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Everything posted by Kitsunegari

  1. Just attach a focal reducer on your camera if the seeing is not up to your standards.. The images look fine. Your scope was probably just too hot from being in the house and moving it out to the cold.
  2. That quark clearly is going to be way better than your lunt 80. The newton rings are pretty-much standard on all equipment nowadays, so dont fret over it. Just get a camera tilt adapter. Or downgrade to a CCD based sensor. place that quark in a a 127mm objective telescope and you will forget lunt even existed on day one. Save up for a baader planetarium 200mm D-erf filter paired with a 200mm coma free SCT and again, the tiny 80mm objective will be a relic from the past. based on this one picture, you are one of the chosen few that was provided an outstandi
  3. I agree, the second one in the most recent post is the most uniform. The issue is not with processing, it could realistically just be your focuser. Try using extension tubes and not the actual focus wheel on the scope. This will sort out any slack in the focuser if there is any, could be that simple.
  4. if this is an SF-50 etalon, I think you may need to focus attention to how it is mounted. It appears that it may not be "Squared" to the objective , (It should be flush mounted) There is some extreme banding which should not be there. This brand of etalons are supposed to be completely uniform across the entire field. If you are certain it is mounted properly, you may want to examine the blocking filter for oxidation and degradation. The images are great, but there is something up with the tune. of this setup, It would be in your great interes
  5. There are some filters on ebay sold by A_p_o_l_l_o which produce a "pseudo-double stack" at the eyepiece(1.5 angstrom). Apollo stripped ~9 angstroms off the usual mass produced blocking filter offered by lunt and coronado, Which is a huge amount of bandwidth. the difference between a second etalon is the additional stripping of 12 more angstroms before the eyepiece (depending on if you are shipped a good etalon). Apollo's filter is very close to getting a true double stack(thus the pseudo-prefexi). He developed that filter with Andover optical corp and its made in the USA.
  6. That first picture is wicked, the second one is a little off with contrast but still good. Alot of people have adopted the "stretch the histogram" . I never could get a usable image with that method.
  7. Little fluffy clouds. (terrible imaging conditions due to prescription forest burning) and this nasty one i actually like the pink, this is what George Washington's horse riding coat looked like. (YES, GEORGE WASHINGTON WORE A PINK COAT!!!)
  8. One more very important piece of information to always cling onto. Your ability to take pictures does not reflect the performance of the scope. Your visual ability has nothing to do with the performance of the scope. Like all things in life, there is always going to be someone with better skills and that is very important to understand in the world of solar observation. Your eyes cannot tell how bad an h-alpha scope performs, like a camera will immediately let you know there is something wrong. . (some people may have some unique ability like colorblind
  9. Maybe we can get some more people to offer some intellectual arguments about this, because realistically im going to also be buying a quark. The lunt scopes are certainly well worth every penny, and i have literally owned 7 of them looking for a "unicorn" both lunt and coronado are known for slipping out some government equipment to the public and the last 20 years really have provoked the fact that 10% of people that buy an h-alpha etalon get one that is superior to all others in the world. Then comes the quark, same deal. You are going to get a schoo
  10. If i was you, i would not bother at all with either of the 50mm or 60mm lunt scopes. Get a daystar quark and attach it on your 115mm triplet. Daystar seems to have sorted out most of the problems with the quark, and it really is not much more expensive. Just save you pennies for an extra month. (im about to sell my 50mm etalon because it just is not fun anymore for me after switching up to 127mm.) Just my two cents. Nothing beats high magnfication visual h-alpha, and with a full disk system you are just gonna be begging for more power almost immediately.
  11. How did the chameleon get damaged, did The cable bend too much at the input?
  12. Colder than a witches teet. and a bad optical test that shows just how awful some products are at 393nm..
  13. Absolutely stuff being ejected, similar to a geiser spraying at yellowstone national park in the united states. Sunpots are very similar to beach fronts, with "sandbars" or "dunes" that rise and fall with the tide.
  14. Only the 2x powermate is a telecentric. You are very lucky to not have problems, Most of us that own these do. Help with 2.5x Powermate - SolarChat! (solarchatforum.com)
  15. IT is a reflection off the televue optics and explore scientific optics because it happens on the moon with zero filters added. It goes away when you remove the second lens in the powermate, indicating that its the second lens....
  16. SDO | Solar Dynamics Observatory (nasa.gov)
  17. If i am not mistaken , LZOS built the best lens ever manufactured outside of a government agency. I would love to see what adding LIDAR could do for a cnc milling/polishing process. Probably would never need an interferometer report.... Especially after the magic formula was cracked How One Mathematician Solved a 2,000-Year-Old Camera Lens Problem (popularmechanics.com)
  18. i am envious of your 2.5x powermate. Mine is useless and applies a Large circle dead center in all my images, in fact 70% of televue powermate 2.5x owners have this problem when imaging and are quite upset about it... (not just the sun, its there on the moon too) Also; my explore scientific 3x tele-extender. has the same problem. Whoever is building these things are missing an important aspect of the design, i am starting to wonder if the products are actually counterfeit? Are you using an extension tube at all on the back of your powermate
  19. And yea, People really did use a string as a focuser... The Era of Long Telescopes | SpringerLink
  20. Strehl ratio changes with color. Usually telescopes are rated for one color of light, typically green. The hard truth here, is that a triplet / quadruplet telescope that was designed for visual use at 450nm -680nm maybe absolute garbage at 390nm. (very important to solar observation) Spectrally a little different for mirrors because they perform the most amazing at blue light, however spherochromatism is going to make or break your enjoyment with imaging and high magnification....
  21. Works great for night time too The first image is h-alpha, the second is calcium k-line. For the first image its a modified Lunt LS50C etalon that i put in a shroud for internal use. (normally is intended for external) That particular calcium filter is something that I developed and cannot be purchased (was my own development). Its called a Skybender.
  22. I love looking at old posts and reviving them! Just seeing the stargate telescopes by explore scientific really shows not much is needed other than the optics! I do not have any problems with the mount unless the wind kicks up to about 20mph, the entire scope weighs about 11kg.
  23. Here is my "big silver shiny zero baffle scope" that i point at the sun and get the images below.. . 250 years ago people literally mounted huge optics to a roof, tied a string to it, and literally tied the eyepiece to a string dangling from said roof optic. and brought it to their eye. No tube. No baffles. Nothing but 20 feet between them and the optic. You would be pretty surprised how good a 4000mm focal length optic pointed at the moon looks through an eyepiece attached to a string...... Strehl ratio is the division line factor of "are you ever gonna take a pictu
  24. Would you stand for a solid hour straight hunched over to look at a computer screen? Hey i just noticed you have a bresser 127/1200 ach. That telescope is identical to my explore scientific firstlight 127. HAve you tried it on your calcium filter yet? If the objective is anything like mine, its gonna be greater than .85 strehl at wavelength.
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