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2020 Eyepieces Buyer's Guide

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63 replies to this topic

#1 Starman1

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Posted 31 March 2020 - 03:27 PM

Here is the 2020 version of the Eyepiece Buyer's Guide.

If you have any additions, just post here and I will post a corrected version later.

Enter your telescope's focal length and f/ratio in the upper left boxes, and the entire spreadsheet will yield data.

 

Attached Files


Edited by Starman1, 01 April 2020 - 09:53 AM.

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#2 MarkGregory

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Posted 31 March 2020 - 03:29 PM

This is such a great resource. However, for me it is also a bit overwhelming. So many choices.



#3 Bean614

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Posted 31 March 2020 - 04:07 PM

Thanks (Again!) Don!!!


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#4 eyeoftexas

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Posted 31 March 2020 - 04:10 PM

A special treat for these days of sheltering in place!  Thanks for all of your efforts, Don.  Your spreadsheet has been a major help to me.  Infinity Clear Skies to you.



#5 sunnyday

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Posted 31 March 2020 - 04:14 PM

thank you very much for taking the time to do this work for the members.
I know that I really appreciate it and I am sure that others think like me.
thanks again .



#6 TOMDEY

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Posted 31 March 2020 - 04:16 PM

Nice! This will save me the usual stack of 3x5 cards!    Tom


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#7 John Rogers

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Posted 31 March 2020 - 04:59 PM

Thank you Don.  I always look forward to your updated database.



#8 Diomedes

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Posted 31 March 2020 - 05:07 PM

Hey, would you mind if I write(code)  some UI around this data? Thanks for sharing. 

Here is the 2020 version of the Eyepiece Buyer's Guide.

If you have any additions, just post here and I will post a corrected version later.

Enter your telescope's focal length and f/ratio in the upper left boxes, and the entire spreadsheet will yield data.



#9 lookoutmtn17

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Posted 31 March 2020 - 09:48 PM

Thank you for taking the time to put all of this information together. Tim


Edited by lookoutmtn17, 31 March 2020 - 09:48 PM.

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#10 JeniSkunk

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Posted 01 April 2020 - 03:20 AM

Don, might I ask why the Saxon branded eyepieces have no entries in the list?

https://www.saxon.co.../eyepieces.html



#11 Starman1

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Posted 01 April 2020 - 09:16 AM

Overlooked.

 

I remember the brand from a couple years ago, but I dropped them out of the list for some reason.

I'll add them.

 

One funny thing: they say "edge-to-edge blackened optics" in their descriptions. LOL.

I certainly hope not.  They'd be hard to look through!

 

I also notice a few cheap eyepieces have no apparent fields quoted.  I won't include those in the list.


Edited by Starman1, 01 April 2020 - 09:36 AM.

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#12 Starman1

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Posted 01 April 2020 - 09:54 AM

Note to all: the posted spreadsheet in post #1 has changed.  Please download the revised version that is now posted there.

Don


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#13 BradFran

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Posted 01 April 2020 - 11:22 AM

Seeing the 2020 Eyepiece BG pop up made the intro to Beethoven's 5th pop into my head...



#14 JeniSkunk

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Posted 01 April 2020 - 08:04 PM

Thanks for adding the Saxon eyepieces to the list Don :)


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#15 BFaucett

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Posted 01 April 2020 - 08:39 PM

Don,

 

Why are the Row Heights so large? Or is it just me?

 

This is what I'm seeing in Excel 2016:

 

eps2020.jpg

 

Thanks, Bob F. smile.gif

 



#16 Starman1

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Posted 01 April 2020 - 09:35 PM

when you enter the focal length and f/ratio at top left, the screen collapses to normal line height.

#17 BFaucett

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Posted 01 April 2020 - 10:07 PM

when you enter the focal length and f/ratio at top left, the screen collapses to normal line height.

OK. I tried it and it didn't work.  scratchhead2.gif  What version of Excel are you using?

 

 

eps2020-2.jpg


Edited by BFaucett, 02 April 2020 - 12:26 AM.


#18 Starman1

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Posted 02 April 2020 - 12:39 AM

OK. I tried it and it didn't work. scratchhead2.gif What version of Excel are you using?


eps2020-2.jpg

You're not familiar with Excel. Sorry.
Place the cursor on any line in between the line numbers on the left side of the spreadsheet. If you see the cursor appear as a small line with arrows pointing both up and down, then you have the cursor placed correctly.
Double click and all the lines will collapse to no taller than the text.
I forgot I have my Excel set to do this automatically.
That should do it.

#19 BFaucett

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Posted 02 April 2020 - 03:20 AM

I'm fairly familiar with using Excel.

 

I changed the alignment formatting of the cells in (hidden) columns S and T to not wrap the initial text displayed in cells A2 and B2 and the row height display problem went away.

 

Bob F. smile.gif

 

 

eps2020-5.jpg

 


Edited by BFaucett, 02 April 2020 - 03:33 AM.


#20 Starman1

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Posted 02 April 2020 - 09:05 AM

Excel always gives you more than one way to accomplish the task.

Thanks for the suggestion, though.  It might eliminate issues with others less familiar.

Anyone else with a problem in that regard, I'll gladly email the spreadsheet.


Edited by Starman1, 02 April 2020 - 09:09 AM.

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#21 25585

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Posted 02 April 2020 - 09:30 AM

That ATC (Czech) 90mm Erfle is intriguing, as is the list of Harry Siebert eyepieces!



#22 BFaucett

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Posted 02 April 2020 - 12:53 PM

Excel always gives you more than one way to accomplish the task.

Thanks for the suggestion, though.  It might eliminate issues with others less familiar.

Anyone else with a problem in that regard, I'll gladly email the spreadsheet.

No worries. I was just trying to be helpful.

 

Thanks. Bob F. smile.gif



#23 James1996

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Posted 10 April 2020 - 05:45 AM

I'd love to use the spreed sheet but I don't got Excel. frown.gif


Edited by James1996, 10 April 2020 - 05:45 AM.


#24 BFaucett

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Posted 10 April 2020 - 06:05 AM

I'd love to use the spreed sheet but I don't got Excel. frown.gif

Try this:

 

"LibreOffice is a powerful and free office suite, a successor to OpenOffice(.org), used by millions of people around the world. Its clean interface and feature-rich tools help you unleash your creativity and enhance your productivity. LibreOffice includes several applications that make it the most versatile Free and Open Source office suite on the market: Writer (word processing), Calc (spreadsheets), Impress (presentations), Draw (vector graphics and flowcharts), Base (databases), and Math (formula editing)."

 

https://www.libreoffice.org/

 

Windows, macOS, Linux

 

Cheers! Bob F. smile.gif



#25 James1996

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Posted 10 April 2020 - 08:32 AM

Try this:

 

"LibreOffice is a powerful and free office suite, a successor to OpenOffice(.org), used by millions of people around the world. Its clean interface and feature-rich tools help you unleash your creativity and enhance your productivity. LibreOffice includes several applications that make it the most versatile Free and Open Source office suite on the market: Writer (word processing), Calc (spreadsheets), Impress (presentations), Draw (vector graphics and flowcharts), Base (databases), and Math (formula editing)."

 

https://www.libreoffice.org/

 

Windows, macOS, Linux

 

Cheers! Bob F. smile.gif

Thanks!


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