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Best 4mm planetary eyepiece for long eyelashes

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42 replies to this topic

#1 GOLGO13

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Posted 27 January 2020 - 01:34 PM

I have quite a few good eyepieces for planetary work.  Today I mostly use my 12mm Brandon or 12.5mm Ultima with a 3x barlow. But I have to use barlows for them because of my super long eyelashes.

 

Thus, this rules out many of the best ones (TMB SMC, 5mm XO, ZAO). All of those I would also need to barlow Maybe a 10mm or 12mm of one of those would work. 

 

However, I'd like of like to get one that doesn't require a barlow. So I was thinking something like the 4mm Delite? 

 

I had the Televue 3-6 zoom in the past, but the eye relief was still not enough for my eyelashes. 

 

4mm pretty much maxes out my refractors (reasonably) and provides 300x with my 10 inch dob.



#2 JohnBear

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Posted 27 January 2020 - 01:59 PM

Exactly how much ER (mm) do you need?



#3 GOLGO13

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Posted 27 January 2020 - 02:01 PM

10mm is a minimum, but 12+ would be best.



#4 CeleNoptic

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Posted 27 January 2020 - 02:09 PM

4mm Tak TOE claims 10mm eye relief. If you need longer, than it seems just 4mm Vixen SLV or the Delite.


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#5 GOLGO13

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Posted 27 January 2020 - 02:18 PM

I'd be willing to do 10mm if the quality is high enough. Under 10mm it's going to be tough. I prefer to use alt/az mounts and the long eyelashes cause a lot of cleaning/interference.



#6 rkelley8493

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Posted 27 January 2020 - 02:21 PM

I have the same problem with short focal length ortho's & plossls. It feels very invasive when your eyelashes are giving butterfly kisses to the top of the eyepiece. Like my jr. college baseball coach used to say, "it's kinda like kissing your sister."

The 4mm DeLite won't have this problem. It's the first one that came to mind when I read the title. Real solid performer. 


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#7 Spikey131

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Posted 27 January 2020 - 02:33 PM

The Nagler Zoom claims 10mm eye relief.

Go with the Delite.

Or use less mascara😁
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#8 GOLGO13

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Posted 27 January 2020 - 02:49 PM

The 3-6 zoom was usable, but it was at the limit for me on eye relief. And I did have to clean it more often than normal.

 

Turns out I have some issues at high magnifications and small exit pupils. I thought the 3-6 zoom I had was defective, but it turned out to be my floaters. 

 

Thinking about that situation, it maybe best for me to just keep barlowing my brandons and such. 

 

That or consider getting a binoviewer. Though I've tried binoviewers twice in the past and felt it wasn't for me. In fact, I didn't feel like binoviewers helped with my floaters at the time. Not sure why. Though I have "a lot" of floaters. Pretty sure it's related to my thyroid disease which went undiagnosed for many years likely. When I use microscopes it's even more obvious than it is with telescopes.



#9 hoof

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Posted 27 January 2020 - 02:53 PM

I use the shortest focal length TMB SMCs. All eyelashes are too long for those! :).

The solution I came up with is simple: don’t blink while observing. I pull back a bit to blink regularly, but for me at least, I found it easy to not blink and to know when a blink was coming. So far after 15 years of using 3mm eye relief eyepieces I have had no issues with eyelash oil.

My first Nagler 3-6 was constantly in need of cleaning because I hadn’t started doing that yet. But if you take the time to get that habit going, whole new groups of eyepieces become an option.
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#10 eros312

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Posted 27 January 2020 - 02:55 PM

For short eye relief problems I've learned to just pull back from the eyepiece when I have to blink. Becomes second nature before long. 


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#11 eros312

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Posted 27 January 2020 - 02:56 PM

hoof beat me to it. 



#12 starcam

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Posted 27 January 2020 - 03:02 PM

Get your super long eye lashes cut back....


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#13 GOLGO13

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Posted 27 January 2020 - 03:25 PM

Get your super long eye lashes cut back....

I have considered this, but after some research it sounded like a bad idea.



#14 ares53405

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Posted 27 January 2020 - 03:50 PM

Get the 4mm Delite and don't look back.  With 20mm of eye relief you'll be prepared just in case those eyelashes decide to grow even longer.  It's a really nice eyepiece. 

 

Mark


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#15 epee

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Posted 27 January 2020 - 05:22 PM

Delite sounds like the answer.
I was going to point out that you can get a Baader Morpheus in 4.5mm.
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#16 Kutno

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Posted 27 January 2020 - 09:34 PM

 

...

 

However, I'd like of like to get one that doesn't require a barlow. So I was thinking something like the 4mm Delite? 

 

...

 

4mm pretty much maxes out my refractors (reasonably) and provides 300x with my 10 inch dob.

 

Definitely go with the DeLite.



#17 brentknight

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Posted 27 January 2020 - 10:52 PM

Delite sounds like the answer.
I was going to point out that you can get a Baader Morpheus in 4.5mm.

I just picked one of these up today - normal length eyelashes though.  I've just seen so many great reviews of them it seemed the best choice.


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#18 izar187

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Posted 27 January 2020 - 11:44 PM

I have quite a few good eyepieces for planetary work.  Today I mostly use my 12mm Brandon or 12.5mm Ultima with a 3x barlow. But I have to use barlows for them because of my super long eyelashes.

 

Thus, this rules out many of the best ones (TMB SMC, 5mm XO, ZAO). All of those I would also need to barlow Maybe a 10mm or 12mm of one of those would work. 

 

However, I'd like of like to get one that doesn't require a barlow. So I was thinking something like the 4mm Delite? 

 

I had the Televue 3-6 zoom in the past, but the eye relief was still not enough for my eyelashes. 

 

4mm pretty much maxes out my refractors (reasonably) and provides 300x with my 10 inch dob.

Consider a 3.9mm SS3.

https://www.sieberto...rtho page).html


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#19 cimar

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Posted 27 January 2020 - 11:57 PM

Hi,

would reccomend Radians, DeLites, Delos etc.



#20 Deep13

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Posted 28 January 2020 - 01:11 AM

Try not to blink so much. ... Seriously, Pentax 3.5 or 5mm XW.

#21 mikeDnight

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Posted 28 January 2020 - 03:42 AM

I have quite a few good eyepieces for planetary work.  Today I mostly use my 12mm Brandon or 12.5mm Ultima with a 3x barlow. But I have to use barlows for them because of my super long eyelashes.

 

Thus, this rules out many of the best ones (TMB SMC, 5mm XO, ZAO). All of those I would also need to barlow Maybe a 10mm or 12mm of one of those would work. 

 

However, I'd like of like to get one that doesn't require a barlow. So I was thinking something like the 4mm Delite? 

 

I had the Televue 3-6 zoom in the past, but the eye relief was still not enough for my eyelashes. 

 

4mm pretty much maxes out my refractors (reasonably) and provides 300x with my 10 inch dob.

One way to help overcome eyelash problems would be to use longer focal length eyepieces in a binoviewer with a barlow attached to its nose piece. Bino viewing also helps with floaters at high power. A pair of cheap 16.8mm Abbe orthoscopics in my binoviewer noticeably out performed a superb single 5mm TMB Super Monocentric for lunar.

As a single high power eyepiece I'd be much more inclined to go for the superlative Pentax XW 3.5mm which is exquisite and very orthoscopic in performance.  At 4mm you're only starting to tickle the true potential of your Vixen refractor and the 3.5mm XW may just surprise you.



#22 Miranda2525

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Posted 28 January 2020 - 04:10 AM

http://www.televue.c...Tab=EP_EDE-04.0

 

https://optcorp.com/...escope-eyepiece



#23 Subaru45

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Posted 28 January 2020 - 07:13 AM

+1 for the 3.9 SS3  



#24 bratislav

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Posted 28 January 2020 - 08:46 AM

Use eyepieces that are very tolerant of eye pupil placement (classic Ortho is a good example of this) and pull back. Planets rarely subtend more than a few degrees in the eyepiece (even Jupiter at 300X is barely 4 degrees across), you simply don't need to see full AFOV. Seeing central 10 degrees AFOV is plenty, really. I used to use my 4, 5 and 6mm Orthos a lot (which have no eye relief to speak of), but lately 3-6 Nagler Zoom offers the same (or better) image quality with a huge bonus of being able to dial just the right magnification for given seeing conditions. 

One exemption is Moon, where well corrected, wide AFOV is desirable. In that case you may need to invest in long ER, wide AFOV eyepieces. 



#25 csrlice12

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Posted 28 January 2020 - 11:52 AM

May as well ask, which knife should I bring to the gunfight?  




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