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Rick
Carpal Tunnel
Reged: 04/12/05
Posts: 2564
Loc: Tokyo, Japan
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Quote:
I would consider the Miyauchi 71mm or 77mm models because they offer interchangable eps in a range of magnifications.
Dude, I think you need to slow down, take some deep breaths, and gather your thoughts because you seem to be all over the place. Eyepieces for the Miyauchi's are proprietary and expensive. Eye relief deteriorates rapidly as mag increases. Don't you think if I thought the Miyauchi's were really "all that" that I would buy them given my access and their lower prices here?
Frankly, the more you post about what you want in a binocular upgrade, the more I think you should get a 8-10" F6-ish Dob, especially given your budgetary constraints.
cheers,
Rick
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www.japanastro.com
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Glassthrower
Vendor - Galactic Stone & Ironworks
Reged: 04/07/05
Posts: 14601
Loc: Hurricane Alley
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Quote:
Dude, I think you need to slow down, take some deep breaths, and gather your thoughts because you seem to be all over the place.
I'm here, there, and everywhere of late. It's the chronic binocular obsession I have. Eye relief is something I had not considered with the Miyauchi. I bet ER is tiny at 115x and exit pupil must be tiny as well. Probably a big dim image?
Well, as soon as Zach or Kevin decide to humor me and offer a 22x85IF "Series 8" binocular then debate will be over and my credit card statement shall suffer accordingly.
Quote:
Don't you think if I thought the Miyauchi's were really "all that" that I would buy them given my access and their lower prices here?
True. So, why don't you own a pair? Are they overrated for the price? Is it some performance shortcoming or do you prefer a bino that will take standard 1.25" eps if you are going to have interchangeable eps? Honestly, all of this speculation is fun and informative (for me), but in the end I will likely end up with something less than a Tak, Fuji, or Miyauchi.
Clear dark skies...
MikeG
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Michael Gilmer - Member of the Meteoritical Society & Collector of Falling Stars.
Galactic Stone & Ironworks - Buy/Sell/Trade Meteorites, Moon Rocks, Mars Rocks, & 35 different falls and types!
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kray
super member
Reged: 01/25/05
Posts: 134
Loc: NC, USA
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Mike,
I do understand your unbridled enthusiasm when you think about the possibility of having a new bino(or two). I , like you, want to start to upgrade to a higher quality glass and have a couple of directions I want to go. It seems that I'll have to get a minimum of two additional units to satisfy my wants. A unit like the Taks for observing planets and a wider field high power unit for DSOs. I hate monovision, although I know a good high quality refractor would be good for planets. If I went that way, I'd have to binoview. I'm not sure that would work for a small 60-90 mm scope. Then there's the two EP to buy.
Quite a quandary.
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Ken
Celestron Regal LX 8 x 42 roof
Orion Expanse 7 x 32 (14 degree)
Nikon 10 x 35 E2
Nikon 10 x 50 Action V ( Made in Japan)
Oberwerk 15 x 70
GO 25 x 100 IF Bogen 501/3046
Celestron 102 F/5 Wide View Refractor
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Rick
Carpal Tunnel
Reged: 04/12/05
Posts: 2564
Loc: Tokyo, Japan
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Quote:
So, why don't you own a pair? Are they overrated for the price? Is it some performance shortcoming or do you prefer a bino that will take standard 1.25" eps if you are going to have interchangeable eps?
Mike, my observing locations put some serious portability constraints on me. I've just come to conclusion that if I have to use binoc's mounted for serious observation, I might as well put up the 4" Borg ED (or the 8" Vixen VMC) as it is just as portable, is more comfortable to use because of the diagonal, and I can get the same FOV as >20x giant binoc PLUS I can control mag and exit pupil to match my targets too. Now I'm setting it up for binoviewing so my planetary views will be even better.
For casual observation the 15x50IS is the ideal binoc for me in most cases, but I also have the 10x42SE when I need the wider FOV. However, I found even at 10x it/me requires some kind of support to steady the view. But if I had a nice dark site and parallelogram, I think the Fuji 16x70 would be awesome. Hopefully, I'll get to at least try them out under really dark skies at least once before the urge to sell overpowers me!
-Rick
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www.japanastro.com
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Glassthrower
Vendor - Galactic Stone & Ironworks
Reged: 04/07/05
Posts: 14601
Loc: Hurricane Alley
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Quote:
although I know a good high quality refractor would be good for planets. If I went that way, I'd have to binoview. I'm not sure that would work for a small 60-90 mm scope. Then there's the two EP to buy.
Ken, I feel the same way. To me, buying a scope is an open-ended purchase that leads to an endless succession of upgrades and accessories. I am an obsessive individual to start with (obviously) and my mind literally SPINS with all the possibilities of fielding a quality scope. Buying a big, premium binocular has a finality to it - to me. Once the mount and tripod are taken care of, as mine, then it's time to stop obsessing and start observing. The qualities that some would call limitations (i.e. fixed magnification) are positive points to me. Thankfully I do not live in a heavily-urbanized mega-metropolis like Rick - where he correctly states that big binocular and p-mount setup are not to his advantage due to portability issues and the local light pollution. The choice of binocular, binoscope, or bino-viewed telescope is impacted by such issues.
For me, something in a 18-22x binocular with a ~2.5° - 3° FOV, and 70-100mm of aperture will be ideal. The higher quality optics, the better.
Rick -
If Yamaguchi Prefecture is sparsely-populated, would it be safe the assume that the light pollution problem is not terrible there? At least he might have some dark skies to look at.
Clear dark skies...
MikeG
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Michael Gilmer - Member of the Meteoritical Society & Collector of Falling Stars.
Galactic Stone & Ironworks - Buy/Sell/Trade Meteorites, Moon Rocks, Mars Rocks, & 35 different falls and types!
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btschumy
Think Astronomy
Reged: 04/13/04
Posts: 1107
Loc: Austin, TX, USA
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I'm here, there, and everywhere of late. It's the chronic binocular obsession I have. Eye relief is something I had not considered with the Miyauchi. I bet ER is tiny at 115x and exit pupil must be tiny as well. Probably a big dim image?
If you wear glasses then the Miyauchi probably won't work for you. The eyecups are very stiff on the low power eyepiece and are almost impossible to fold without damaging them. With them extended you won't see the whole field of view. With the medium and high power eyepieces there is a short wall for an eyecup that really is impossible to fold. You'd have to slice it off to get anything like the full field with glasses. IMO, Miyauchi just doesn't cater to eyeglass wearers. I've given up on them fro that reason.
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Bill Tschumy
Where is M13? Freeware -- Add a new dimension to your observing.
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Rick
Carpal Tunnel
Reged: 04/12/05
Posts: 2564
Loc: Tokyo, Japan
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Quote:
If Yamaguchi Prefecture is sparsely-populated, would it be safe the assume that the light pollution problem is not terrible there? At least he might have some dark skies to look at.
Well, I think you be wrong. "Sparsely populated" is relative, my friend. Population of 1.5 million and about the size of a Louisiana parish. Stuck in corridor between Hiroshima and Fukuoka, two of Japan's Top 10 cities. Bordered on the sea by 3 sides, averages about 25" rain a month, and near several active volcanoes. Also home to the Iwakuni US naval air station.
http://www.pref.yamaguchi.jp/gyosei/kenjoho/english.htm
-Rick
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www.japanastro.com
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MIKADO
member
Reged: 03/21/06
Posts: 52
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Like all materials TAKAHASHI, the binoculars 22x60 are not rare, but they do not result from an industrial production to Chinese which controls the quantity better that quality. In addition the manufacture of the TAK 22x60 is stopped, then if you in still found on sale profit in the bus these binoculars are really fantastic for astronomy.
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Joe Ogiba
Post Laureate
Reged: 02/14/02
Posts: 3340
Loc: NJ USA
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If TeleVue could have their Nagler eyepieces produced in Taiwan (Republic of China) then there is no reason why their operation could move to mainland China and not build the same quality optics.
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Pentax PF-80ED
Meade 102ED APO
Orion EON 72
120ST
Apex 127
C6 XLT
CR150
C9.25
XT10
Zeiss 7x42 FL
Canon 10x42L IS WP
15x50 IS
12x36 IS II
Garrett Optical 28x110 HD-WP Signature Series
Oberwerk BT-80 45
Apogee RA-88-SA
Denk II Power x Switch binoviewer w/13mm Ethos, 20mm Pentax XW's, 20mm Widescan III's.
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MIKADO
member
Reged: 03/21/06
Posts: 52
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I speak especially about binoculars coming from popular China and not of Taiwan, where we know all, astronomers amateurs the quality of the instruments of a manufacturer like William Optic. Now, popular China is indeed able to produce of good, to see very good products like SKYWATCHER of the group SYNTA which repurchased CELESTRON besides. But for the binoculars I find the Chinese production for the moment still unequal and not answering always our quality standards. You can make all the possible equations, according to the quality which you want, higher is quality more that pays itself.
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