Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

Welcome to Stargazers Lounge

Register now to gain access to all of our features. Once registered and logged in, you will be able to contribute to this site by submitting your own content or replying to existing content. You'll be able to customise your profile, receive reputation points as a reward for submitting content, while also communicating with other members via your own private inbox, plus much more! This message will be removed once you have signed in.

  • Announcements

    sgl_imaging_challenge_banner_jupiter.jpg

     

Pingster

Big Binoculars IMAGE Quality 45deg better than 90deg?

18 posts in this topic

Hi,

I have a pair of 15x50mm binoculars mounted to a parallelogram and lay on a lounger. I love relaxing in the evenings with this setup. But i wanted more aperture....

So i purchased a Helios Quantum 7.4 with 45deg eyepieces. The image quality is very nice. Star colors much more vibrant. Stars at the edge smear a bit, but that does not bother me too much.

I live in the city and therefore targets at the zenith are most pleasing to view. Even with 45deg eyepieces i find the viewing above 60deg a pain in the neck. Maybe i have a weak neck... hahahaha :)

So im thinking of selling them and buying at Helios Quantum 6 with 90deg eyepieces.

By doing so would i be disappointed with the downgrade in image quality?

Or would a be better off buying a Helios Apollo 28x110 and using a parallelogram while lying on a lounger.

Does anyone have experience which has the best image quality & FOV sharpness? Quantum 7.4 or Helios Apollo 110mm?

Right now im working on a lounger with wheels and trying to attach the Q 7.4 to it. If it works out what wide field eyepieces would you recommend to upgrade to? I would like FOV of +68degs

Love to hear your comments.:hello2:

Share this post


Link to post
Share on other sites

Can't help on the bins but I do have this fantasy of making a Dobsonian chair. I'm serious. Why not? Chair and bins move together with you on board. You could even have GoTo, perhaps!

Olly

Edited by ollypenrice
1 person likes this

Share this post


Link to post
Share on other sites

Assuming similar optical quality there won't be much difference in the view between 45 or 90 angled eyepieces apart from reduced neck strain. I find it pointless to go above 68 degrees for eyepiece AFOV because you can't scroll round the field with your eyes using two eyepieces at a time.

Olly, there is a Australia sourced motorised chair that carries the observer and the binocular, the Skychair 2000. I fitted one of these with a Fujinon 150 some years ago, the experience was only exceeded by it's cost. :hello2:

1 person likes this

Share this post


Link to post
Share on other sites

There should be no difference between using 45 and 90 degree angled eyepieces other than reduced neck strain, assuming similar optical quality. I find that 68 degree AFOV is the widest for comfortable viewing as you can't scroll round anything much larger using two eyes at the same time.

Olly, there is a Australia sourced motorised chair that carries the observer and the binocular, the Starchair 2000. I fitted one with a Fujinon 150 some years ago, the experience was exceeded only by the cost. :hello2:

Share this post


Link to post
Share on other sites

EDIT. Thought I'd lost the first posting and retyped. :hello2:

Share this post


Link to post
Share on other sites

Sky at Night April 2012 #83. page 22

Picture of homemade bino GoTo chair by Norman Butler in USA looks great.

Davey-T

1 person likes this

Share this post


Link to post
Share on other sites

Can't help on the bins but I do have this fantasy of making a Dobsonian chair. I'm serious. Why not? Chair and bins move together with you on board. You could even have GoTo, perhaps!

Olly

Two Sir Isaacs side by side. Neat, I would like a ride. Of course, I would not want go-to options, but if you could add a really comfy seat (and drinks cabinet while we are at it :D ) that would be perfect. Just hope the sir Isaacs do not squabble (sir Isaac was a difficult person, it is said) ;)

1 person likes this

Share this post


Link to post
Share on other sites

This is what you need :D

It's been posted on here before but I thought it worth another look!

Stu

post-6762-133916670457_thumb.jpg

Edited by BigMakStutov
1 person likes this

Share this post


Link to post
Share on other sites

This is what you need :D

It's been posted on here before but I thought it worth another look!

Stu

Nice one. I will stick with my home-grown parallellogram mount, however

1 person likes this

Share this post


Link to post
Share on other sites

I built myself a paraellogram mount and it works great. Tho i considered it may have been almost the same price and saved myself time if i had just bought a UA Unimount.

The 45deg eyepieces work well under a lounger.

Only niggle is that the weight of the bins plus paraellogram plus counter weights is a lot of work to setup...... And a pain in the back......

1 person likes this

Share this post


Link to post
Share on other sites
On 6/8/2012 at 15:45, Stu said:

This is what you need :D

It's been posted on here before but I thought it worth another look!

Stu

post-6762-133916670457_thumb.jpg

That is observing nirvana.  Beer in hand, dark skies, would be heaven.  Not to mention the lack of back ache.

2 people like this

Share this post


Link to post
Share on other sites
On 08/06/2012 at 14:50, michael.h.f.wilkinson said:

I would not want go-to options, but if you could add a really comfy seat (and drinks cabinet while we are at it :D ) that would be perfect.

how about something like this, keeps both hands free for guiding:

1.0x0.jpg

:headbang:

2 people like this

Share this post


Link to post
Share on other sites
On 01/06/2012 at 11:12, ollypenrice said:

Can't help on the bins but I do have this fantasy of making a Dobsonian chair. I'm serious. Why not? Chair and bins move together with you on board. You could even have GoTo, perhaps!

What you need is a StarChair:

6-20.jpg.1dc38d11a79a8c889714992de343ac30.jpg

2 people like this

Share this post


Link to post
Share on other sites

Posted (edited)

3 hours ago, BinocularSky said:

What you need is a StarChair:

6-20.jpg.1dc38d11a79a8c889714992de343ac30.jpg

By Gad, I do believe you're right! Tell you what, you buy this lot and I'll buy the ice creams...

Olly

Edited by ollypenrice
4 people like this

Share this post


Link to post
Share on other sites

Sun lounger + 15x70 Helios Apollo = WINNER (Nice glass of Johnny Walker GOLD Label helps too.....)

1 person likes this

Share this post


Link to post
Share on other sites
2 hours ago, kirkster501 said:

Sun lounger + 15x70 Helios Apollo = WINNER (Nice glass of Johnny Walker GOLD Label helps too.....)

I second this combo, the best I've had in hindsight, but I really need to pull my finger out and build a P-mount...I've only been talking about it for about 4 years!

Good thread everyone by the way :) 

Share this post


Link to post
Share on other sites
2 hours ago, kirkster501 said:

Sun lounger + 15x70 Helios Apollo = WINNER (Nice glass of Johnny Walker GOLD Label helps too.....)

I'm seriously thinking of a sun lounger on an oversized Lazy Susan, though. Rather nice to be able to twirl around.

Olly

1 person likes this

Share this post


Link to post
Share on other sites

Olly,it would be a lot cheaper than the Fujinon`s +StarChair!!!!!!!!!!!

Regards

Mike

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.