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AT 102ED + ES82 30mm or a SW 100ED

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#1 The Luckster

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Posted 24 November 2019 - 12:22 PM

Well, I have the itch again to spend money, and I'd like to read your experience and thoughts on what I wish to get into more debt with...

 

But first:  I am 99% visual, and what little AP I may dabble in is a basic planetary setup.  I prefer refractors and I enjoy widefield, but I'm not against getting a longer focus refractor.  All of my current and soon to be current gear is listed in my signature.

 

Debt Option One (my original plan):  AT102ED f/7 plus an ES82 30mm 2"

 

Debt Option Two (The Other Option I just discovered...):  SW EvoStar 100ED f/9

 

Personally, I think I'm a winner with either option, but I would like to read your thoughts....

 

 

Thank you

 

CS

 

jason



#2 nicoledoula

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Posted 24 November 2019 - 12:32 PM

If the long one is in contention than this one should be as well. https://www.altairas...ed-Focuser.html   And maybe a Masuyama 32mm 85* to go with it.


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#3 Mitrovarr

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Posted 24 November 2019 - 01:00 PM

What niche are you hoping to fill with the new telescopes that your old ones weren't already covering? It seems like your 5" maksutov might be as good on planets as either of these, and on the widefield front, you've got the ST120. Are you hoping to use it as a general purpose grab and go?


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#4 drd715

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Posted 24 November 2019 - 01:02 PM

Lookup and follow this thread. It is all about your question/ decision. Cn-

102ED for Sure -- but F7 or F11?

Started by Bomber Bob, Nov 16 2019 12:02 AM

He finally purchased the AT-102ED F-7. There is his follow on report on a TS-102Ed thread linked from the first forum thread.



Personally I am considering the Altair 102ED F-11 (or the TS version). You may find it a bit long, but there are advantages to long Fl number scopes (and disadvantages).

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#5 The Luckster

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Posted 24 November 2019 - 02:53 PM

What niche are you hoping to fill with the new telescopes that your old ones weren't already covering? It seems like your 5" maksutov might be as good on planets as either of these, and on the widefield front, you've got the ST120. Are you hoping to use it as a general purpose grab and go?

 

Yes, I use my two Maks for planetary, and they perform well.  I also use my refractors for planetary, CA and all.  I somewhat prefer planetary / higher magnification observing with a refractor.  I guess what I'm trying to convey is I can live without my Maks, but I have to have a refractor.

 

CS

 

jason


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#6 Jond105

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Posted 24 November 2019 - 03:41 PM

I’m on my 3rd 100ED, great great scope, but look at the focuser.... the weak point of these scopes out of the box. 
 

Im going to go biased and say the 100ED is a great option. The views are excellent. I like the 900mm focal length, as I generally use no Barlow’s. Added bonus to buying new is the case and accessories. 
 

Ive seen the AT102ED, and the mechanics out of the box are better. I’m sure the views are almost just as sharp as my 100ED. Shorter, so may be easier to mount, though I’ve had no problems mounting my 100ED ever. 
 

so yes, biased would tell you the 100ED Evostar which is just an amazing amazing scope, but both are. Pushing mag on this scope is absolutely no problem.  
 

 

Then maybe one get ahold of an ES82 30mm as it’s great in this scope as well. 

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#7 The Luckster

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Posted 24 November 2019 - 04:32 PM

If the long one is in contention than this one should be as well. https://www.altairas...ed-Focuser.html   And maybe a Masuyama 32mm 85* to go with it.

 

Yes, a possibility.  But after some power-reading regarding the Starwave 102ED f/11, I am going to stick to my original two options.  Not that there is an issue with the Starwave, I just don't want to go longer than f/9 at this point

 

Thanks for the alternative.

 

CS

 

jason



#8 Steve Cox

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Posted 24 November 2019 - 04:39 PM

If you're looking for a great rich-field capability, then option one is your best choice, providing a real 3.5deg TFOV.  I have the AT102ED and a 31T5 (which the 30ES82 is similar) and they are a match made in heaven, especially for clusters and milky way regions.  It's also an excellent combination used with good 2" narrowband filters.  And like mentioned above, the mechanics on the AT are wonderful, especially at the price point.


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#9 25585

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Posted 24 November 2019 - 06:58 PM

F9 you could use an ES68 40 instead. Having a couple of F9 100mm fracs (SW & Tak), they are versatile Apos, the SW has very little CA being F9. Upgrade the SW focuser to a Moonlite for deluxe.  


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#10 The Luckster

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Posted 24 November 2019 - 07:16 PM

I’m on my 3rd 100ED, great great scope, but look at the focuser.... the weak point of these scopes out of the box. 
 

Im going to go biased and say the 100ED is a great option. The views are excellent. I like the 900mm focal length, as I generally use no Barlow’s. Added bonus to buying new is the case and accessories. 
 

Ive seen the AT102ED, and the mechanics out of the box are better. I’m sure the views are almost just as sharp as my 100ED. Shorter, so may be easier to mount, though I’ve had no problems mounting my 100ED ever. 
 

so yes, biased would tell you the 100ED Evostar which is just an amazing amazing scope, but both are. Pushing mag on this scope is absolutely no problem.  
 

 

Then maybe one get ahold of an ES82 30mm as it’s great in this scope as well. 

 

Would you say in your opinion that the focuser on the SW 100ED is at least better than stock focusers found on the 80 Short Tube, Meade 102 f/6 and the Orion ST120 f/5 refractors? 

 

Thanks

 

CS

 

jason



#11 punk35

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Posted 24 November 2019 - 08:10 PM

I had a reply all written out but my phone hates me. Basically it was:

fpl-53 @ f-9 in a basic tube. I believe they have two speed focusers..?  Better than a standard Synta r&p. Everyone seems to love them for their great views.

 

fk-61 @ f-7 in a very nice tube. Very good focuser, ( probably) better baffling/ stray light control.  Owners seem to love them for their great views and great build quality. 

 

Two different, yet overlapping tools. Both are very nice. 

 

Choose the one that fills the roll you want it to best. You’ll have a great scope either way.
 


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#12 Jond105

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Posted 24 November 2019 - 10:10 PM

Would you say in your opinion that the focuser on the SW 100ED is at least better than stock focusers found on the 80 Short Tube, Meade 102 f/6 and the Orion ST120 f/5 refractors? 

 

Thanks

 

CS

 

jason

Oh yeah, most definitely better than those. The problem I’ve had with all 3 is slippage with the heavier eyepieces. Yes, you can adjust it, but getting it just right to where there isn’t grinding from being too tight or dual speed knob not able to focus in with a heavier eyepiece, could take a long time. 


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#13 The Luckster

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Posted 25 November 2019 - 12:52 PM

Thank you all...it is done.  Decision made, order placed.

 

Thank you, Gene, for your PM.

 

I purchased the following:

 

Sky Watcher EvoStar 100ED f/9

ES82 30mm 2"

 

I'll need to add another Alt-Az tripod in the future, I'll just get another Twilight 1 (the AT version this time).

 

Thank you all, again...reports to follow soon.

 

CS

 

jason


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#14 drd715

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Posted 25 November 2019 - 01:15 PM

Yea, that $624 price at B&H is amazing. Got me tilting that way, but I'm not really big on the Crayford, rather have a bit better focuser. Still looking here, but have several options in mind from the 100 mm F-9 SW to 102ed F-11 altair/ TS or maybe a 115 triplet F-7 that is calling.

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#15 Jond105

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Posted 25 November 2019 - 02:26 PM

Thank you all...it is done.  Decision made, order placed.

 

Thank you, Gene, for your PM.

 

I purchased the following:

 

Sky Watcher EvoStar 100ED f/9

ES82 30mm 2"

 

I'll need to add another Alt-Az tripod in the future, I'll just get another Twilight 1 (the AT version this time).

 

Thank you all, again...reports to follow soon.

 

CS

 

jason

Congrats. I know that mount may have a little trouble with that scope. I know many that have not liked that combo due to the length of the 100ED. Hopefully it all works out for better than others. 
 

Cant wait to hear how you like the new scope. 


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#16 The Luckster

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Posted 25 November 2019 - 03:00 PM

Congrats. I know that mount may have a little trouble with that scope. I know many that have not liked that combo due to the length of the 100ED. Hopefully it all works out for better than others. 
 

Cant wait to hear how you like the new scope. 

It'll be fine;  It's all in the balancing.

 

And thanks! I'm glad I chose this (modified) option.  Also, I'm sure the SW's focuser will be just fine for me to begin with.

 

CS

 

jason


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#17 The Luckster

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Posted 25 November 2019 - 03:06 PM

Yea, that $624 price at B&H is amazing. Got me tilting that way, but I'm not really big on the Crayford, rather have a bit better focuser. Still looking here, but have several options in mind from the 100 mm F-9 SW to 102ed F-11 altair/ TS or maybe a 115 triplet F-7 that is calling.

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Actually, the price is $626.00 USD + Tax + Shipping.  Now, Amazon is also listing the SW 100 f/9 for $626 right now, with Prime shipping.  Still gotta add tax...

 

CS

 

jason


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#18 punk35

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Posted 25 November 2019 - 05:26 PM

Congrats. It’s hard to make a bad choice these days. Looking forward to your reports and impressions. 



#19 Jond105

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Posted 25 November 2019 - 05:51 PM

 

 

And thanks! I'm glad I chose this (modified) option.  Also, I'm sure the SW's focuser will be just fine for me to begin with.

 

CS

 

jason

When I received my 120ED, the focuser(same as 100ED) after a certain altitude could not move my ES82 30mm, so you may need to do some tweaking before you get it mounted up, so you don’t have the same problem I did. 


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#20 The Luckster

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Posted 25 November 2019 - 06:08 PM

When I received my 120ED, the focuser(same as 100ED) after a certain altitude could not move my ES82 30mm, so you may need to do some tweaking before you get it mounted up, so you don’t have the same problem I did. 

 

Copy that and thanks.

 

CS

 

jason


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#21 25585

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Posted 25 November 2019 - 07:56 PM

It'll be fine;  It's all in the balancing.

 

And thanks! I'm glad I chose this (modified) option.  Also, I'm sure the SW's focuser will be just fine for me to begin with.

 

CS

 

jason

I suggest trying the ES82 30mm in your OE focuser indoors first.  


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#22 The Luckster

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Posted 25 November 2019 - 08:07 PM

I suggest trying the ES82 30mm in your OE focuser indoors first.  

 

Will do.  I'm actually more interested in mounting that bad-boy to my incoming AT72II, but it will be tested with the SW and the 120.

 

CS

 

jason


Edited by The Luckster, 25 November 2019 - 08:09 PM.

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#23 punk35

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Posted 25 November 2019 - 08:41 PM

I’ll be interested to hear your impressions of the AT72edII 

That was the scope I was going to buy, but was out of stock, so I went with the AT102ED when it was $499. 
 


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#24 HowardSD

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Posted 25 November 2019 - 09:26 PM

I’ll be interested to hear your impressions of the AT72edII 

That was the scope I was going to buy, but was out of stock, so I went with the AT102ED when it was $499. 
 

I would too! Looking for a used AT72ed or AT72edII myself, want to have a dabble at AP! 

 

I currently own one of the original AT 102 ed's had it out last night and spent more time with my ES 68 34mm than any other EP (also have the 24 & 16, and 11-4.7mm 82's) was beautiful clear night and fun to star hop managed an hour before i succumbed to the cold. I would have been another advocate for the AT102, really nice instrument, build quality, focuser, nice optics but the decisions been made!


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#25 BKBrown

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Posted 26 November 2019 - 09:47 AM

Congratulations! You have made a terrific purchase and I suspect you will appreciate your SW 100ED every bit as much as I do mine. Some folks have commented on the focuser, I will say it is perfectly serviceable and only needs a bit of adjustment. Here are two sites that will clue you in on adjusting and "supercharging" your focuser:

 

https://teleskop-aus...g_justieren.pdf

https://www.astronom...rayford-focuser

 

These are not difficult operations, do what you think you need to if you think your focuser needs tweaking. Have fun!

 

Clear Skies,

Brian snoopy2.gif


Edited by BKBrown, 26 November 2019 - 05:02 PM.

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