ICEINSPACE
Most Read Articles
Moon Phase
CURRENT MOON Waning Crescent
2.5%
The Sun Now
Time Zones
Sydney*
1:50 am
Perth
10:50 pm
Auckland*
3:50 am
New York
9:50 am
Paris
3:50 pm
GMT
2:50 pm




Go Back   IceInSpace > Beginners Start Here > Beginners Talk

Reply
 
Thread Tools Rating: Thread Rating: 11 votes, 4.00 average.
  #61  
Old 27-02-2014, 10:45 AM
SkyWatch (Dean)
Registered User

SkyWatch is offline
 
Join Date: Jan 2013
Location: Adelaide
Posts: 313
Quote:
Originally Posted by Devilbabi View Post
Guys, I am a complete noob!
I have read it is best to grab a good pair of bino's before a telescope, I have no idea what any of the lingo I have just read means, can some one link me to a good starter page to read so I understand better what I should be looking for?
Links to good binos would be appreciated too!
Thanks, Amanda
Lots of guides out there. You could try: http://www.ozscopes.com.au/guides/binoculars-guide
- of course they link to binos they sell as "examples"- but they give you a fair bit of information too. They have a big variety of binos on their site, as do Procular: http://procular.com.au/

A good place to start is to look for "7x50" or "10x50" binos: ie 7 or 10 magnifications and the front lenses are 50mm in diameter. If your budget is limited, look for "porro prism" binos (these are the "normal" looking ones that you see everywhere). The other type, "roof prism" binos, require more manufacturing steps and are generally more expensive for comparable quality. This size is a good compromise in terms of power, weight and light-gathering ability, and are good for day-time or night-time use. It would be best to go to a specialty shop and check out what they offer so you find something that you can hold easily and feel comfortable with.

There are big mobs of brands out there too, but if you look around the $150-200 mark you should find something nice. Pentax PCF, Olympus DPS I, Nikon Aculon are all good starter binos that you can't really go wrong with. You can also go for good quality "generic" ones that are re-branded by lots of people, like the "HG" series that Andrews sell (see their site: http://www.andrewscom.com.au/site-section-11.htm )

Have fun!

- Dean
Reply With Quote
  #62  
Old 27-02-2014, 12:15 PM
ManUtdFans (Alan)
Registered User

ManUtdFans is offline
 
Join Date: Aug 2013
Location: Sydney
Posts: 89
I just got a 20x50 binocular, able to focus on each eye.
BUT the problem is I cannot get both eye piece overlap. No matter how I adjust the distance of both eye piece still no luck, is it because the distance between my pupils does not match the binocular?

And also it is very easy to get myself to look through the binocular by one eye only with a tiny move.
Reply With Quote
  #63  
Old 27-02-2014, 12:18 PM
Amaranthus's Avatar
Amaranthus (Barry)
Visual 1985 to AP 2014...

Amaranthus is offline
 
Join Date: Jan 2014
Location: Judbury, Tasmania
Posts: 1,166
The interpupillary distance should be adjustable for all eyes. Try getting it right during the daytime, on a distant object.

If you can't ever get a single image, then it suggests your binoculars are out of collimation (they may have been dropped/jarred). Most units can be recollimated, if you remove the cover and turn the collimation screws:
http://www.cloudynights.com/item.php?item_id=416
Reply With Quote
  #64  
Old 27-02-2014, 01:48 PM
ManUtdFans (Alan)
Registered User

ManUtdFans is offline
 
Join Date: Aug 2013
Location: Sydney
Posts: 89
Quote:
Originally Posted by Amaranthus View Post
The interpupillary distance should be adjustable for all eyes. Try getting it right during the daytime, on a distant object.

If you can't ever get a single image, then it suggests your binoculars are out of collimation (they may have been dropped/jarred). Most units can be recollimated, if you remove the cover and turn the collimation screws:
http://www.cloudynights.com/item.php?item_id=416
I can "see" both images are moving towards each other when I manipulate the individual ones (fold and unfold) but both images hard to merge.

So far I could only get one time to merge them successfully.
Reply With Quote
  #65  
Old 27-02-2014, 02:00 PM
Amaranthus's Avatar
Amaranthus (Barry)
Visual 1985 to AP 2014...

Amaranthus is offline
 
Join Date: Jan 2014
Location: Judbury, Tasmania
Posts: 1,166
Then I suspect the prisms are miscollimated.
Reply With Quote
  #66  
Old 27-02-2014, 02:01 PM
ManUtdFans (Alan)
Registered User

ManUtdFans is offline
 
Join Date: Aug 2013
Location: Sydney
Posts: 89
Quote:
Originally Posted by Amaranthus View Post
Then I suspect the prisms are miscollimated.
Oh...
I don't know how to do the collimation. How about I just use one eye?
Reply With Quote
  #67  
Old 27-02-2014, 02:06 PM
Amaranthus's Avatar
Amaranthus (Barry)
Visual 1985 to AP 2014...

Amaranthus is offline
 
Join Date: Jan 2014
Location: Judbury, Tasmania
Posts: 1,166
See the link I posted above for advice on how to collimate. It is not always possible, however. I had to 'retire' my trusty Jason Empire 7x50 pair after they got knocked out of collimation. Even manipulating the prism screws couldn't fix the issue.

So it will depend how badly yours are out. I tried using the one eye approach with my Jason pair for a while, but quickly got tired of it and bought a new pair, which I'm very happy with (but they really need to be tripod mounted).
Reply With Quote
  #68  
Old 26-01-2016, 09:04 AM
dredove's Avatar
dredove
Registered User

dredove is offline
 
Join Date: Jul 2015
Location: Melbourne
Posts: 3
Really nice job helped answer a lot of questions
Reply With Quote
  #69  
Old 16-09-2016, 04:10 PM
haroon132 (Haroon)
Registered User

haroon132 is offline
 
Join Date: Sep 2016
Location: Sydney
Posts: 16
Thanks for the great advice I will go binocular hunting on Sunday.
Reply With Quote
  #70  
Old 31-12-2016, 04:44 PM
JackieP (Jackie)
Registered User

JackieP is offline
 
Join Date: Dec 2016
Location: Coffs Harbour NSW
Posts: 2
Hi, I know this is an old conversation, but I have similar problem with binoculars. They are just fine during the day, looking at general scenery, which is crystal clear, and I think I have properly culminated them. But when looking at the heavens at night, I see 2 of each thing I look at! I don't know if maybe it is just my eyes/brain not processing those little pinpoints of light very well.
Reply With Quote
  #71  
Old 31-12-2016, 10:39 PM
Tinderboxsky's Avatar
Tinderboxsky (Steve)
I can see clearly now ...

Tinderboxsky is offline
 
Join Date: Feb 2012
Location: Tinderbox TAS
Posts: 431
Hi Jackie,
I have the same problem. Day time terrestrial viewing is fine but trying to view a point source of light, such as a star or planet, produces two images. The gap between the two bright objects is relatively small for me in low power binoculars and with a little concentration I can merge the two images. However, the gap is significant and a real problem using binoviewers on a telescope. No matter how hard I try I am unable to successfully merge the two images. At medium power, I have found that I can merge the two images of the moon but my eyes soon tire. If I then concentrate on an individual crater, the two images quickly diverge again.
I mentioned this to my optometrist. After a few measurements and tests, he confirmed that I have a slight muscular misalignment of my eyes which is sufficient to prevent my brain merging the two images. There is nothing that I can do about it.
So, I have reluctantly sold my binoviewer and matching eyepieces and have resigned myself to mono observing.

Cheers

Steve.

Quote:
Originally Posted by JackieP View Post
Hi, I know this is an old conversation, but I have similar problem with binoculars. They are just fine during the day, looking at general scenery, which is crystal clear, and I think I have properly culminated them. But when looking at the heavens at night, I see 2 of each thing I look at! I don't know if maybe it is just my eyes/brain not processing those little pinpoints of light very well.
Reply With Quote
  #72  
Old 01-01-2017, 02:01 PM
JackieP (Jackie)
Registered User

JackieP is offline
 
Join Date: Dec 2016
Location: Coffs Harbour NSW
Posts: 2
Hi Steve, yes that does sound like me - I can concentrate and merge them up, too. I wear contact lenses for short sightedness so that might also be a contributing factor. Like you I might be stuck with it . Or I might try with my glasses, rather than my contacts. I am using binoculars to get to know the night sky a bit in preparation for using a new telescope my husband bought me for Xmas, luckily it has only a single eyepiece.
Reply With Quote
  #73  
Old 07-10-2017, 10:32 PM
AEAJR (Ed)
Registered User

AEAJR is offline
 
Join Date: Mar 2016
Location: Long Island, New York, USA
Posts: 354
An excellent article on binoculars. I will add a link to this article when trying to help newbies interested in binoculars.
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 12:50 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Advertisement
SkyWatcher Star Discovery
Advertisement
FLI Cameras and Imaging Accessories
Advertisement
OzScopes Authorised Dealer
Advertisement
Tasco Australia
Advertisement
Lunatico Astronomical
Advertisement
Meade Instruments
Advertisement
NexDome Observatories
Advertisement
Atik 16200
Advertisement
Bintel
Advertisement
Astronomy and Electronics Centre
Advertisement