Discuss your refractor type scopes here.
Achromat Vs Semi-APO Vs APO - What's The Difference?
Replies: 22
by
JayTee »
Sat Aug 17, 2019 9:58 pm
First post
The notion for this article hit me this morning as I was perusing my email Astro-Ads .
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Although coming very late to the table, three fine courses already consumed and the wine bottles empty, I have found this thread a pleasure to...
22 Replies
11269 Views
Last post by John Donne
Tue Oct 06, 2020 3:09 pm
Does anyone wish to purchase a 150mm f/14?
Replies: 5
by
Lady Fraktor »
Mon Nov 30, 2020 6:57 pm
First post
This was pointed out to me by a friend but I do not think I would want to pay the shipping from america ;)
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Probably a wonderful scope, but I don't think it would work very well in my SkyShed POD or would be the right scope for my Bortle 6 back yard. :)
5 Replies
142 Views
Last post by MistrBadgr
Wed Dec 02, 2020 4:26 am
Blackening lens edges
Replies: 24
by
John Baars »
Wed Oct 28, 2020 1:21 pm
First post
Should lens edges be blackened or not? I know, this discussion is being conducted to the highest echelons of the very best brands.
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Hi John,
24 Replies
870 Views
Last post by MistrBadgr
Tue Dec 01, 2020 8:24 pm
This Guy Must Really Like His 6" F8 Scope To Shake
Replies: 12
by
Refractordude »
Sun Jun 21, 2020 12:24 am
First post
Please correct me if I am wrong. Right click the image.
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I'll bet the combo of that spindly tripod and that focuser really make for an interesting session.:)
12 Replies
754 Views
Last post by Lady Fraktor
Sun Nov 29, 2020 7:49 pm
Cheating with a Baader semi APO filter?
Replies: 5
by
Glenbo58 »
Mon Oct 12, 2020 9:22 am
First post
Looking for a semi apo doublet refractor.Visual for now but will grow into A/P with it eventually. My budget has me looking at a Lunt 102 Ed. It has...
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I own the Semi-APO filter from Baader. It is not all it’s cracked up to be. It’s knocks about 1/2 stop off of the brightness and doesn’t get rid of...
5 Replies
472 Views
Last post by JayTee
Sat Oct 24, 2020 12:01 am
1 Replies
275 Views
Last post by John Baars
Thu Oct 01, 2020 8:04 pm
120mm f/8.3 achromat adjust lens
Replies: 12
by
Jones »
Thu Aug 13, 2020 6:25 am
First post
Got the Orion version used locally. First look at the moon showed a yellow haze eveywhere. Have not had an achro in years, everyone talks about a...
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I normally use Aluminium foil (tin foil for some).
12 Replies
877 Views
Last post by Lady Fraktor
Wed Sep 23, 2020 6:20 pm
Historical 120x20 refractor
Replies: 2
by
DeanD »
Fri Sep 18, 2020 2:02 pm
First post
Hi all,
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Nice!
2 Replies
278 Views
Last post by notFritzArgelander
Fri Sep 18, 2020 6:18 pm
Altair Starwave 152 red tube
Replies: 6
by
Mack41 »
Sat May 16, 2020 9:46 am
First post
Took delivery of this a couple of days ago and not really had the weather to test it out properly.
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It looks fantastic: still waiting for a report though!
6 Replies
1032 Views
Last post by DeanD
Fri Sep 18, 2020 9:34 am
130mm Truss Tube Refractor
Replies: 21
by
Jones »
Tue Aug 04, 2020 5:37 pm
First post
Uses the 130mm f/7 -53 triple from TS Optics Germany.
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The limit of the M2 blockhead mount and column appears to be with the 120mm light weights f8.3 achromat 1000mm f.l. and f7.5 SWed 900mm f.l. They...
21 Replies
1987 Views
Last post by Jones
Sat Aug 29, 2020 5:26 am
Do you recognise this vintage 80mm/910mm f/11,3 refractor?
Replies: 17
by
West83 »
Wed Aug 12, 2020 11:02 pm
First post
Does anybody recognize this D=80mm F=910mm (f/11,3) refractor?
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If the finder is mounted on the focuser its a C80 made by Vixen Japan for Celestron in the late 80’s to mid 90’s ! If its in good shape grab it quick...
17 Replies
1480 Views
Last post by LDW47
Sun Aug 23, 2020 1:50 pm
Behold the Mark mk. II
Replies: 9
by
Kanadalainen »
Fri Aug 14, 2020 9:08 pm
First post
The scope is unchanged but I drilled the 76 mm rings that I had lying around, and tapped them for 1/4 x 20.
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Good for you Ian!
9 Replies
685 Views
Last post by Thefatkitty
Mon Aug 17, 2020 12:20 am
Comparing APO refractors: doublets vs triplets, makes & models, etc.
Replies: 16
by
Voyageur »
Sun Aug 09, 2020 3:47 pm
First post
My 8 Vixen VMC200L and Astro Tech AT80EDT complement each other very well. The Vixen gives great views of nebulae, globs, and open clusters. I...
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As you know I own a 120mm Evostar APO. And I had a 120mm f/8 achromat in my possession very shortly.
16 Replies
1283 Views
Last post by John Baars
Thu Aug 13, 2020 10:56 pm
A 150mm f/5 Achromat stopped down on Jupiter, just for fun.
Replies: 13
by
John Baars »
Wed Jun 24, 2020 8:34 pm
First post
Everybody knows it. A 150mm Achromat is a widefield telescope with terrible CA. Certainly not suited for observing Jupiter.
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This is a very good scope for a very good price! It could compliment nicely your 6 SCT. SCT would have an edge on Moon and planets, but 150ST would...
13 Replies
1123 Views
Last post by Bigzmey
Wed Aug 12, 2020 6:23 pm
Time to sell?
Replies: 10
by
pakarinen »
Tue Aug 11, 2020 4:58 pm
First post
When I got back into the hobby three years ago, I decided my old C8 and mount was too big and bulky for my current tastes and went with an Orion...
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Good points to ponder. Thanks, everybody.
10 Replies
529 Views
Last post by pakarinen
Wed Aug 12, 2020 12:50 pm
Refractor Photo Thread (everyone loves pictures)
Replies: 50
by
Rainmaker »
Tue Dec 10, 2019 12:34 am
First post
:observer: Here is a place to post some pictures of your refractors :observer:
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A unique refractor.
50 Replies
5636 Views
Last post by Lady Fraktor
Tue Aug 11, 2020 3:22 am
Mark I and the Big Gun
Replies: 5
by
Kanadalainen »
Tue Jul 14, 2020 2:47 pm
First post
Big Gun? Maybe not. :D :lol: But at 910mm focal length, my vintage C80 doublet is much more to wield for my HEQ5 mount, vs the 70mm triplet.
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Looking good!
5 Replies
718 Views
Last post by Bigzmey
Wed Jul 15, 2020 10:47 pm
the Teleskop Service 102mm ED f11
Replies: 35
by
notFritzArgelander »
Sun May 03, 2020 8:57 pm
First post
My plan as of 3 years ago was to have a pair of quality refractors that are ED doublets. I like to be able to DIY optical maintenance so triplets are...
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I heard from Gerd Neumann that the gratings are in the mail.
35 Replies
3080 Views
Last post by notFritzArgelander
Wed Jul 15, 2020 12:09 am
First light for the Mark I - Tasco
Replies: 9
by
Kanadalainen »
Thu Jul 09, 2020 3:21 pm
First post
Scope test: 60 mm Tasco doublet, 80's Celestron star diagonal, 80's Meade super plossl EP 40 mm
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As promised M8 and M20 - can also be found in the AP section - a busier place.
9 Replies
660 Views
Last post by Kanadalainen
Fri Jul 10, 2020 1:27 pm
I Now Own A 6" Aperture Refractor
Replies: 12
by
Refractordude »
Tue Jun 30, 2020 4:31 am
First post
It is a Celestron 6 f8 known as the yard canon. I was actually surprised that it is not that big nor heavy. I have it mounted on a Orion Skyview Pro...
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That's a big boy!
12 Replies
1082 Views
Last post by Refractordude
Thu Jul 02, 2020 2:04 am
Question For 6" Achromatic Owners
Replies: 5
by
Refractordude »
Thu Jun 18, 2020 5:15 pm
First post
What 6 achromatic telescope do you own? How do you bring out the colors when observing globular clusters at high magnification? My thinking is that...
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In my 6 achro I have not seen colors in globular clusters. I have noticed spectacular differences in color with open clusters, e.g., Beehive, M52,...
5 Replies
535 Views
Last post by notFritzArgelander
Fri Jun 26, 2020 6:12 pm
Thanks Mark!
Replies: 8
by
Kanadalainen »
Fri Jun 26, 2020 2:22 am
First post
Today I recieved a reworked Tasco 55 VTE from Mark. It arrived safe and sound.
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Very interesting scope. Nice transaction guys.
8 Replies
375 Views
Last post by helicon
Fri Jun 26, 2020 2:06 pm
APM 107 ..I can dream, right?
Replies: 9
by
Kanadalainen »
Tue May 28, 2019 4:55 pm
First post
Has anyone ever peeked through one of these? They appear to be very nice indeed.
Last post
i was going to ask how many arms and legs, then i've seen the price at the bottom.i guess more then i thought, the whole 9 yards :Lol:
9 Replies
1535 Views
Last post by yobbo89
Wed Jun 24, 2020 1:32 pm
Globular Clusters And Telescopes?
Replies: 9
by
Refractordude »
Fri Jun 05, 2020 10:24 pm
First post
What is the best telescope for globular clusters? Thanks to you all.
Last post
However one of the most stunning visual astronomy experiences I had was with a 1 meter RC at 600x.
9 Replies
706 Views
Last post by notFritzArgelander
Sat Jun 06, 2020 11:09 pm
Small aperture, long focal length refractors
Replies: 8
by
Lady Fraktor »
Sun May 17, 2020 7:15 pm
First post
I posted this at AF.net a couple of years ago and thought it would be good to bring over here.
Last post
Hi Gabrielle,
8 Replies
767 Views
Last post by terrynak
Sun May 24, 2020 8:46 pm
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