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#26 Terra Nova

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Posted 06 November 2019 - 08:19 PM

. Is this why your 100ED went up?
only one reason.
 
The ED is f9 making it 900 mm, which is kind of long.
It does not mount on my porta or tw II
 
I am of the thinking now that refractors should be short and fast.
Mirror scopes should be big.
 
6 inch dob beats the 100 in just about everything, super easy to set up and has a street value of $150.
 
If I ever do try some picture taking the 100mm is probably too long.
I just picked up a 80mm f 7.5 ED for ed fun.  mounts on the porta, has a wider field.
 
Now if I see a 100 f7 ED that could be the perfect scope.

A 127mm Mak is a perfect complement for a Vixen Porta II, and a 102mm F7 apo works pretty well on the Porta II too! ;)

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#27 Jond105

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Posted 06 November 2019 - 08:20 PM

Keep in mind the ergonomics of the finder. I generally don’t use my iOptron 6” Mak on AZ4 because the finderscope ends up n an awkward position. Can’t rotate it in rings like a refractor. Granted, nothing a Telrad or Rigel can’t solve, but something to consider.

Scott


Thanks for that Scott. I wouldn’t had even thought of adding a Rigel to the scope for better finder.

#28 lakeorion

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Posted 06 November 2019 - 09:43 PM

I would add that, actually, the 127 is a 'true' grab and go...

Bah.  I have a Meade 14" in the garage on wheels.  As long as I only want to go 15' out into the driveway, it can be considered grab and go. lol.gif

 

Seriously, my 127 is awesome, but I'm planning on a 180 to amp things up a bit.  Anything larger than that is a whole different ecosystem.


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#29 caheaton

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Posted 06 November 2019 - 09:54 PM

Why not go for broke...get the 180mm!  grin.gif


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#30 Jond105

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Posted 07 November 2019 - 05:19 AM

Why not go for broke...get the 180mm! grin.gif


I’d love to go 180, but no mount to support it and not really wanting to go that route just to have to spend more.

#31 Bean614

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Posted 07 November 2019 - 06:19 AM

Bah.  I have a Meade 14" in the garage on wheels.  As long as I only want to go 15' out into the driveway, it can be considered grab and go. lol.gif

 

Seriously, my 127 is awesome, but I'm planning on a 180 to amp things up a bit.  Anything larger than that is a whole different ecosystem.

I DO know what you mean!  I consider my 10" Dob a G-N-G.  This is what happens when there's no 'Consensual Validation of Terminology'.    So, by a 'true' G-N-G, I should state that my definition is this: Everything (Scope, Mount, Tripod, EP) grabbed in One Hand on the way out the door.  Set it down, focus, observe.



#32 Jond105

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Posted 07 November 2019 - 06:25 AM

My 10” dob was G&G out the basement as well. Just, in my viewing habits(before someone says I’m crazy for feeling this way) a 10” isnt needed yet for me. I live a couple miles north of Detroit with no dark site observing any time in my future with kids, wife, and work. When their older, I’ll go bigger, but for now, I love my doubles, planetary, some clusters. Mostly doubles. 


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#33 Bataleon

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Posted 07 November 2019 - 06:27 AM

Isn't grab and go a bit of a subjective term? Depending on one's age and strength, a grab and go could be anything from a tabletop mak to a big dob.

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#34 Erik Bakker

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Posted 07 November 2019 - 12:23 PM

If that shed is unheated and fairly close to ambient temperature, a 150 MCT will likely need to only address little temperature changes. Isolating your tube with bubblewrap or the fancier likes should make it even better behaved and a fine winter planetary instrument. 


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#35 grif 678

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Posted 07 November 2019 - 01:19 PM

I have a 127 celestron mak, and with using my WO binoviewer, it is like having a bigger scope, because it shows much more detail when using both eyes. And the size is very manageable, the 150 mak does not seem much larger, but it is significantly larger and heavier. This may help, hope so.


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#36 photoracer18

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Posted 07 November 2019 - 03:20 PM

Now that I have put together an SV M2 mount I can use my Orion Argonaut (Intes MK67) on something other than a GEM mount. While my Orion Star Seeker IV carries my 5" cats fine (except the IM MN56), I have been leary of sticking the MK67 on it.


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#37 Rock22

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Posted 07 November 2019 - 04:01 PM

Seems like 150, dew shield, reflectix wrap, and covered in the shed makes this a grab and go scope. With more light grasp for fainter doubles, might even put an 8-24 zoom in it and call it an easy ready to go scope. Wait for summer, compare views with the frac, and sell one off!! Appreciate this guys. 

I vote for the 150mm, too.

 

I have the 180mm as my best performing scope, but I don't have a good refractor like yours, which I think would be a good complement to the 150mm mak you get.  The 180mm is bulkier, and while still an easy move for me, it needs, as you already know, better mounting.  Not grab-n-go for me for sure.  Insulated and collimated, it is an excellent scope, that I still use very often.  I can imagine myself using a 150mm mak even more often.  I was set on the 150mm before a good deal for the 180mm came up.

 

I have very similar eyepieces to yours, so I sincerely believe you will enjoy the views through the 150mm.  The wide AFOVs will be such a benefit of your eyepieces.  I wonder if you might be able to use the 30mm as a finder EP, and I think the 13mm will probably begin showing nice views at 138x.  The 6.7mm would probably do excellently at 269x when the seeing is good.

 

Through my mak, I had some of my best views of globulars and M42 details when they were at higher altitudes.  Enjoyed every moment even in the cold (nothing compared to the cold where you're at of course, so I can't complain).

 

Jupiter and Saturn look good at higher powers when seeing is above average.  Neptune and Uranus were more distinctly noticeable as planets, and were cooler looking green-blue blurs.  I'm looking forward to hearing about your experience with the 150.


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#38 gfstallin

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Posted 07 November 2019 - 09:27 PM

Go for the 150 if the cash is there, though the 127 is really very portable (like carry on suitcase portable). The 150 will give you a little more aperture than you already have, which isn't a bad thing. Since it will be living in an unheated environment, I cannot imagine it would take very long to cool down to ambient over your 120 ED. 

 

Overlap? "So what?" is the correct response to that. I actually found a C8 to be more portable than the SW 102ED (F/9) refractor. If one telescope is more portable or less of a perceived hassle when the weather is cold and you want to make the most of your time outdoors, then they don't really overlap in real-world capability. Besides, the only way you'd really avoid any performance overlap with your 120 ED in terms of perceived contrast is to get a C9.25 or an 8" newtonian. Basically, you'll need another few inches of aperture to make a big difference. The visual difference between my C8 and C9.25 is noticeable if you really look for it, but it isn't a WOW! type of difference. The C8 gets used more often than the C9.25 because 7 lbs. of telescope and another 11 lbs. of counterweight make more of a WOW! difference when setting up and tearing down. 

 

George

 

 

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C5 with mount in carry on suitcase. 


Edited by gfstallin, 07 November 2019 - 09:28 PM.

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#39 Usquebae

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Posted 08 November 2019 - 12:36 PM

. Is this why your 100ED went up?

only one reason.

 

The ED is f9 making it 900 mm, which is kind of long.

It does not mount on my porta or tw II

 

I am of the thinking now that refractors should be short and fast.

Mirror scopes should be big.

 

6 inch dob beats the 100 in just about everything, super easy to set up and has a street value of $150.

 

If I ever do try some picture taking the 100mm is probably too long.

I just picked up a 80mm f 7.5 ED for ed fun.  mounts on the porta, has a wider field.

 

Now if I see a 100 f7 ED that could be the perfect scope.

Grab your checkbook:  Astronomics sells a 4" F/7 ED for $600.

 

I get the sentiment against the 100 F/9.  It's quicker and easier for me to set up my 8" dob, and I wonder what the frac is doing better.  But that big, wide, clean, perfect views of open clusters and asterisms, with dark velvet background (due to less light collection), all on an EQ mount with motion controls... it's an experience I enjoy, even amidst quicker options with greater light grasp.  I also tend to prefer this scope for lunar views to any other setup, unless there's excellent seeing to support over 200x (which happens maybe once a year where I live).

 

A 150 Mak living in the shed all winter sounds great.  I have a C90 Mak I keep in my trunk through the winter, packed in a plastic bin with mount, EPs, etc.  I also keep a binned C6 in the garage, though my mounts usually live in the house.


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#40 jcj380

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Posted 08 November 2019 - 02:18 PM

I've been thinking about a small Mak for lunar.  This thread is *not* helping me resist...


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#41 Rock22

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Posted 08 November 2019 - 05:12 PM

I've been thinking about a small Mak for lunar.  This thread is *not* helping me resist...

Resistance is ...



#42 vdog

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Posted 09 November 2019 - 01:08 AM

I've been thinking about a small Mak for lunar.  This thread is *not* helping me resist...

"Luke, it is your destiny . . ."  sct2.png 


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