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About pbyrne

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    Dun Laoghaire Ireland

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  1. Thanks for the recommendations, guys, they look to be just the ticket.
  2. Hi all Just dipping my toe into astrophotography and I am looking for a good book that will help me through my initial sojourn. I have watched many Youtube videos and read online articles, but I am one of those people who like a book I can dip in and out of. Any suggestions most welcome.
  3. 50in? Imagine the size of the camera. I have to leave it as is, it's just too funny, and embarrassing.
  4. 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
  5. 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.
  6. 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
  7. 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.
  8. 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
  9. A general rule of thumb is 75% the cost of a new item, that depends on the condition, of course.
  10. I believe that you are required to list a price, per the rules.
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