the Baader Optical Wonder fluid. Using a dew shield may help to reduce the FOD*. Mak's and SCT's are notorious dew & dust magnets. * [F]oreign [O]bject [D]ebris -
Hi @Matttt and welcome to SGL.
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Hi @Daf and welcome to SGL.