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ddufresne50

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Everything posted by ddufresne50

  1. Thanks Ed. My son. Just wants to learn. The constellations. Clusters. And look at. The moon. He is beginner. Like I was. When I was 12. But when I was 12 I started. With the classic. Criterion. Rv-6 dynascope that got me hook especially on. The. Planets.
  2. I wanted to genome of these. Edmund astroscans. For my son. But are the older American. Made and Japan. Ones better optically than these. New china made ones. They. Have now. Let me know. Dale
  3. I don't have 50 inch on the back of my mirror but the person I bought it From said it was a f/8.3 focal ratio which would be 1261 focal length the tube is 50 inches long too thanks john
  4. I have a old criterion 1960,s 6f/8!scope And in the older ads they say the focal length was 1216 mm But it says in the older sky&teleacope Books it was a f/8.3 Not a f/8 if you go by f/8.3 it has 1261 mm focal length Does anyone have a older criterion RV-6 scope Dale
  5. I have never bought a Edscorp Edmund orthoscopics made I n Japan Has anyone tried these Edscorp orthos? I have all UO orthoscopics Is there any difference in them? Dale
  6. You right konings work well with anything at f/7 or slower The fov is almost sharp to the edge in my f/8.3 scope
  7. I bet They are made from the same Japanese company my Antares 12.5 mm flat top ortho looks just like them and even my UO 6mm HD ortho they are all excellent in sharpness and contrast and worth every Penny on the planets For sure dale
  8. John I love my UO 12mm konjng really sharp to the edge Great for globulars at 105x And flat field In my RV-6 scope
  9. The 18mm UO ortho is sharper all the way to the edge while the Meade 18mm swa 4000 suffers a little on that the eye relief seems more easier with the Otho Than the Meade 18mm swa I prefer the 18mm UO ortho since I can used my 3x tri mag Barlow on it to give me a better view of the planets
  10. Ok I will try it with my orthos The my konings when I get a clear Night
  11. John I let you know how it performs I know I can unscrew the bottom part with the lens and screw it on the end I any eyepiece and it would act as a 1.5x Barlow lens
  12. No I just got my Orion Japan version 3x tri mag Barlow when I get a clear night I will try it out its been hazy bad skies and hot here dale
  13. Thanks anyway Rowan But I just got this Orion Japan 3x tri mag and will try it out soon I heard I can unscrew The lens part and put it and screw it into an eyepiece and it will act as a 1.5x Barlow Not bad Dale
  14. Thank John yep it's a Japan One and probably has no false Colors at all on any object so I let you know and I will try to out I also have a Japan 2x celestron ultima Barlow lens too
  15. I believe to its always a speck here and there after you clean it that was not there before I clean all 4 lenses Dale
  16. I don't think it will bother me looking at the planets Or deep sky? And I only see it off axis I mean turning the eyepiece on an angle towards a bright light and not in dimmer Light
  17. I been cleaning eyepieces taking them apart for 30 years but its always tough sometimes on some eyepieces where after you clean them and put them back together and you look they it towards a bright light you see different dust specks that was not there before I clean my UO 16mm konjng A 4 element and always I have very small speck Does that effect viewing for anyone like looking at the moon? These spots are tiny in a 68 fov so I think I leave it an not mess or scratched the lenses on the eyepiece dale anyone has suggestions?
  18. I have not tried the Orion 3x tri-mag Barlow lens yet but mine is made in Japan where I think Orion sells them now that is from china? I must have the first ones Made over 10!years ago
  19. I just got it just never used it yet I heard you can unscrew the lens part and put it on the end of an eyepiece and it would act as a 1.5x Barlow I have to check that out Dale
  20. I already have a nice celestron 2x Japan ultima Barlow but looking for a 3x Barlow So how out the Orion tri mag Japan Barlow? Are they any good? Kind of on a tight budget so does anyone recommend a 3x like the tri mag Barlow from Orion? Dale
  21. I sometimes just do planetary observing so just my UO abbé orthos I used if I go to deep sky then I go with my 5 TMB or my 4 UO konings That I have
  22. I just find with the smaller apertures the O-3 filter was to narrow for them but I guess it works differently with other scopes in my 6RV-6 the skyglow and ultrablock are ok I know that I need to used a filter in my light polluted Skies here and any filter will help me out on objects like emission And planetary nebulae I also have a discovery 10f/6 scope I used a filter on to Dale
  23. If you have a scope that is less than 6 inches do not get the O-3 or ultrablock or narrowband filter It will diminished a lot of the nearby stars the Skyglow Orion broadband Is perfect for my 6 inch scopes The O-3 filter is a very specializes filter for certain objects and are great in 10 inch scopes or bigger The veil nebulae and North American Nebulae are great in a O-3 Dale
  24. Thanks I still will try the 24mm it may not be as bad as it seems in them with my 6f/8 scope
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