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Equipment Discussions >> Eyepieces

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Sean Puett
Carpal Tunnel
*****

Reged: 09/06/10

Loc: always cloudy, washington
is anyone planning on buying the ES100 30mm?
      #5727940 - 03/12/13 11:37 AM

7lbs and $1200 (roughly) 3" diagonal and focuser (much more money). I can't see doing this but, can you? Are you going to buy this eyepiece? If it is a dob, is your secondary large enough to illuminate this eyepiece? Are you going to increase the size of your CO to accommodate this giant? I think it could possibly be worth doing in one of those giant refractors like a 10" f15 or the like but, for the rest of us, I really think it is crazy.

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Sarkikos
Postmaster
*****

Reged: 12/18/07

Loc: Suburban Maryland, USA
Re: is anyone planning on buying the ES100 30mm? new [Re: Sean Puett]
      #5727969 - 03/12/13 11:49 AM

No, not me, for all the reasons you mention.

Mike


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MRNUTTY
Carpal Tunnel
*****

Reged: 11/22/11

Loc: Mendon, MA
Re: is anyone planning on buying the ES100 30mm? new [Re: Sarkikos]
      #5728065 - 03/12/13 12:30 PM

Same here. No possible rationalizations :-(

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aa5te
Genial Procrastinator
*****

Reged: 08/30/08

Loc: Clinton, TN
Re: is anyone planning on buying the ES100 30mm? new [Re: MRNUTTY]
      #5728086 - 03/12/13 12:37 PM

I hear that Admiral Ackbar is going to buy two of them to binoview with.

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MRNUTTY
Carpal Tunnel
*****

Reged: 11/22/11

Loc: Mendon, MA
Re: is anyone planning on buying the ES100 30mm? new [Re: aa5te]
      #5728113 - 03/12/13 12:47 PM

IT'S A TRAP!!

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Svezda
scholastic sledgehammer


Reged: 06/01/07

Loc: Texas
Re: is anyone planning on buying the ES100 30mm? new [Re: Sarkikos]
      #5728119 - 03/12/13 12:50 PM

Quote:

No, not me, for all the reasons you mention.

Mike



Me too...my main reason would be that the increase of actual and apparent FOV compared to an already large FOV 31 Nagler is not very much, and to get that extra would cost a difference of $750 compared to the fairly easily available used/nearly like new price of a 31NT5 (which I bought new in the incredible Hayneedle + TeleVue sale a few years ago -I bought it new for nearly the same price as a used one).


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t.r.
Post Laureate
*****

Reged: 02/14/08

Loc: Upstate NY
Re: is anyone planning on buying the ES100 30mm? new [Re: Svezda]
      #5728144 - 03/12/13 01:07 PM

Click Here!

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Sean Puett
Carpal Tunnel
*****

Reged: 09/06/10

Loc: always cloudy, washington
Re: is anyone planning on buying the ES100 30mm? new [Re: t.r.]
      #5728236 - 03/12/13 01:53 PM

I thought this was the response I would get. I did expect someone with a giant observatory mounted refractor to be excited about the prospect though. I am certain that I read at least one comment about someone looking forward to this eyepiece so maybe we'll get a yes or two later:-)

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Pollux556
Pooh-Bah
*****

Reged: 12/14/08

Re: is anyone planning on buying the ES100 30mm? new [Re: Sean Puett]
      #5728254 - 03/12/13 02:11 PM

I'd like to try this experiment but I dont have monney for it.

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careysub
Carpal Tunnel
*****

Reged: 02/18/11

Loc: Rancho Cucamonga, CA
Re: is anyone planning on buying the ES100 30mm? new [Re: Sean Puett]
      #5728263 - 03/12/13 02:18 PM

Other than a huge observatory scope, I would think that a large aperture refractor would be the best candidate for this, like the Stellarvue 160 mm Apo.

It comes with a 3.5" focuser and should be able to make use of the full field stop. And the cost of this EP is less disproportionate to the cost of the scope. Once you've bought the 160 mm Apo and suitable mount you've dropped $20 grand or so. What's another $1200?


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Aquatone
sage


Reged: 03/23/06

Loc: Moraga, CA (Bay Area)
Re: is anyone planning on buying the ES100 30mm? new [Re: Pollux556]
      #5728264 - 03/12/13 02:18 PM

Yes, I have preordered one for a large refractor. (The exit pupil is too big for my Newtonian)

Kudos to Explore for taking risks and pushing things a bit.

Chris


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Dunkstar
super member


Reged: 03/26/12

Loc: Under the sky
Re: is anyone planning on buying the ES100 30mm? new [Re: Aquatone]
      #5728551 - 03/12/13 04:38 PM

If they make it suitable for a big cat with no loss of light then never say never

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Pkgastro
member


Reged: 12/27/12

Re: is anyone planning on buying the ES100 30mm? new [Re: Dunkstar]
      #5728589 - 03/12/13 05:02 PM

I held this thing in my "arms" at WSP! this thing is so big I asked the guys from ES if it was a prop!!!

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dscarpa
Post Laureate
*****

Reged: 03/15/08

Loc: San Diego Ca.
Re: is anyone planning on buying the ES100 30mm? new [Re: Sean Puett]
      #5728630 - 03/12/13 05:20 PM

Not me. It would be the death of my WO Crayfords. David

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Scanning4Comets
Markus
*****

Reged: 12/26/04

Re: is anyone planning on buying the ES100 30mm? new [Re: dscarpa]
      #5728636 - 03/12/13 05:24 PM

Not in this lifetime, or the next!

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jhirsch
sage
*****

Reged: 10/06/10

Loc: Ohio
Re: is anyone planning on buying the ES100 30mm? new [Re: t.r.]
      #5728840 - 03/12/13 07:15 PM

Quote:

http://www.youtube.com/watch?v=3tvdCHi4Qac








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Sean Puett
Carpal Tunnel
*****

Reged: 09/06/10

Loc: always cloudy, washington
Re: is anyone planning on buying the ES100 30mm? new [Re: jhirsch]
      #5728934 - 03/12/13 08:29 PM

Large refractor for the win.
I believe the large secondary makes this EP impossible for the scopes that would be the best customers for this. Because it would be great to have the extra fov in a large dob but, balance issues would be hard to deal with as well. The 25mm is probably the best we can hope for.


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pbsastro
professor emeritus
*****

Reged: 03/21/07

Re: is anyone planning on buying the ES100 30mm? new [Re: Sean Puett]
      #5729068 - 03/12/13 09:32 PM

I am first in line to buy it, and I have reasons to believe this will be the very best eyepiece in the world available commercially.
This eyepiece will be perfect for any scope that meets four requirements: flat field, coma correction and good illumination at 52mm circle (eyepiece field stop), and f/5 or slower.
So, C11HD and C14HD meet all perfectly.
Any refractor with 3.5" focuser and focal length starting at 1200mm will meet all requirements perfectly.
Dobs will not comply until a larger coma corrector is available. In any case given the trend of dobs to go faster these days (f/3 to f/4), a 30mm focal length is not important. Large f/5 dobs may like it when large coma corrector is available.
I plan to go with a 24" f/3 in the future, but I will use a Ethos 17 there. Meanwhile, the 30/100 will be master of the 7" apo and C14HD.
That is it, as simple as that. I don't understand why people keep repeating this eyepiece has a very small target audience. I think they do not understand how many C11HD, C14HD, and >=6" refractors are out there, increasing every day. Of course a $1500 eyepiece does not need to sell as much as a $300 eyepiece.


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Don Taylor
sage


Reged: 07/12/09

Loc: South TEXAS
Re: is anyone planning on buying the ES100 30mm? new [Re: Sean Puett]
      #5729095 - 03/12/13 09:47 PM

I plan on buying it as soon as I can get a hybrid .965 to 3" diagonal for my 60mm refractor.

Edited by Don Taylor (03/12/13 09:49 PM)


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hfjacinto
I think he's got it!
*****

Reged: 01/12/09

Loc: Land of clouds and LP
Re: is anyone planning on buying the ES100 30mm? [Re: Don Taylor]
      #5729120 - 03/12/13 09:57 PM

If I had a scope that could make use if this eyepiece, I would get it. I already want the 9MM 120* one.

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