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What other eyepiece to buy?

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16 replies to this topic

#1 drabina

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Posted 23 September 2019 - 10:32 AM

I have the AT72ED scope (430mm f/6) with 2x barlow lens and two plossl eyepieces (25mm and 10mm). I would like to buy one more eyepiece (lower than 10mm) to get more magnification but I am not sure what would be the best one to get. I am assuming that around 140x is the maximum I can get thru the scope so I am considering 8mm, 7mm and 6mm eyepieces. Each will give me over 100x magnification with the 6mm reaching 143x.

 

Any recommendations?



#2 Taosmath

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Posted 23 September 2019 - 10:45 AM

Depends on your budget.

 

I have a Nagler 3-6mm zoom I like with my refractors, but that costs $300 used. ( I prefer the convenience of a zoom to switching out Ep's & Barlows, but that's just my preference).



#3 rowdy388

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Posted 23 September 2019 - 10:49 AM

You haven't given us a budget but you have a very fine little scope. I think a Morpheus 9 or 6.5 would

work great. The 9 is my favorite eyepiece in my AT80EDT. I rarely put another eyepiece in it anymore.

An 8mm AT Paradigm would be a very good choice on a restricted budget.


Edited by rowdy388, 23 September 2019 - 10:51 AM.

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#4 drabina

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Posted 23 September 2019 - 10:52 AM

Forgot to mention budget. Actually, I am not sure what the prices are so lets forget any exotic or top shelf eyepieces. How about $60? May stretch to $100 if I can see the difference between $60 and $100 eyepiece.



#5 cst4

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Posted 23 September 2019 - 10:55 AM

How are you enjoying your new scope?  I have Astro Tech Paradigms in 5mm and 8mm and think both are great for their low cost, especially used like I found them.  For 6mm and 7mm you might want to try the TMB Planetary eyepieces.  You can get them new off eBay for very cheap and they blow plossls away in my opinion in the lower focal lengths.  I also have a Meade HD-60 6.5mm eyepiece and it is great.  It's quite a bit bigger than your plossls though so might be a bit bulky in your EP lineup.  



#6 SeattleScott

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Posted 23 September 2019 - 11:47 AM

For $60 you can get a Paradigm/Starguider/Dual ED. These are all the same. Good eye relief if you don’t wear glasses, a bit wider FOV than your plossls. I think I heard they are really 57 degrees not 60 but still better than 50 degrees.

For $65-75 you can get Celestron Xcel LX, or the Meade HD-60’s which are on closeout sale for $70-75. Same eyepieces but fewer QC complaints about the Meade for whatever reason. Maybe the QC was better on Meade since they were $80-90 eyepieces. These have a bit more eye relief so they can accommodate glasses pretty well, and I think they really are 60 degrees instead of 57 advertised as 60. In general they are basically higher quality than the $60 ones, a bit better corrected, etc. I am sure it isn’t a big difference but people say the HD-60/LX are a little better. Enough better to justify spending $15 more? Idk.

Scott

Edited by SeattleScott, 23 September 2019 - 11:48 AM.


#7 vtornado

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Posted 23 September 2019 - 01:23 PM

I have TMB clones, and they work well except I have had problems with the 4mm size two were dogs.  The TMBs come in 6,7,8 sizes. My 7 has a rattley lens, but is nice and sharp.  Do to the low cost, I think there is a large amount of variance between samples.

 

The paradigm dual ed starguiders I have are consistently good quality.  Unfortunately no 6 or 7 size.


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#8 havasman

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Posted 23 September 2019 - 01:40 PM

+1 for the Astro-Tech Paradigm Dual ED's. GREAT value, high consistency, right in your price range

Yep, that's what I'd do. I've had the TMB Planetary II (bought new from Astronomics years ago), also good but only available used and also subject to lens rattling (mine did) and internal reflections. Mine's now on permanent loan to a 6 year-old but she prefers the ES68 24.


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#9 drabina

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Posted 23 September 2019 - 01:48 PM

Thanks.

 

I see that the AT Paradigm Dual ED eyepieces are either 5mm or 8mm. Which one would be better for my scope? Even though I said that I am considering something in the 6-8mm range, I am worrying that the 8mm wouldn't be much change from the 10mm I have and 5mm may push the scope to its limits. Unless I sell the 10mm and go for 8mm eyepiece.



#10 cst4

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Posted 23 September 2019 - 02:08 PM

They are both good EP's and I think you would really like either one of them.  I agree though that the 8mm is probably too close to your 10mm and the 5mm would be the same as your 10mm barlowed.   Plus the 5mm might be too much mag with a 2x barlow.  So unless you do plan to sell the 10mm then you may want something else.  I would suggest 6mm to 7mm as being ideal if you really want to keep it to just one eyepiece purchase.  That spacing would be better and when barlowed would provide a nice max magnification.  In that case TMB Planetaries, Meade HD-60 6.5mm, or Celestron X-cel 7mm all fit the bill.  The ES or Meade 6.7mm 82o EP's would be another option... closer to $100 used but wider field of view.



#11 vtornado

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Posted 23 September 2019 - 02:10 PM

When I said my TMB clone 4mm were dogs, I made that assessment vs barlowing the dual ED eight.

So they do barlow well.  You could barlow the 12 ED.  Some people don't like barlows.  They add

height, and weight, and add more glass to the optical chain,  a little more difficult to fiddle with than

a single eyepiece.

 

Although by not barlowing the 12 you get an eyepiece very close to your 10.


Edited by vtornado, 23 September 2019 - 02:12 PM.


#12 SeattleScott

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Posted 23 September 2019 - 02:50 PM

The Meade HD-60 6.5mm is $72-75. Better than Paradigm, better fitting focal length, and not significantly more money. The Xcel-LX 7mm would be an option too. Might be slightly cheaper but more QA concerns if you check out reviews on CN. The ES 6.7mm 82 would go considerably wider but I see pricing between $130-190, which is more than your indicated budget. Nice eyepiece though.

Scott

#13 drabina

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Posted 23 September 2019 - 08:08 PM

Based on your recommendations, I just purchased the Celestron Xcel LX 7mm here on the classifieds section. Thanks guys!


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#14 cst4

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Posted 24 September 2019 - 06:45 AM

Good choice. I’ve read the Celestron Xcel LX EPs and Meade HD-60’s are the same so although it says a different focal length it may be the same eyepiece as my 6.5mm HD-60. You should like it. It’s a good EP, especially at used prices. 



#15 kfrank2380

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Posted 25 September 2019 - 01:51 PM

I would get the explorer Scientific 8.8 or 6.7. I have both and they are awesome. Clear from the center to the edges. 82degrees field of view means you don't have to move you scope as much to keep the subject in view. 



#16 sg6

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Posted 25 September 2019 - 02:07 PM

8mm or 6mm, but I guess the 8mm will be more use.

I have the 72ED and an 8mm Paradigm and 6mm WO Planetary clone. Really not a lot in it between the 2.

 

If thinking that a 2x barlow will do much then going to say I doubt it. Need to stop reading "Maximum magnification" and thinking it has any relevance. I have a 3.2mm Paradigm (real nice purple) and I can count the number of times I have used it on the fingers on one foot.

 

Shortest I would suggest you chance is a 4mm - think Meade HD's or ES52's come in a 4mm. But I doubt you will get much use out of it. So expect to spend the money and sit looking at it rather then through it.



#17 MP173

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Posted 25 September 2019 - 03:52 PM

I purchased AT102ED in June and since then have purchased the Astro Tech 9mm, 6mm, and 4mm Plossels from Astronomics for $22 each.  

 

Actually the 6mm and 4mm were $12 on sale.

 

I am not an eyepiece expert, but these work really well...for the money a great value.

 

Perhaps some day I will purchase an expensive EP, but for now I am happy with these plus my 32mm, 26mm, 20mm, and 16mm Meade Plossels.

 

Do I really have 7 eyepieces?

Ed




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