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ultra wide field telescopes.

Discussion in 'Telescopes and Mounts' started by kevan hubbard, Jun 21, 2018.

ultra wide field telescopes.

Started by kevan hubbard on Jun 21, 2018 at 4:32 AM

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  1. kevan hubbard

    kevan hubbard Well-Known Member

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    kevan hubbard, Jun 21, 2018
    #1
    I have recently been looking at the 3 types of ultra wide field binoculars available, generally 2.1x42 and are really just huge opera glasses but give massive fields of view.there seem to be 3 main makers,Kasai, vixen and omegaton,first 2 Japanese other unknown origin (China?). Russia or rather the USSR seems to have made them too and the brand name is in Cyrillic script which I can't decrypt! Oh and Nikon possibly made some too?however I came across a 5x30 Opticron monocular.this should give a huge field of view and a 6mm exit pupil. I've owned the 8x30 variant of it and can report it is very high quality and has coated,green,prisms.Opticron call the 5x30 a golf scope,but looking at wide views of the Sagittarius star fields won't put you to sleep unlike the worlds most land intensive and boring sport!why I'd rather watch paint dry than watch golf!
     
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  2. Dave In Vermont

    Dave In Vermont Well-Known Member

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    Dave In Vermont, Jun 21, 2018
    #2
    Heya Kevan? You can use Google-Translate to "decrypt" Cyrillic easily:

    https://translate.google.com/

    I use it all the time! It's opened a whole new world for me. In Nepali too!


    दुई आँखा खुल्ला साथ मजा गर्नुहोस्। नेपालीमा कम!

    :cool:

    ps - and it's quite accurate - according to those with whom I communicate in a variety of languages.
     
  3. kevan hubbard

    kevan hubbard Well-Known Member

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    kevan hubbard, Jun 22, 2018
    #3
    That Nepali looks rather like Hindi or Bengali.I'm guessing Nepali belongs to the indo European family and distantly related to the language I'm typing this in now?the southern part of the Indian subcontinent tends to us Dravidic languages, ie/Tamil, which are unrelated to Hindi, Urdu, etc..interestingly the people of south India share much genetics with Australian aborigines. The brand my Russian binoculars are sold under is often called tento in English. I had then on the beach last night and could clearly see Saturn's rings with them.although holding them still is not possible for more than a second.
     
  4. Mak the Night

    Mak the Night Well-Known Member

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    Mak the Night, Jun 22, 2018
    #4
    I'm not sure who 'Omegaton' are, unless you mean 'Omegon' which is a house name used by Astroshop.

    75a6df01-527d-4fa5-8d6c-a1ea8489d8b1.png

    https://www.astroshop.eu/instrument...d-binoculars-for-star-field-observing/p,50354

    I doubt these are actually manufactured by 'Omegon' and these wide-field bino's are probably made in China and marketed under several names. I'm pretty sure they aren't made by Long Perng. A lot of optical products supposedly manufactured by 'Omegon' are also marketed as 'Kasai', particularly Maksutov scopes.

    7b708256-868e-424f-8349-4839d3897d3c.png

    https://www.365astronomy.com/Kasai-...lean-Binoculars-2.3x-with-40-mm-Aperture.html

    I was quite disappointed with my 'Omegon MightyMak' and several people have been similarly underwhelmed by the 'Kasai Pico' Mak equivalent. I don't know how the Kasai/Omegon wide-field bino's compare to the Vixen ones. As I'm fairly convinced Kasai (purportedly Japanese) don't actually manufacture anything I'd bet the OEM is in the PRC.
     
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  5. Dave In Vermont

    Dave In Vermont Well-Known Member

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    Dave In Vermont, Jun 22, 2018
    #5
    Thanks for the reply, Kevan. I, too, think it's not "Nepali"- but Hindi. But we're dealing not with linguists in Google-Translate, but people who write a good algorithm.

    As for the Tento binoculars, what size are they? If they will reveal the rings o' Saturn, they must be monsters! :p Recently I bought a monopod from Orion. I was expecting some rather poorly constructed joke for the $39.99 cost - but Lordy! Was I ever surprised! I'm still a very happy camper with what rolled in! I remain firmly convinced it was the best $40 I've spent in recent memory! Not only is it very well made and tight fitting, it's two things: A great stand-up support for big binocs,' it's also a very nice table-top tripod for small scopes and a regular-sized pair of binoculsrs such as 7 X 50mm. And no - I don't own stock in Orion! :D

    Here's a link:

    https://www.telescope.com/Orion/Mou...n-Head/rc/2160/pc/-1/c/2/sc/1910/p/116403.uts

    Your Russian Tento's sound great! I'd hang onto those if I were you.

    Enjoy!

    Dave
     
  6. kevan hubbard

    kevan hubbard Well-Known Member

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    kevan hubbard, Jun 22, 2018
    #6
    Yes omegon it is!got the spelling wrong. trying to spell a who bunch of places in Greenland now too in preparation for next months trip,very difficult tounge twisters. The Danish names,now dropped, where much easier except for the natives!the omegon binoculars and vixen look the same but then there's a huge price difference so there must be some internal difference and better coating, etc?a man,in a review, of the vixens used these to scan the milky way star fields from the Namib rand,funnily enough in Namibia (about 300km south of Windhoek) and was mightly impressed by the views. Those tento Russian binoculars are 20x60 and at 20x Saturn's rings can be seen but obviously not the divisions and such like.they showed Mars as a red orb, Jupiter a white disk with 3 moons to it's right,Venus had set by the time I went out(midnight local time). A sturdy tripod is the way forward for the tentos but at a cost of mobility. The vixen 2.1x42s have made in Japan on them.
     
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  7. Dave In Vermont

    Dave In Vermont Well-Known Member

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    Dave In Vermont, Jun 22, 2018
    #7
    Oh my! Mak - those Omegon's look absolutely hideous! :eek: :p Both pair. That first "thing" look to be something that either a full-ride of the Hells' Angels stomped on, thinking it was a Beer-can at a beer-blast in the California Desert, or an Elephant did!

    I'll pass on those tyvm... :eek:
     
  8. Mak the Night

    Mak the Night Well-Known Member

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    Mak the Night, Jun 22, 2018
    #8
    A lot Omegon stuff is quite reputable (GSO/Barsta), sadly, a lot isn't. :eek:
     
  9. Mak the Night

    Mak the Night Well-Known Member

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    Mak the Night, Jun 22, 2018
    #9
    You reckon? ;)
     
  10. kevan hubbard

    kevan hubbard Well-Known Member

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    kevan hubbard, Jun 22, 2018
    #10
    Omegon Usually gets good write ups.I've just been musing about the Opticron 5x30 golf scope,is it designed to watch golf or for golfers to see where their balls went?....or both?the field of view would be very wide.I had a celestron mini mak,can't remember the model,it was no good.terrible field of view I rigged it up at my parents to watch the transit of mercury using thousand oaks solar film but the field even at the lowest magnification was so narrow that I couldnt find the sun!we ended up taking off the solar film and putting it on my 8x25 and 10x42 monoculars and watching it that way,the sun being easy to find in the monoculars.
     
  11. Mak the Night

    Mak the Night Well-Known Member

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    Mak the Night, Jun 22, 2018
    #11
    Omegon is just a name. I have a Barsta Barlow with Omegon written on it. They weren't marketed in my country for a while. I could buy one now as a 'BST' for less than half what I paid for it with Omegon written on it.
     
  12. kevan hubbard

    kevan hubbard Well-Known Member

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    kevan hubbard, Jun 22, 2018
    #12
    Omegon seems to be based in Germany but I'm guessing that their stuff is outsourced to the PRC? Those wide field 2.1x42 binoculars look almost the same as the vixen product but there's a major price difference so I don't see how they can be.I'm guessing that the vixen ones are Japanese and the omegon ones Chinese and a copy of the vixen ones?
     
  13. Mak the Night

    Mak the Night Well-Known Member

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    Mak the Night, Jun 22, 2018
    #13
    Omegon is the house name of Astroshop.
     

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