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Multicoated Vs Fully Multicoated

Discussion in 'Eyepieces, Barlows, and Filters' started by Pleiades, Jul 5, 2018.

Multicoated Vs Fully Multicoated

Started by Pleiades on Jul 5, 2018 at 1:17 PM

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  1. Pleiades

    Pleiades Well-Known Member

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    I noticed that Meade, and Orion say multicoated, while Celestron Omni and GSo, say fully multicoated. I wonder what surfaces didn't get the coatings in the Orion / Meade. Which, look very similar. Hmmmm.

    Comparing the Plossl EP's
     
  2. Mak the Night

    Mak the Night Well-Known Member

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    I think it's just a marketing term.
     
  3. Pleiades

    Pleiades Well-Known Member

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    Probably....
     
  4. Mak the Night

    Mak the Night Well-Known Member

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    Probably all pork pies ...
     
  5. Nebula

    Nebula Well-Known Member

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    The same thing happening with the double edge razor blade, all companies get a special name for theirs like:

    Platinum, super platinum, Silver blue, Super stainless, Chrome platinum, Superior stainless, etc (I even find this funny a bit)

    https://www.amazon.com/Double-Edge-...pID=51JILsV2SnL&preST=_SX300_QL70_&dpSrc=srch

    https://www.amazon.com/Double-Razor...pID=51mDZFB6lML&preST=_SY300_QL70_&dpSrc=srch

    So far my favorites for shaving are Gillette Silver blue and the Gillette 7 O'clock super stainless, has well has the Astra superior platinum.. ;)

    Very off topic. :)
     
  6. Pleiades

    Pleiades Well-Known Member

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    Nebula,I know it defies logic, but I can only use one razor. Gillette sensor. Any thing else kills my face. This may be due to my genetics. I don't grow much body hair. My father is Arapahoe, so no beards or mustaches for us.
     
  7. Gabby76

    Gabby76 Well-Known Member

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    Coated: at least one optical surface has a single layer coating.
    Fully coated: all surfaces have a single layer coating.
    Multi-coated: at least one surface has a multi-layer coating.
    Fully multi-coated: all surfaces have multi-layer coatings.

    Do not get to wrapped up over the terminology, some shops ad copy is not accurate either such as listing eyepieces as fully multi-coated when they are not or even the reverse.
    Pentax and Nikon are only multi-coated and Brandon eyepieces are only single layer coated on the air side of the eye lens and they all perform very well.
     
  8. jgroub

    jgroub Well-Known Member

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    +1 to what Gabby said. As long as there are some coatings, it's not going to be too much different from a fully multi-coated EP. Not so different that your eyes would be able to discern the difference, anyhow.
     
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  9. Mak the Night

    Mak the Night Well-Known Member

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    Yeah, I think that sums it up. I have a 6mm 'Solomark' Plossl which has a basic coating. It's a bit blue to look through sometimes, but it's sound as a pound in anything f/6 and slower.
     
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  10. Pleiades

    Pleiades Well-Known Member

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    Good to know
     
  11. Dave In Vermont

    Dave In Vermont Well-Known Member

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    Same reasons I have 5 telescopes - some excel in this, that, etc. While another excels in that, this, etc. No one size fits all. Same with eyepieces. And filters, of course! :p

    When someone (often) asks me they want to get their first telescope, and ask me what to get - I'll ask them lots of questions. I'm about ready to print-out a 'questionaire!'

    I've been suggesting a Maksutov 127mm more than anything else these days.

    Have fun!
     
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  12. Mak the Night

    Mak the Night Well-Known Member

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    Solomark, or more accurately, Yuyao Qihang Optical Instrument Co., Ltd. in Zhejiang, market products under several brand names (including Gosky).

    IMG_20170505_124039.jpg

    I bought a couple of these, mainly as I wanted the brass drawtubes which are good quality. They were marketed on Amazon as being 'Blue film Fully coated' although it's pretty obvious its a basic coating. For some reason Amazon UK keeps taking me to the 10mm version.

    MaxthonSnap20180707121614.png

    I think I took one of them to pieces lol.

    IMG_20170505_124609.jpg
     
  13. Dave In Vermont

    Dave In Vermont Well-Known Member

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    So keep the drawtube & throw-out the rest? :D! :D!

    Maybe they should hire you for their advertising - dept!

    "Something For Everyone!"
     
  14. Mak the Night

    Mak the Night Well-Known Member

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    They're really nice drawtubes.
     
  15. Dave In Vermont

    Dave In Vermont Well-Known Member

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    An interesting experiment: Remove a really cheap eyepiece's top. Screw it onto a TeleVue® eyepiece. And shop it around re-capped as the cheapie! Collect the opinions.

    Then do the same thing in reverse - $10 EP - now screwed into the TeleVue® cap. Collect results.

    Fascinating.....



    bpsD3Im_1_.gif
     
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  16. Pleiades

    Pleiades Well-Known Member

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    When its rainy or clouded and I can't view, I buy EP's. My wife is about to send me to a psychiatrist.
     
  17. Dave In Vermont

    Dave In Vermont Well-Known Member

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    Tell her you've been good. So far....

    Now put a TeleVue® catalog and price-list next to the toilet.

    Then take her out for dinner and a good flick down at the Bijou.

    <say "Phew!">

    Congratulations! You ducked that one, Cowboy! :p
     
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  18. Mak the Night

    Mak the Night Well-Known Member

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    Thing is, I dislike aluminium drawtubes, especially with undercuts. They're fiddly for me. It's difficult to obtain decent drawtubes here, so buying cheap EP's that I know have good drawtubes works out. Plus, I have more money than sense anyway lol.
     
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  19. Dave In Vermont

    Dave In Vermont Well-Known Member

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    Sounds like a good plan to me! LOL
     
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  20. Mak the Night

    Mak the Night Well-Known Member

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    The 'Solomark' Plossl was actually pretty good in and f/6 Newtonian and I got 300x on the Moon. I think at least one of the Solomark drawtubes adorns a 7.5mm Barsta Plossl now.

    The drawtubes are well made chromed brass, with good threads and baffling. They're probably worth more than the glass anyway lol.
     
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