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Binoculars or a telescope?

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Binoculars or a telescope?

Postby BML on Sat Apr 02, 2011 4:32 pm

I am buying a flat that gives me a view over much of London and I know nothing about binoculars or telescopes and I would like to know whether it is better to spend what I have to spend on a telescope or a pair of binoculars and if so what type?
BML
 
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Re: Binoculars or a telescope?

Postby IvanCavallazzi on Sun Apr 03, 2011 6:49 am

BML wrote:I am buying a flat that gives me a view over much of London and I know nothing about binoculars or telescopes and I would like to know whether it is better to spend what I have to spend on a telescope or a pair of binoculars and if so what type?


Do you want it as a stationary object(tripod´d in your flat)[more powerful]... or something that you can easily move and use it hand-held[less powerful]?

What is more or less the price range you want to spend?


Your question was way too generic... it is hard to guess what you are looking for.


Let me speculate...
If you want a stationary powerful object... I would go with one of those tripod´d giant binoculars with interchangeable eyepiece(expensive)
If you want a hand-held object... I would go with a 10x50 binoculars(unless you pick the very top brands... you will find good ones very cheap)
If you want something hand-held to take along with you all times... I would go with a compact 10x25(also cheap)


You see, here in my home... I use compact-bino+scope+telescope. Most of the spotting scopes and telescopes already start at a magnification that is far beyond human eyes. So... what happens is that it makes no sense to start to look at things on one of those objects. The deal, that works for me, is to search with a compact bino... and when I spot something interesting I jump to the scope or telescope(more powerful magnification) for a closer look.
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Re: Binoculars or a telescope?

Postby BML on Sun Apr 03, 2011 8:56 am

At the moment I have an oldish pair of binoculars which I use on a tripods from what was the USSR marked, "20 X 60 62m / 1000m
I have no idea what those figurs mean and Im not impressed with the quality and my spending limit is open.
I just want to explore as far as I can see and if there is a building that is interesting zoom into it.
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Re: Binoculars or a telescope?

Postby IvanCavallazzi on Sun Apr 03, 2011 10:53 am

BML wrote:At the moment I have an oldish pair of binoculars which I use on a tripods from what was the USSR marked, "20 X 60 62m / 1000m
I have no idea what those figurs mean and Im not impressed with the quality and my spending limit is open.
I just want to explore as far as I can see and if there is a building that is interesting zoom into it.


20 is the magnification (technically every object you see through that bino is 20x bigger)
60 is the aperture ( the diameter of the lenses 60 mm... what is important for light gathering)
62m/1000m is the field of view at 1km ( imagine that you are looking an horizontal avenue, and you are 1 km away from it. You will be able to see only 62m of it in that bino angle of view)

So... since you seems to have no interest in use it for astronomy or digiscoping, my guess is this:

1) Either way, buy a compact bino for search... a 10x25 ( very cheap... and there are good ones for less than $100)
(It is far better than those finders that they attach to big scopes and telescopes... using the compact you don´t need to move the entire thing. You just look for things walking around, in your hand, full mobility)


1.1) Then, for increased magnification, if you want to spend a lot, buy a tripod´d astro bino with interchangeable eye-pieces, like these(stationary):

http://www.opticsplanet.com/vixen-bt80- ... ripod.html
http://www.opticsplanet.com/oberwerk-25-62x100.html
(Notice that buying more eye-pieces, it can give you any magnification you want)

1.2) Or, for the increased magnification, if you don´t want to spend that much go for a tripod´d cheap astro bino, like these(stationary):

http://www.opticsplanet.com/ci-skymaster-20x80-gb.html
http://www.opticsplanet.com/ci-skymaste ... 0-gab.html
http://www.opticsplanet.com/oberwerk-25 ... ulars.html
(But in this case you will also need to buy a tripod for them)

Notice that I am just posting binos because actually they are more comfortable to see than the scopes/telescopes... and since you don´t show interest in astronomy or digiscoping... binos are more comfortable. But if you have interest in digiscoping or astronomy... then forget everything I said, and for increased magnification go with a scope/telescope.

(Also, notice that I am not a specialist at all... before you do anything, I recommend you wait till tomorrow, when the mod "Jne_K" will probably give you better insights)
IvanCavallazzi
 
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Re: Binoculars or a telescope?

Postby Jne_K on Mon Apr 04, 2011 9:52 am

Good points, Ivan. Thank-you.

Just remember that you will need a tripod for anything much over 10x, regardless of whether you want to go binoculars or spotting scope.

Yes, I would definitely get a conventional binocular, say an 8x42, as a first instrument. A standard binocular should always be a first instruemnt. Add a high power bino or a spotting scope as a second instrument.
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Re: Binoculars or a telescope?

Postby IvanCavallazzi on Tue Apr 05, 2011 1:12 am

Something I would like to add...

Let´s follow "Jne_K" advice here...
And instead of my 10X25 compact, you go with hers 8x42.. for search.
http://www.opticsplanet.com/nikon-42mm- ... -7296.html
http://www.opticsplanet.com/nikon-12x42 ... ulars.html
(these are great)

Also you buy these, for closer observation:
http://www.opticsplanet.com/oberwerk-25-62x100.html

Fine. You have the perfect optics on your side. But there is a limiting factor...
...It is the atmosphere.
You mentioned London. The classical... famous... mentioned... London fog. It is not known as the the world´s Capitol of the Industrial Revolution without a reason.

There is no magic. The air will always be your limit.

For example. I am looking at Saturn... often. Here in my home I can barely see the rings...
...but with the same telescope, when I go to Açores(2 hours by car... no pollution.. air clean) I can spot Titan(moon) and the rings and everything.

So, if you get a 8X42 and a giant binocular... you will have the perfect optics. Still, you won´t be able to see sharp images, because of the air.
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