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The Milky Way in Cepheus
The Milky Way in Cepheus by mcdadski
Ritchey-Chrétien
andrea tasselliChristopher GomezGregsAstrobinGustav LundbyNiraj
Specialized reflector design with hyperbolic mirrors for wide fields.
Showing 1-50 of 77
Topics ParticipantsRepliesViewsCreated
Christopher Gomez
Secondary and spider vein reflections appearing in my telescope images
Ritchey-ChrétienCalibrationOptics +2
Christopher Gomez
Last post: andrea tasselli
andrea tasselli
393
17 days ago
Bo Chen
Ritchey Chretien, 8” or 10”?
Losmandy G11EquipmentRitchey-Chrétien +1
Bo Chen
Last post: Olivier Constans
Olivier Constans
Jupitero
patrice_so
Jeff Bennett
Tobiasz
19747
Jun 18, 2025
Stellar Nomads
TSRCRED-G2 spacing with your RC
EquipmentReducerRitchey-Chrétien
Stellar Nomads
Last post: Stellar Nomads
Olivier Constans
255
Jun 1, 2025
Brian Boyle
Antlia LRGB filters & GSO RC off-axis ghosting problem.
EquipmentRitchey-ChrétienFilters
Brian Boyle
086
May 25, 2025
Daniel Petzen
Experience with the GSO 14"?
GSO 14" f/8 Ritchey-Chretien Truss TubeSky-Watcher EQ8-RHRitchey-Chrétien +2
Daniel Petzen
Last post: Yuexiao Shen
Yuexiao Shen
Christopher Gomez
AstroNikko
Pedro Goles
7360
Mar 19, 2025
Keith Geissler
ZWO CAA for the 6" Carbonstar
Apertura 6" f/9 Ritchey-ChretienRotatorRitchey-Chrétien
Keith Geissler
Last post: Keith Geissler
Elmiko
Shawn Thiessen
Tony Gondola
John Bozeman
6286
Feb 19, 2025
maxbaro
[RCC] My First Imaging Attempt with GSO RC 8” Carbon
Ritchey-ChrétienReducerRequest for feedback +1
maxbaro
Last post: Joseph Biscoe IV
Joseph Biscoe IV
William
Rodrigo Roesch
Tony Gondola
6428
Jan 30, 2025
Rodrigo Roesch
Bad collimation or defect on Apertura 8" RC
Apertura 8" f/8 Ritchey-Chretien Carbon FiberRitchey-ChrétienCollimation
Rodrigo Roesch
Last post: Niraj
Niraj
Bill McLaughlin
jmdl101
Monty Chandler
Olivier Constans
652.4k
Jan 23, 2025
Götz Golla
A (somewhat) new way to focus with tilt
Ritchey-ChrétienAcquisitionDeep Sky +1
Götz Golla
0114
Dec 27, 2024
Dave Ek
First Light for Apertura Carbonstar 6" RC
Apertura 6" f/9 Ritchey-ChretienRitchey-ChrétienReview
Dave Ek
Last post: Olivier Constans
Olivier Constans
Ferenc Szabo
Aris Pope
maxbaro
Niraj
251.4k
Nov 2, 2024
Javier Figueroa
Recommendation
AG Optical iDK 10 inch F6.7Ritchey-ChrétienBuying Advice
Javier Figueroa
Last post: Javier Figueroa
Daniel Carter
Bill McLaughlin
psparkman
Ani Shastry
12360
Oct 5, 2024
Tobiasz
Unusual star spikes/flares on 10" RC
GSO 10" f/8 Ritchey-ChretienRitchey-ChrétienArtifacts
Tobiasz
Last post: Tobiasz
Tony Gondola
Scott Badger
andrea tasselli
8273
Sep 28, 2024
Tim Ray
RC10 Backfocus has moved since mirror cleaning and collimation
EquipmentRitchey-ChrétienCollimation
Tim Ray
Last post: Tim Ray
andrea tasselli
5187
Sep 14, 2024
Olivier Constans
Hello from France
Ritchey-ChrétienIntroductions
Olivier Constans
Last post: Jerry Yesavage
Jerry Yesavage
Damien Galanaud
THIBAUD Lucas
Maxim
Tony Gondola
13245
Sep 5, 2024
Jérémie
RC8 Collimation using Innovations Foresight SkyWave
EquipmentRitchey-ChrétienCollimation
Jérémie
Last post: Gaston Baudat
Gaston Baudat
Monty Chandler
Brian Valente
Dark Matters Astrophotography
Daniel Carter
18820
Aug 26, 2024
Daniel Beaulieu
Pegasus Astro Falcon Rotator V2
Pegasus Astro Falcon RotatorRitchey-ChrétienRotator
Daniel Beaulieu
Last post: Norman Tajudin
Norman Tajudin
Papa Brummbär
Andrew Burwell
Logan Carpenter
6341
Jul 25, 2024
Götz Golla
Secondary mirror tilted in its holder
GSO 10" f/8 Ritchey-ChretienRitchey-ChrétienCollimation +2
Götz Golla
0128
Jun 24, 2024
David Ridge
QHY183C, Long Focal Length, Plate Solving
QHY Users Group QHYCCD QHY183CRitchey-ChrétienCMOS +2
David Ridge
Last post: David Ridge
157
Jun 6, 2024
Average_Astrophotographer
Starizona Apex ED with Ritchey-Chrétien
Starizona Apex ED 0.65x L (ApexED-L)EquipmentRitchey-Chrétien
Average_Astrophotographer
Last post: maxbaro
maxbaro
David Huff
Rodrigo Roesch
Byron Miller
Anthony Fuller
11517
May 29, 2024
Götz Golla
GSO 10" RC baffling and flats
GSO 10" f/8 Ritchey-ChretienRitchey-ChrétienCalibration
Götz Golla
Last post: wizzlebippi
wizzlebippi
David Russell
Freddy Meiresonne
Miguel
Rafał Szwejkowski
21946
May 25, 2024
DavesView
RedCat51 and Undersampling
William Optics Redcat / Cat 51 III WIFDZWO ASI2600MC ProZWO ASI294MC Pro +2
DavesView
Last post: Bill McLaughlin
Bill McLaughlin
Wei-Hao Wang
Byron Miller
dkamen
light2lifeastro
30617
May 24, 2024
Alien_Enthusiast
Lunar Imaging with Ritchey–Chrétien
BarlowRitchey-ChrétienAcquisition +2
Alien_Enthusiast
Last post: Alien_Enthusiast
Georges
2194
May 18, 2024
Götz Golla
Focal length of GSO 10" RC
GSO 10" f/8 Ritchey-ChretienRitchey-ChrétienFocuser +2
Götz Golla
Last post: Götz Golla
wizzlebippi
KTAZ
John Hayes
Tobiasz
Matthew Proulx
22922
May 12, 2024
Habib Sekha
Aluminum Shroud for the CDK's (new product?)
Planewave CDK14Ritchey-ChrétienEquipment
Habib Sekha
Last post: Ruediger
Ruediger
Randy Pfeiffer
Dale Penkala
James Sokolowski
Franco Rodriguez
16432
May 3, 2024
Francois Theriault
Binning in astrophotography
Ritchey-ChrétienAcquisitionBinning +1
Francois Theriault
Last post: Freestar8n
Freestar8n
DaveDE
John Hayes
IrishAstro4484
Jon Rista
261.2k
Apr 23, 2024
Marc Monarcha
Which 8 inch Ritchey Chretien?
EquipmentRitchey-ChrétienGalaxy
Marc Monarcha
Last post: Derek Vasselin
Derek Vasselin
Andrew Ford
John Stone
Reg Pratt
Johannes Maximilian Möslein
5608
Mar 25, 2024
Jerry Gerber
OCAL3.0 (or 3.0 Max) and RC Telescopes
OCAL Electronic CollimatorRitchey-ChrétienCollimation
Jerry GerberFrequent contributor
Last post: Remco
Remco
David Huff
Tobiasz
Álvaro Méndez
7361
Mar 20, 2024
Jerry Gerber
Attaching ZWO Filter Holder & ASI2600MC to an RC 8" Focuser
TS-Optics 200mm/8" Ritchey-Chrétien Pro RC (carbon tube)Ritchey-ChrétienFocuser
Jerry GerberFrequent contributor
Last post: Brian Boyle
Brian Boyle
Tim Ray
Johannes Maximilian Möslein
12234
Mar 19, 2024
Brian Boyle
RC12 images show cureved banding
Ritchey Chretien telescopes GSO Family Ritchey-ChrétienNGC2736Nebula +2
Brian Boyle
Last post: Craig
Craig
Matthew Proulx
Mario Wunderlich
meteoritehunterjim
8158
Feb 12, 2024
Tarun Pulikanti
RC6 on a CEM26 Thoughts !!!!!!
iOptron CEM26Ritchey-ChrétienEquatorial Mount
Tarun Pulikanti
Last post: Rosiesch
Rosiesch
paperboy
dkamen
Rafael Amarins
Alan Hancox
19650
Jan 16, 2024
Igor Korenika
RC8 vs RC12 acquisition times
EquipmentRitchey-ChrétienBuying Advice
Igor Korenika
Last post: Dave Rust
Dave Rust
Brian Boyle
John Hayes
Jan Svagr
Tim Ray
15596
Jan 14, 2024
Jerry Gerber
8" Carbon Fiber RC Telescope
EquipmentRitchey-ChrétienBuying Advice +1
Jerry GerberFrequent contributor
Last post: Jerry Gerber
Björn Arnold
Ron
David Néel
SemiPro
11506
Nov 12, 2023
Flemming Kristensen
Washing the primary mirror of an 8" RC
Ritchey Chretien telescopes GSO Family Ritchey-ChrétienCleaningCollimation
Flemming Kristensen
Last post: Carles Zerbst
Carles Zerbst
1104
Oct 5, 2023
Sean Mc
What unicorn scope?
EquipmentRitchey-ChrétienBuying Advice
Sean Mc
Last post: V
V
Ian McIntyre
Matthew Proulx
David Huff
Francois Theriault
591.7k
Sep 26, 2023
Alan Hancox
Keep RC 8 or sell and purchase a Skywatcher Quattro??
Sky-Watcher EQ6-R ProEquipmentRitchey-Chrétien +1
Alan Hancox
Last post: Tommy Lease
Tommy Lease
Marius Bednar
SemiPro
MarcoPalaferri
Christian Großmann
14750
Sep 15, 2023
Ben Koltenbah
Best Practices Using Tri-Bahtinov Mask for Ritchey-Chretien Collimation?
EquipmentRitchey-ChrétienCollimation +1
Ben Koltenbah
Last post: John Hayes
John Hayes
Francis Moreau
Ashraf AbuSara
DanJunge
Come Raczy
131.2k
Aug 17, 2023
Brian Boyle
GSO RC8 v GSO RC10
Ritchey Chretien telescopes GSO Family Sky-Watcher EQ6-R ProRitchey-ChrétienBuying Advice
Brian Boyle
Last post: Pistachio_Enjoyer
Pistachio_Enjoyer
Matthew Proulx
Rafał Szwejkowski
Rod Kennedy
Daniel Pascucci
21546
Jul 25, 2023
Sean van Drogen
image train sanity check.
ZWO ASI183MMEquipmentRitchey-Chrétien +1
Sean van Drogen
Last post: Joe Linington
Joe Linington
Björn Arnold
9388
Jun 20, 2023
IS_17m
Collimation screws for the primary mirror - RC scope
EquipmentRitchey-ChrétienCollimation
IS_17m
Last post: Isabela Chase
Isabela Chase
Markus Gorski
vercastro
Ed Dixon
Chris Jensen
5523
Apr 1, 2023
Soothsayerman
Brand new Ritchey Chretien Optical Systems scope
EquipmentRitchey-Chrétien
Soothsayerman
0247
Dec 7, 2022
urban.astronomer
Why is vignetting so different between RGB and Narrowband filters?
Ritchey-ChrétienReducerProcessing +2
urban.astronomer
Last post: Rob Johnson
Rob Johnson
Steve Cooper
andrea tasselli
Arun H
Andy Wray
11769
Aug 15, 2022
Blaine Gibby
Please help a proud owner of a new 6" RC refractor
EquipmentRitchey-Chrétien
Blaine Gibby
Last post: Michele Rainville
Michele Rainville
Paul MacAree
SemiPro
Ben Loftin
Earle Waghorne
13798
Jun 29, 2022
Markus Gorski
Ritchey Chretien mirror spacing adjustment
EquipmentRitchey-ChrétienCollimation +1
Markus Gorski
Last post: cdavmd
cdavmd
3391
Jun 25, 2022
SemiPro
RC8/RASA8 or EdgeHD8 + Hyperstar?
Celestron EdgeHD 8"Celestron RASA 8"Equipment +1
SemiProIOTD Staff
Last post: SemiPro
V
drblevy13
Tareq Abdulla
Matthew Proulx
Lynn K
171.4k
Jun 14, 2022
Marc
Galaxy Rig - advantage of a C11 over a 10 or 12" RC?
Celestron EdgeHD 11"EquipmentRitchey-Chrétien +1
Marc
Last post: rhedden
rhedden
Björn Arnold
andrea tasselli
4435
Apr 20, 2022
Doversole83
OCAL Collimator
Ritchey Chretien telescopes GSO Family Ritchey-ChrétienEquipmentCollimation
Doversole83
Last post: GregsAstrobin
GregsAstrobin
Gustav Lundby
severinbb
SemiPro
hughsie
7443
Mar 30, 2022
Andrea Alessandrelli
RC6, R8, R10 Baffle Extension model, ready to be 3D printed.
EquipmentRitchey-Chrétien3D Printing
Andrea Alessandrelli
Last post: Francesco di Biase
Francesco di Biase
Rod Kennedy
Tareq Abdulla
Michele Campini
Michael Timm
141.3k
Mar 23, 2022
Sean van Drogen
Ritchey Chretien 10" and Dew
EquipmentRitchey-ChrétienDew Heater
Sean van Drogen
Last post: andrea tasselli
andrea tasselli
Ernst Glas
Scotty Bishop
Björn Arnold
7293
Feb 15, 2022
Detlef Scholz
Please help – first light disaster
Ritchey-ChrétienAcquisitionDeep Sky +1
Detlef Scholz
Last post: Detlef Scholz
Mohammad Nouroozi
andrea tasselli
6418
Feb 11, 2022
Janez Skubic
RC product design deficiency
EquipmentRitchey-Chrétien
Janez Skubic
Last post: Giovanni Paglioli
Giovanni Paglioli
Scotty Bishop
Björn Arnold
David Goldstein
Greg Harp
131.3k
Jan 23, 2022
Showing 1-50 of 77