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127 ExcellentAbout pbyrne
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Proto Star
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Dun Laoghaire Ireland
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50in? Imagine the size of the camera. I have to leave it as is, it's just too funny, and embarrassing.
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Hi all I am looking to pick up a 50mm lens for astrophotography. I have seen the Canon lens on both f/1.4 and f/1.8 formats, there is about €100 in the price difference. Looking online, I have read how f/1.4 created curvature and is best stepped down to f/2 or f/2.8. What advantage, if any, is to be gained by going with the f/1.4? The camera is a Canon 5D mark ii. Thanks Paul
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Hi all I am thinking of picking up an 80mm ED refractor and while cruising around the Web I came across this scope: https://www.teleskop-express.de/shop/product_info.php/info/p8637_TS-Optics-Doublet-SD-APO-80mm-f-7---FPL-53---Lanthan-Objective.html It states that the FPL-53 glass is mated with lanthanum glass as the second element. FPL-53 controls CA very well, how will the addition of lanthanum glass improve the seeing? I intend to use it purely for visual.
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Hi all I am in the market for a 4" ED refractor for double star work, I want something small and portable that will sit nicely on my Skytee II mount. I was drawn to Altair Astro, I saw the review of their 102mm Starwave Ascent in Sky at Night magazine, now I am a little skeptical about magazine reviews, are they going to risk potential advertisement revenue by stating that a product is nothing better than a doorstep? Or are they going to be glowing in their praise even if that is not the case? No matter, maybe I am too much of a cynic. The Ascent 102 is sold at a fantastic price, £465
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Thanks for the responses. I am liking what I am hearing about the Skywatcher 120ED and I will keep my eye open for any second hand options.
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Skytee II mount.
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Hi everyone. That feeling we all get in the back of the neck from time to time is causing an itch and I don't know if I should scratch. My current set up is a 120mm f/5 Skywatcher Startravel with an older 120mm f/8 Evostar for lunar and solar work. I have seen the Explore Scientific 127mm ED Apo, f/7.5 and my mind is starting to wander and the credit card is whining in my wallet. https://www.telescope.house/en/Telescopes/EXPLORE-SCIENTIFIC-ED-APO-127mm-f-7-5-FCD-1-Alu-2-R-P-Focuser.html I can hear many people out there asking why not consider a reflector, but I am a refr
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COMPLETED - Meade series 4000 lens kit COMPLETED
pbyrne replied to Iceman120's topic in Sold / Expired Classified Ads
A general rule of thumb is 75% the cost of a new item, that depends on the condition, of course. -
COMPLETED - Meade series 4000 lens kit COMPLETED
pbyrne replied to Iceman120's topic in Sold / Expired Classified Ads
I believe that you are required to list a price, per the rules. -
COMPLETED - EQ5 Tripod SOLD SOLD SOLD
pbyrne replied to wookie1965's topic in Sold / Expired Classified Ads
Hi Paul What would postage come to? Paul -
That scope is a work of art.
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If it sounds too good to be true...
pbyrne replied to pbyrne's topic in Discussions - Scopes / Whole setups
I am certainly not bringing the integrity of seller into doubt, we are an honest lot in the astronomical community, and if I was in the market for such a scope, I would be checking it out, six hour round trip and all. I am sure someone is in for a bargain. -
If it sounds too good to be true...
pbyrne replied to pbyrne's topic in Discussions - Scopes / Whole setups
Here's the link to the ad: https://www.donedeal.ie/hobbies-for-sale/14-5-quot-dosonian-astronomical-telescope/24413241 The mirror looks good, though it is difficult to tell from a photograph. There is no name on the scope that I can see. I have no interest in buying the scope, in my mid 50s I don't think I want to be lugging this thing around and it would be wasted where I live, my garden is the place where the streetlights come for the fun, and they are all LEDs, which is worse again. I am sure the seller is genuine and maybe for the reasons stated wants it gone quickly.