Refractor type Telescopes

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Achromat Vs Semi-APO Vs APO - What's The Difference?

Last post by Bigzmey « Sat Jun 26, 2021 11:32 pm
Replies: 59
by JayTee » Sat Aug 17, 2019 9:58 pm
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The notion for this article hit me this morning as I was perusing my email Astro-Ads .

I thought this topic would be a relatively easy define and go...

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but I love to hear about other people experiences with 6 fracs.

Some economic priced Skywatcher refractors have no push-pull screws. I had a...
59 Replies

66782 Views

Last post by Bigzmey
Sat Jun 26, 2021 11:32 pm
90mm Doublets?

Last post by pakarinen « Wed Mar 22, 2023 1:24 pm
Replies: 11
by pakarinen » Mon Mar 20, 2023 6:06 pm

First post

I see 90mm triplets for sale all over the place and several 90mm achros, but no 90EDs. Any reason why there aren't any doublets? Too much overlap...

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Borg 90. And there is/was one for sale on AM. Unfortunately, I don't have that much dinero in the astro budget right now.

11 Replies

87 Views

Last post by pakarinen
Wed Mar 22, 2023 1:24 pm
Your refractor - let's see it

Last post by chris_g « Wed Mar 15, 2023 8:38 pm
Replies: 145
by Nakedgun » Sat Feb 13, 2021 8:41 pm
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My Pocket Borg, looking for power:

IMGP5552 - Copy.JPG

Last post

Looks as though you have a scope room like I do.

Actually, it's my office off the back of my house, it's become my observatory control. I also...
145 Replies

49580 Views

Last post by chris_g
Wed Mar 15, 2023 8:38 pm
Third refractor to almost matching two same refractors

Last post by TareqPhoto « Fri Mar 10, 2023 11:31 pm
Replies: 7
by TareqPhoto » Wed Jan 04, 2023 10:38 pm

First post

Hi all and happy new year,

For this year i will try to minimize my buying of gear but finalize or finish what is missing from last 2 years of...

Last post

Ive had couple of glasses of wine so this is stream of consciousness thing

Irrelevant, keep this away from the topic :mrgreen: :lol:

7 Replies

176 Views

Last post by TareqPhoto
Fri Mar 10, 2023 11:31 pm
Celestron SS80

Last post by Bigzmey « Sun Feb 26, 2023 12:32 am
Replies: 4
by LDW47 » Tue Jan 24, 2023 3:54 pm

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Has anyone made or boughten a dew shield for the 25-30 yr.old Celestron SS80, what they called a spotting scope ? It looks like a refractor with a...

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Basically, I wrap the foam sheet around the scope so it makes a slightly conical tube with wider end out. Then, mark where the ends overlay. Take it...

4 Replies

126 Views

Last post by Bigzmey
Sun Feb 26, 2023 12:32 am
I have a dilemma and your opinion is requested.

Last post by Lady Fraktor « Tue Feb 21, 2023 7:45 pm
Replies: 27
by messier 111 » Wed Feb 01, 2023 2:06 am
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hi all,
I need your opinion.
I am looking for a refractor between 115mm and 130mm.
I am looking for a very high quality refractor.
I only do visuals,...

Last post

Excellent news Jean-Yves!
I hope you have many enjoyable evenings with it :)
27 Replies

538 Views

Last post by Lady Fraktor
Tue Feb 21, 2023 7:45 pm
Meade 5000 102ED F7 eyepiece compatability?

Last post by Lady Fraktor « Thu Feb 02, 2023 7:09 pm
Replies: 20
by johnyjf » Fri Jan 20, 2023 10:18 am
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I just recently purchased the above scope, it is in very good used condition. I have an issue with it that seems difficult to resolve. Basicially it...

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It likely will not make things worse but you may require a extension tube (or two) for reaching outward focus.
Is the Baader drawtube longer or...
20 Replies

315 Views

Last post by Lady Fraktor
Thu Feb 02, 2023 7:09 pm
Skywatcher 102 f/5 Startravel, review and first light.

Last post by Lady Fraktor « Wed Feb 01, 2023 5:55 am
Replies: 10
by John Baars » Tue Jan 31, 2023 4:45 pm

First post

Skywatcher Startravel 102 f/5 First Light.

Background

In December 2022, there was a number of times when I grabbed my grabngo 102mm Maksutov on...

Last post

A very nice report John, I am glad you are enjoying the new grabngo setup :)

10 Replies

259 Views

Last post by Lady Fraktor
Wed Feb 01, 2023 5:55 am
Now I have gone and done it!

Last post by Greenman « Mon Jan 23, 2023 2:07 pm
Replies: 13
by Greenman » Tue Jan 03, 2023 2:45 pm

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I was interested in the New Dwarf Labs Dwarf II scope for outward bound work with my small club. After much discussion with my Missus she agreed I...

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Yes, or on a tablet etc. As I will be using with groups on star parties I will use an Ipad to get a larger view. You can export the Tiff files and...

13 Replies

461 Views

Last post by Greenman
Mon Jan 23, 2023 2:07 pm
Decent Sale AT 80 ED and 102ED

Last post by messier 111 « Thu Jan 19, 2023 12:25 am
Replies: 14
by Frazman » Tue Jan 17, 2023 7:07 pm

First post

I am super pleased with the AT 72 ED I recently picked up now these two are on sale. Leaning hard into the 80 as it would be an upgrade from my old...

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Would that be for AP or visual?

for the visual only.

My first APO/ED scope was 102mm. It was lightweight and portable with sharp optics, but...

14 Replies

266 Views

Last post by messier 111
Thu Jan 19, 2023 12:25 am
SW80ed apo doublet pro vs WO 71 GT triplet pro

Last post by pakarinen « Tue Jan 03, 2023 7:25 pm
Replies: 3
by Mirrorgirl » Mon Dec 26, 2022 1:43 pm

First post

HI there

Just wondered what your thoughts are on which scope is the best out off these two I know there's a price difference but I just wondered...

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A triplet will take longer to cool down to equalize temperature although I couldn't say how much longer. The triplet will probably be heavier than...

3 Replies

151 Views

Last post by pakarinen
Tue Jan 03, 2023 7:25 pm
Vixen A62SS

Last post by Lady Fraktor « Sat Nov 12, 2022 9:11 pm
Replies: 3
by LDW47 » Sun Oct 30, 2022 12:01 am

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Anyone own / have experience with a Vixen A62SS telescope that they can pass on to someone who just bought one ?

Last post

A nice looking refractor, how are the views?

3 Replies

204 Views

Last post by Lady Fraktor
Sat Nov 12, 2022 9:11 pm
World worst baffles?

Last post by Michael131313 « Thu Nov 10, 2022 5:01 am
Replies: 8
by Lady Fraktor » Sat Oct 01, 2022 8:20 pm

First post

I cannot remember which site I was on when I came across this image.

WTH.jpg

Last post

Thanks Gabby. Interesting and a good lesson for me

8 Replies

360 Views

Last post by Michael131313
Thu Nov 10, 2022 5:01 am
80mm ed triplet

Last post by chris_g « Wed Nov 09, 2022 2:01 pm
Replies: 39
by hatflyer » Fri Nov 04, 2022 12:35 pm
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Are any of these triplets any good for astrophotography?

saxon 80mm Apochromatic Air-Spaced ED Triplet ; 480mm f/6 (FCD100 glass)

Meade Series 6000...

Last post

Does anyone know of a 1.0 field flattener for the TS-Optics Doublet SD-Apo 80 mm f/7 besides the TSFlat25DEL?

As JayTee confirmed any flattener...
39 Replies

896 Views

Last post by chris_g
Wed Nov 09, 2022 2:01 pm
William Optics 10th Anniversary Zenithstar 80mm Fluorite

Last post by notFritzArgelander « Wed Nov 02, 2022 10:04 pm
Replies: 1
by hatflyer » Wed Nov 02, 2022 7:31 pm

First post

How is that scope for AP, versus 1 like the Orion ED80T CF Triplet ?

I believe fluorite is FPL-53.

Thanks.

Last post

Fluorite isn’t FPL-53. I think that there’s some confusion because FPL-53 is sometimes marketed as “synthetic fluorite”. You can get as good results...

1 Replies

110 Views

Last post by notFritzArgelander
Wed Nov 02, 2022 10:04 pm
Newbie Looking For Telescope

Last post by chris_g « Fri Oct 21, 2022 3:28 am
Replies: 15
by hatflyer » Fri Oct 14, 2022 5:00 pm

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I'm looking for a telescope to use with my DSLR for DSO, with a focal length >400mm, weighs 6 lbs or less, and costs <$600. Does such a telescope...

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I think I'm leaning towards the Astro-Tech AT72EDII. Not as heavy as the 80s. As for flatteners, what's the limit on how little a flattener reduces...

15 Replies

427 Views

Last post by chris_g
Fri Oct 21, 2022 3:28 am
A Celestron 150HD f/8 In The Classifieds

Last post by notFritzArgelander « Sat Sep 10, 2022 11:16 pm
Replies: 40
by JayTee » Thu Aug 25, 2022 8:30 pm
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I have the chance to pick up this refractor for an insanely low price.

I have two questions, does anyone have any experience looking through this...

Last post

Congratulations on this fabulous acquisition!
40 Replies

989 Views

Last post by notFritzArgelander
Sat Sep 10, 2022 11:16 pm
New telescope

Last post by Lady Fraktor « Sat Aug 27, 2022 5:20 am
Replies: 8
by Mirrorgirl » Fri Aug 26, 2022 2:16 pm

First post

Hi there

My new telescope and guide scope eventually came in so happy just waiting for reducer and rings and then it will be first light… it’s a...

Last post

A nice new refractor Rhoda, I hope you get a lot of use with it :)

8 Replies

337 Views

Last post by Lady Fraktor
Sat Aug 27, 2022 5:20 am
Svbony 48P

Last post by LDW47 « Sat Aug 20, 2022 3:45 pm

by LDW47 » Sat Aug 20, 2022 3:45 pm

I have been using a 90mm Svbony 48P, f5.5 with a 2 speed focuser, retractable dew shield, rings etc. on one of my Porta II 's for a while now, its a...

0 Replies

198 Views

Last post by LDW47
Sat Aug 20, 2022 3:45 pm
SVbony 80ED, thoughts?

Last post by Greenman « Thu Aug 18, 2022 8:55 am
Replies: 24
by Ylem » Thu Jan 13, 2022 1:21 pm
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Just wondering what the group thought about these

I would hate to make a $450 mistake, sure I could send it back within 30 days, but sometimes it...

Last post

They'll also give you up-to-date info on arrival dates and all that, although the logistics companies and customs sometimes throw them a curveball....
24 Replies

19228 Views

Last post by Greenman
Thu Aug 18, 2022 8:55 am
Do you recognise this vintage 80mm/910mm f/11,3 refractor?

Last post by LDW47 « Sun Aug 07, 2022 12:32 am
Replies: 27
by West83 » Wed Aug 12, 2020 11:02 pm
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Does anybody recognize this D=80mm F=910mm (f/11,3) refractor?

Apparently the manufacturer brand is no longer on the tube, but it's vintage (sort...

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I had the C102 HD the follow up to the C102, it was an excellent scope. Ed Ting had high praise for those post 1995 line of Celestron scopes. No...
27 Replies

14378 Views

Last post by LDW47
Sun Aug 07, 2022 12:32 am
New glass coming!

Last post by Ylem « Sun Jul 24, 2022 3:25 am
Replies: 26
by Ylem » Tue Jul 12, 2022 12:19 pm
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I always wanted the Orion 80ED, a basic but affordable unit. Sadly I kept putting it off, then they raised the price by 30% before discontinuing it....

Last post

Well the clouds burned off and was able to do a little white light solar.

Nice clear images of 3059, 65, 64, 62, 63.

It's going to take some time...
26 Replies

961 Views

Last post by Ylem
Sun Jul 24, 2022 3:25 am
Downpipe telescope

Last post by John Baars « Wed Jul 13, 2022 5:03 pm
Replies: 18
by DeanD » Wed Jul 06, 2022 6:54 am

First post

Hi All,

I have been fiddling with my 4 f18 scope, and I thought you might be interested in some images of it.

I picked up a brass achromatic...

Last post

Such a long focus refractor must have a very pleasant view. The pics are very impressive already. I am quite curious about your observations with it.

18 Replies

642 Views

Last post by John Baars
Wed Jul 13, 2022 5:03 pm
80mm f/15 Scopetech achromat

Last post by Jones « Wed May 11, 2022 2:28 pm
Replies: 15
by Jones » Wed Feb 23, 2022 5:20 am

First post

20220222_145706.jpg

Made in Japan, ordered from First Light Optics UK, delivered yesterday to Arizona in USA. What a trip. Maybe that was why all...

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The lens at f15 is great. Better than my old Tasco 76mm f16 by far. Better than any 80mm ed double. Maybe a -53 triple can compare but doubt it.

15 Replies

1490 Views

Last post by Jones
Wed May 11, 2022 2:28 pm
Daystar Filters SolaREDi 80MM Ha Solar Telescope (.5A)

Last post by notFritzArgelander « Sat Apr 23, 2022 4:40 pm
Replies: 12
by notFritzArgelander » Wed Apr 20, 2022 9:55 pm

First post

Has anyone used one of these? Having 2 80mm refractors, it may be silly to consider this, but....

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Well that is unfortunate.
If I come across any reasonable sales I will let you know.

Thanks but I might not follow up. This was a fleeting...

12 Replies

702 Views

Last post by notFritzArgelander
Sat Apr 23, 2022 4:40 pm

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Refractor type Telescopes

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