Optical eyepieces for star observations

  • Context: High School 
  • Thread starter Thread starter bruha
  • Start date Start date
  • Tags Tags
    Optical Star
Click For Summary

Discussion Overview

The discussion revolves around the Hyperion modular eyepiece adapter and its advantages compared to standard eyepieces, particularly in the context of star observations. Participants explore the differences in optical quality, field of view, and potential improvements in image quality when using the Hyperion eyepiece system versus more basic eyepiece types like Plössl.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants inquire about the specific advantages of the Hyperion modular eyepiece adapter compared to standard eyepieces, particularly regarding image quality and price.
  • There is a discussion about the differences in apparent field of view between Hyperion eyepieces (68°) and Plössl eyepieces (around 50°), with some participants noting that more expensive eyepieces may reduce optical aberrations.
  • One participant mentions their experience with the Hyperion Zoom Mark IV and expresses satisfaction with its performance.
  • Concerns are raised about the quality of cheaper eyepieces, with references to issues like chromatic aberration and distortion, especially when observing bright objects.
  • Participants share links to reviews and additional resources regarding Hyperion eyepieces.
  • There is a mention of a participant's observations of Betelgeuse and the perceived color rendering issues when using a webcam for astrophotography.

Areas of Agreement / Disagreement

Participants express varying levels of familiarity and experience with the Hyperion eyepiece system, but there is no consensus on the extent of its advantages over standard eyepieces. The discussion includes multiple viewpoints on the quality and performance of different eyepiece types, indicating that disagreements and uncertainties remain.

Contextual Notes

Participants reference specific eyepiece types and brands, but there is a lack of detailed comparisons or quantitative measures of improvement in image quality. Some assumptions about optical performance and user experiences are not fully substantiated.

bruha
Messages
394
Reaction score
525
Hello, can I ask you if you have some experience with hyperion modular eyepiece adapter? I would like to know what is its main advantages compare to standard eyepiece ( as it is about ten times more expensive..)

thank ou...
 
Astronomy news on Phys.org
Hi Tomas,

bruha said:
hyperion modular eyepiece adapter

is this what you are talking about ? ...

baader_hyperion-aspheric_eyepiece_-_31mm_hyp-31_2454631.jpg
the left part is a Hyperion Eyepiece with a 2" barrel
the right part is an adaptor that screws into the end of the eyepiece to reduce the 2" barrel down to a 1.25" barrel
this is for telescopes that don't have a 2" eyepiece holder

Is that what you wanted to know ?

Dave
 

Attachments

  • baader_hyperion-aspheric_eyepiece_-_31mm_hyp-31_2454631.jpg
    baader_hyperion-aspheric_eyepiece_-_31mm_hyp-31_2454631.jpg
    18.2 KB · Views: 755
Hi , yes it is exactly what I am talking about... I have just 1,25" eyep. holder. Do you have some experience with this one,...?

thank you
 
Hi bruha. Can you elaborate on what you're asking? Do you currently have an eyepiece that you want to use with an adapter, are you wanting to buy an eyepiece with adapter to use in your 1.25" focuser, or something else?
 
bruha said:
Hello, can I ask you if you have some experience with hyperion modular eyepiece adapter?
Yes, I have a few of these.
bruha said:
I would like to know what is its main advantages compare to standard eyepiece ( as it is about ten times more expensive..)
What do you consider to be a "standard eyepiece"? Are you referring to a cheap Plössl here?
 
Hi ,
yes I plan to buy these eyepiece with adapter as I have just 1,25" telescope (or thinkink about it) but concerning high price I would like to know if it is really importantly advantageous compared standard eyepiece ?...

Thank you,...
 
I cannot say anything about the Hyperion Aspheric eyepiece, but I do have Hyperion Zoom Mark IV, and I like it a lot..

There are also 68° modular eyepieces in Baader hyperion series. And as far as I know, all of them (except 24mm) can be adapted to 2" or 1.25" focuser. The focal length should be variable by removing first group of lens or by adding the extensions - that's why it is called modular. Maybe you want to check more about them at this link...

By standard eyepiece, you mean that it is not modular?
 
Thank you, for answer and link... Yes I have just not modular simple eyepiece 20,12, 6, 2,5 mm (telescope 130 *600 mm) . I will check it...
 
  • #10
ANd yes I mean for example Plössl ones -my question in fact was how much and by which way I improve quality of image (what I can see) by using Hyperion compare these standard cheap ones
 
  • #11
bruha said:
Hyperion compare these standard cheap ones

which standard cheap ones ?
you haven't given any specific brand name examples

Plossl is a type of eyepiece, not a brand, many companies make plossl's along with other types
 
  • #12
bruha said:
I mean for example Plössl ones -my question in fact was how much and by which way I improve quality of image (what I can see) by using Hyperion compare these standard cheap ones
The two major differences will be the apparent field of view and optical aberrations.

More expensive eyepieces, like the Hyperions, are designed using multiple lens groups to give a much wider field of view. The Hyperions have a field of view of ##{68}^{\circ}## while a Plössl is around ##{50}^{\circ}##.

Cheaper eyepieces often have inferior optics which cause issues like chromatic aberration, ghost images, and even distortion of the image.

The optical issues are often most noticeable when observing bright objects like the moon, planets, or stars.
 
  • Like
Likes   Reactions: lomidrevo
  • #14
Hi I made some shots by webcamera eyepiece adapter of belelgeuse (right) and other star (left) -I am not sure which one probably from Gemini constellation.It seems me little strange that betelgeuse looks "cooler-etc high temperature" although it is red giant with low temperature...
betelgeuse.png
 

Attachments

  • betelgeuse.png
    betelgeuse.png
    3.4 KB · Views: 581
  • betelgeuse.png
    betelgeuse.png
    3.4 KB · Views: 658
  • #15
bruha said:
It seems me little strange that betelgeuse looks "cooler-etc high temperature" although it is red giant with low temperature...

probably just a result of poor colour rendering by the webcam
 
  • #16
I i see, thanks, I will look on it..
 
  • Like
Likes   Reactions: davenn
  • #17
HI and here is some moon 1) i think up is m. serenatis and posidenius cr.) 2) I am not sure:wink:
 

Attachments

  • moon1..jpg
    moon1..jpg
    18.1 KB · Views: 617
  • moon3..jpg
    moon3..jpg
    17.6 KB · Views: 631
  • #18
bruha said:
HI and here is some moon 1) i think up is m. serenatis and posidenius cr.) 2) I am not sure:wink:
awesome effort
Was that with the web cam ?
 

Similar threads

  • · Replies 226 ·
8
Replies
226
Views
17K
  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 27 ·
Replies
27
Views
6K
  • · Replies 5 ·
Replies
5
Views
1K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 0 ·
Replies
0
Views
896
  • · Replies 13 ·
Replies
13
Views
4K
  • · Replies 15 ·
Replies
15
Views
2K
  • · Replies 49 ·
2
Replies
49
Views
12K
  • · Replies 5 ·
Replies
5
Views
3K