Welcome Center

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No New Posts Welcome Center

Mission Statement and introductions.

10 86 Why not post?
by jamesling1000
Jul 2, 2020 0:16:17 GMT -5
No New Posts Introduce yourself

66 423 a germany refractor fan>my dream 8 inch
by maho68
May 14, 2022 20:51:58 GMT -5
No New Posts Ask ISTAR - 1 Viewing

Have a question for ISTAR? Ask it here, and it will get the owners attention.

92 697 R35 optics?
by dkahraman
Nov 29, 2021 15:54:22 GMT -5
No New Posts General discussion

Discuss anything that doesn't fit in the specialized forums. General conversation about anything astronomical or otherwise.

189 1,279 6''-7'' Semi APO
by bing
May 5, 2022 23:36:14 GMT -5
No New Posts Eyepieces

A place to discuss eyepieces. Old favorites and new finds.

7 69 GSO 30mm SV vrs TV 27mm pan.
by astrorl
May 1, 2017 18:23:52 GMT -5
No New Posts Bino-Viewers

Cyclops lives.... but is there more to see?

2 10 Supercharge WO's or buy new bigger CA bino's?
by boomboom
Sept 24, 2014 2:06:47 GMT -5
No New Posts Astrophotography

Talk about imaging

5 20 Video of my 2015 Solar images refractor 228mm spécial Halpha
by nobody
Dec 18, 2015 8:54:41 GMT -5
No New Posts Solar Forum

Equipment and methods for observing our day star are discussed here.

15 83 140mm F10 SUPER SOLAR DOUBLET Optimized for H, Ha, K, S !!!
by Ales - iStar Optical
Jul 16, 2016 17:02:43 GMT -5

Achromatic Doublets

Board Threads Posts Last Post
No New Posts Achromats

Discussion of all of the ISTAR Classic Achromatic lenses and scopes

80 965 Chromacorr
by georgeionas
Aug 27, 2023 22:20:30 GMT -5
No New Posts Anastigmats

Unique lenses that are only being made by ISTAR, Reduced false color and a smaller spot size which rate a board of their own.

58 514 Lunar Images ( June 5-7-9 th) with H-Alpha 228mm OTA
by dkahraman
Dec 1, 2021 7:31:40 GMT -5

Apochromatic Triplets & Doublets

Board Threads Posts Last Post
No New Posts APOs and Super APOs

Discussion of all ISTAR APO and Super APO lenses and scopes, including Fluorite variations.

34 271 Phantom CFL 170-7 APOTriplet OTA
by Ales - iStar Optical
Aug 14, 2023 18:58:18 GMT -5

Reflectors

Board Threads Posts Last Post
No New Posts Cassagrains

If a refractor isn't your only scope you might want to talk about these!

2 9 New Feather touch .
by Mike
May 19, 2014 9:28:42 GMT -5
No New Posts Newtonians (including Dobsonians)

Talk about your reflective light buckets here.

3 15 PiKon telescope
by borispider
Sept 19, 2014 8:55:04 GMT -5

ATM (Amateur Telescope Making)

Board Threads Posts Last Post
No New Posts ISTAR ATM

A place to show off your home built ISTAR. Discussion of methods, materials, tools, and ideas for making your own custom built refractor.

49 609 iStar 180 F/8 R30 build from Oz
by GrahamP
Jun 3, 2021 6:10:27 GMT -5
No New Posts Non ISTAR ATM

Have a non ISTAR refractor project that you're proud of? If you show it off here, it will help ISTAR builders too!

11 106 The Best Mount for Large GEM's
by Ales - iStar Optical
Apr 11, 2021 15:31:24 GMT -5

CURRENTLY IN STOCK AT ISTAR

Board Threads Posts Last Post
No New Posts Currently in stock at ISTAR

List of in stock scopes at ISTAR.

Moderator: Administrator

12 15 SALE OF REMAINING OTA'S IN STOCK
by Ales - iStar Optical
May 1, 2018 18:03:15 GMT -5

Photo Galleries

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No New Posts Member Galleries

Open for posting.

34 169 Picture With super apo Istar 140/900mm
by Ales - iStar Optical
Aug 14, 2023 19:03:17 GMT -5

Archive

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Last Updated: Chromacorr by georgeionas (Aug 27, 2023 22:20:30 GMT -5)
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