Anonymous
Unregistered
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Hi,
This may sound very silly but can somebody teach me how to see thru the binoculars? I have problem seeing a single merged image. It's either 2 images or I have to close one eye, which totally defeats the purpose or advantage of using binos. I have tried to adjust the distance between the two tubes but eventually a single image appear when one of them blocks my left eye!!
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jmoore
Carpal Tunnel
Reged: 10/01/03
Posts: 1959
Loc: Beaufort, NC
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what kind of binoculars are you using? if you're seeing double, you may have a collimation problem. have you considered servicing your binos?
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Hardin 12"
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Anonymous
Unregistered
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Great question, jmoore? I never thought about that. It's a pair of 10x50 from Simon(?) I believe. Nothing fancing at all. I thought I would use it and learn what I can see.
How do you collimate binos? Not sure if mine would allow me to collimate at all. You message seems to imply this is only done via the makers.
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jmoore
Carpal Tunnel
Reged: 10/01/03
Posts: 1959
Loc: Beaufort, NC
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you can consult some previous threads about collimating your binos. EdZ is an expert. I think it can be tricky, though...i've never done it myself, and it's not something i'd feel comfortable with yet. I know you HAVE to take in some binos for collimation (e.g., my 10x42s don't have accessible collimation screws, so I couldn't do it myself if I wanted to). I think you're best bet is to take them somewhere, but wait to get some additional feedback here first.
jeff
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Hardin 12"
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KennyJ
Reged: 04/27/03
Posts: 10081
Loc: Lancashire UK
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With due respect and a little presumption , I doubt whether anyone who is having to ask how to view through binos is very likely to find themselves successfully collimating them within hours of asking such a question.
Two images doesn't sound very promising to me.
Perhaps a little "further reading" would be beneficial.
Do keep in touch 5402.
Regards , Kenny.
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Two eyes and a preference to use both
Zeiss 7 x 42 BGAT
Captain's Helmsman 7 x 50
Nikon 10 x 42 Superior E
Swift Audubon Kestrel 10 x 50
Helios 15 x 70 Observation
Strathspey 20 x 90
Televue 76 APO
Zeiss 85 Diascope
Helios 102 f5 refractor
Various eyepieces barlows tripods mounts etc.
Panasonic Lumix DMC - TZ5 digital camera
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Anonymous
Unregistered
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It might be in your mind 5402. That may sound a little odd, but I have experienced times when it was not "automatic" for a merged image to form in my head. This sensation does not occur very often, but when it does I see double vision and then the images come together nicely. So it may not necessarily be a collimation problem. But then again it might.
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edcannon
professor emeritus
Reged: 11/19/03
Posts: 675
Loc: Austin, Texas
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This is not a silly question. A couple of years ago I was at a park looking at a comet -- Ikeya-Zhang I think. Some people were there, and I looked through their binoculars, and it was awful -- two widely separated images -- and they didn't even know it. I wish I had known what to say to them. More recently a binocular carried by a frequent fellow observer appears to have gone out of collimation. The image is very double, and what you're supposed to see is one circle. (What is portrayed on TV and in the movies is wrong.) If you hadn't yet learned what to expect to see through your binoculars, then this is just a good learning opportunity.
Anyway, I would suggest trying to get some person in your area, an amateur astronomer or birdwatcher or even someone at a camera shop whom you might feel is reliable and knowledgeable, to look through your binoculars. Also, take the opportunity to look though other ones, say owned by an astronomer or birder, or at a camera shop or optical shop, which will be optically in good shape. (Caveat: In a store I've seen a couple of them not in good collimation.)
If they're out of collimation and are adjustable, you might be able to do it, but as others have said you would need to do some reading so as not to damage them.
Ed Cannon - Austin, Texas, USA
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Anonymous
Unregistered
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That's a good story Ed. If you have never looked through binoculars before, you would naturally not know what to expect. 5402, I would take Ed advice. Surely there is someone in Lebanon or Claremont that can help.
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Tom L
Reged: 01/07/04
Posts: 29811
Loc: Sunny Oregon
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Actually, ARE you supposed to see a perfect circle? I always thought what you should see is the 2 circles that are very, very close...kind of one slightly elongated circle (not an oval). since there is the slightest shift when viewing from one eye to the next. Please correct me if I'm wrong, but I seem to get my best view when I do this. If this isn't the case, then I'm in trouble!
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Tom 
Tele Vue 102mm f/8.6 on an EzTouch
Vixen 80mm f/5 A80SSWT on a grab-n-go mount
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Anonymous
Unregistered
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That's kind of what I see Tom. My field of view is not quite one circle, but two circles nearly superimposed.
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werewolf6977
Lord High Smasher
Reged: 12/15/03
Posts: 7407
Loc: Hanover, Ohio
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Tom, Night Watch: that's what I get too. Pete
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Pete
6" Apogee/LXD55 - "The Beast"
Starhopper 6" Dob - "Shiva"
Spaceprobe 130 EQ - "Spacey"
Bushnell Fatboy
The Abomination
Sun Pak Pro 7500 Platinum Edition
10X25 Bushnell Camo Roofies
7X35 Tasco Classic Plastic (good views though)
7X42 Tasco Rare Bird
10X50 Nikon Actions (Type 7)
15X70 Skymasters - "DroolMeisters"
One ratty old IBM 600E LapTop
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edcannon
professor emeritus
Reged: 11/19/03
Posts: 675
Loc: Austin, Texas
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I may be wrong. I'm not an expert. I never noticed anything but a circle with my 10x50, but when trying close focus with my newer Orion Ultraview 8x42, I do see two separate side-by-side (mostly overlapping) circles. However when I look at the stars, there is little or none of that effect.
Ed Cannon - Austin, Texas, USA
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Anonymous
Unregistered
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I ONLY notice the overlapping circles when viewing in the day. At night, not noticable at all...which is expected because it is black on a nearly black sky background.
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Tom L
Reged: 01/07/04
Posts: 29811
Loc: Sunny Oregon
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I agree with that also. Thanks guys.
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Tom
Tele Vue 102mm f/8.6 on an EzTouch
Vixen 80mm f/5 A80SSWT on a grab-n-go mount
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