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Main
Date: 08 May 2007 01:32:42
From: nguyenducix
Subject: Buying first astro binocular
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Hello group,
I am planning to buy my first binocular for astro. I am currently
reside in South Korea and here are the list of my options after I did
some researches :
1) Nikula 10x42 Binocular (quite unfamiliar brand from Japan). This
one has bak4 roof prism, full multicoated and water-proof. The price
is about 79 USD -
http://www.gmarket.co.kr/challenge/neo_goods/goods.asp?goodscode=105728170&pos_shop_cd=GE&pos_class_cd=300010838&pos_class_kind=S
(in Korean)
2) Meade Astro 9x63, Bak4 roof prism. Price ranges from 88 USD to 150
USD -
http://www.gmarket.co.kr/challenge/neo_goods/goods.asp?goodscode=114570102&pos_shop_cd=SH&pos_class_cd=111111111&pos_class_kind=T&search_keyword=meade
( in Korean)
3) Nashica Comet Hunter Binocular (from Japan). This one features 7x50
porro bak4 prism. Price is about 97 USD -
http://www.gmarket.co.kr/challenge/neo_goods/goods.asp?goodscode=112743659&pos_shop_cd=GE&pos_class_cd=300010838&pos_class_kind=S
(in Korean)
4) Helios Fieldmaster 7x50, bak4 porro prism ~ 115 USD -
http://www.binoculars.co.kr/item.php?it_id=89 (in Korean)
5) Bosma 15x70, bak7 porro prism ~ 120 USD - http://www.binoculars.co.kr/item.php?it_id=4
(in Korean)
6) Swift Cougar 10x50, bak4 porro prism and fully magenta coated
(??). Price is about 150 USD - http://www.binoculars.co.kr/item.php?it_id=7
(in Korean)
7) Maxvision Voyager 7x50, bak4 porro prism, multi coated. Price ~
120 USD - http://www.binoculars.co.kr/item.php?it_id=144 (in Korean)
I would like to receive comments and recommendations from group
members about the above list. This is my very first try so I am quite
anxious. Unfortunately, I could not find famous brands like Orion,
Nikon or Celestron in Korea that fall under my budget (~ 150 USD).
Please help me.
Thank you all very much.
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Date: 08 May 2007 07:11:10
From: Dennis Woos
Subject: Re: Buying first astro binocular
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I would look at either a pair of 10x50, or the 15x70. The 10x50 will give a
lower power, wider field while the 15x70 will allow you to see a bit fainter
but with a narrower field. Of course, the 10x50 is easier to hand hold, but
I recommend that you buy or build a simple bino mount regardless of which
bino you buy. Burgess Optical sells a good one as either a kit or
assembled: http://www.burgessoptical.com/Mounts/TinyTitanII.html You can
also download assembly instructions from the website, which would assist you
in building your own version from scratch. I think that mounting any bino,
even small and light ones, greatly improves their utility. Be prepared to
return the bino if defective, which quite a few are. If you cannot get
stars to merge into a single image then they are out of collimation, and
should be returned.
Dennis
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Date: 08 May 2007 03:41:06
From: Ben
Subject: Re: Buying first astro binocular
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On May 8, 3:32 am, nguyenducix <nguyendu...@gmail.com > wrote:
> Hello group,
>
> I am planning to buy my first binocular for astro. I am currently
> reside in South Korea and here are the list of my options after I did
> some researches :
You would do best to obtain a bino with a porro prism
configuration. Roof prisms are prone to internal reflections
and loss of contrast. I would suggest either the 10x50
of 15x70 for astronomical purposes although I use my
8x40's quite a bit.
Ben
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