View allAll Photos Tagged Calibration
Airline: Flight Calibration Services (FCS)
Aircraft: Diamond Aircraft Diamond DA-62
Registration: G-DVOR CN: 62.040
Acquisition, Calibration- Mike Selby
Post-processing- Warren Keller
Telescope- RiDK 700
Camera- FLI PL16803
Location- Obstech, El Sauce, Chile
Addt'l luminance detail by SSRO-
RCOS 16", Apogee U9, PlaneWave Ascension 200HR, ACP, MaxIm DL, FocusMax, PixInsight 1.8, Photoshop CC
Object description at www.billionsandbillions.com
Constelación en que se encuentra: Perseus
Distancia: 1.000 años luz
De SkySafari:
#NGC1333 es una nebulosa de reflexion, que es parte del complejo de nubes de Perseo y es un área de formación de estrellas.
Aparece cerca de las nebulosas oscuras Barnard 1 y 2. Brilla en tonos azulosos. Alberga cientos de estrellas formadas recientemente, en el último millón de años. Muchas de esas estrellas generan importantes vientos estelares. Se estima que es un ambiente similar al de la formacion del sol hace 4.500 millones de años.
Datos de la imagen:
Exposure: 6hr 30min (180 x 3min)
Telescope: #Celestron #EdgeHD #C925 #Hyperstar
Camera: ZWO #ASI2600MC Pro
Focal ratio: f2.3
Capturing software: NINA
Filter: IDAS #NBZ
Mount: #iOptron #CEM60
Guiding: #ASI462MC with #PHD2 and Stellarvue F60M3
Dithering: Yes
Calibration: 30 darks, 30 flat darks, 50 flats
Processing: #PixInsight
Date: 25-nov-2024, 30-nov-2024
Location: #Bogotá, #Colombia
Acquisition, Calibration- Mike Selby
Post-processing- Warren Keller
Telescope- RiDK 700
Camera- FLI PL16803
Location- Obstech, El Sauce, Chile
Addt'l luminance detail by SSRO-
RCOS 16", Apogee U9, PlaneWave Ascension 200HR, ACP, MaxIm DL, FocusMax, PixInsight 1.8, Photoshop CC
Object description at www.billionsandbillions.com
Flight Calibration Services
Diamond DA62
Outbound to Aberdeen Airport, Scotland
Glasgow Prestwick Airport
EGPK
Scotland
01/09/2020
Interesting transit through Shannon yesterday afternoon was Beech MC-12S-1 Huron 12-00277 go the US Army Flight Calibration unit in from St.Johns and out to Wiesbaden.
© István Pénzes.
Please NOTE and RESPECT the copyright.
21st July 2018
Leica M-P Typ 240
Leica APO-MACRO Elmarit 100/2.8
Leica EVF-2
Leica R-Adapter M
Photo from the Stephan Barth collection, scan kindly provided by him for inclusion on this page.
München-Riem
ca. mid-1980s
D-AFSH
Hawker Siddeley HS-748 Srs2/244
1725
Bundesanstalt für Flugsicherung (BFS, West German Flight Inspection)
BFS calibration aircraft parked in Riem’s Westpilz parking area.
BFS operated seven HS-748 (D-AFSD, D-AFSE, D-AFSF, D-AFSG, D-AFSH, D-AFSI, D-AFSJ). D-AFSH was delivered to BFS in December 1975 and flew on for them until 1995. It went on to West Air Sweden as SE-LEK in February 1996 and to Air Creebec Cargo as C-FPJR in May 2007. (Sources: jabog32.de, planelogger.com)
Active at least until September 2019, possibly even today (March 2021).
Information on the Gemeinsame Flugvermessungsstelle GFMS at Lechfeld Air Base where this aircraft served can be found under jabog32.de/yaja/gfms.html.
Registration details for this airframe:
www.planelogger.com/Aircraft/Registration/D-AFSH/947124
D-AFSH with BFS at DUS in May 1993 (later colours):
www.flickr.com/photos/53277566@N06/45926480794
This airframe as SE-LEK with West Air Sweden at HEL in July 2005:
www.flickr.com/photos/145798423@N07/49217251571
This airframe as C-FPJR with Air Creebec Cargo at Timmins Victor M. Power Airport YTS, Ontario, in June 2016:
www.flickr.com/photos/73683441@N07/27511876086
Scan from Kodachrome slide.
Messier 31 with Zenithstar 61ii and DSLR No Calibration Frames
This was one of those rare, beautiful nights when I wanted to just admire the heavens ... to do something less stressful ... something more simple ... with a very small telescope and a cheap DSLR. This William Optics Zenithstar 61ii was mounted on an iOptron CEM25P with guiding using a very small ZWO 30mm fl 120mm guidescope and PHD2 guiding software. No darks or other calibration frames were taken. Just the 10 exposures at 240 seconds each. ISO was set to 800. The site was a Bortle 4 and the temperature was 15 C (59 F). The Canon T7i DSLR sensor temperature was 21 C (70 F). I was curious how low the outside temperature had to be to use an uncooled, stock DSLR without worrying about background noise. I'm pleased with the results.
Capturing the exposures was done with APT. Processing was done with Pixinsight. Polar Alignment for the evening used SharpCap Pro. If you look closely at the NGC 206 star cluster contained in the Andromeda galaxy, you can see individual blue giant stars ... individual stars in another galaxy ... with a 61mm telescope. The technology available today is amazing.
Acquisition, Calibration- Mike Selby
Post-processing- Warren Keller
Telescope- RiDK 700 and RiDK 500
Mounts- Officina Stellare Polar Fork Mount/Planewave L600
Camera- FLI PL16803
Filters: Chroma LRGB 2" · Astrodon LRGB
Software: StarKeeper.it Voyager
Location- Obstech, El Sauce, Chile
PixInsight 1.8.8-8, Photoshop 2021
Object description at www.billionsandbillions.com
SOUL MIRROR CALIBRATION / FINAL / CHRISTELLE GEISER & AEON VON ZARK / NAKED EYE PROJECT BIENNE / ALTERED STATE SERIE / THE WEIRD DREAM .
New monitor and trying to calibrate - what a nightmare! Same tool, monitors side by side and it looks different...any comments about how it looks for others greatly appreciated please!
Acquisition, Calibration- Mike Selby
Post-processing- Warren Keller
Telescope- PlaneWave CDK1000, OS RiDK 700
Mounts- Planewave
Camera- FLI PL16803
Filters: Chroma LRGB 2"
Software: StarKeeper.it Voyager
Location- Obstech, El Sauce, Chile
PixInsight 1.8.8-8, Photoshop 2022
Object description at www.billionsandbillions.com
1.2hrs of stacked photo's.
Stock DSLR, Sigma Lens and star adventurer tracker.
Calibration shots:
175 Lights
75 Darks
80 Flats
100 Bias
Salt flats are ideal for calibrating the distance measurement equipment of satellites because they are large, stable surfaces with strong reflection, similar to that of ice sheets. As the largest salt flat on Earth, Salar de Uyuni is especially suitable for this purpose. In the low-rain period from April to November, due to the absence of industry and its high elevation, the skies above Salar de Uyuni are very clear, and the air is dry (relative humidity is about 30%; rainfall is roughly 1 millimetre or 0.039 inches per month). It has a stable surface, smoothed by seasonal flooding — water dissolves the salt surface and thus keeps it leveled.[citation needed]
As a result, the variation in the surface elevation over the 10,582-square-kilometer (4,086 sq mi) area of Salar de Uyuni is less than 1 meter (3 ft 3 in) normal to the Earth's circumference, and there are few square kilometers on Earth that are as flat. The surface reflectivity (albedo) for ultraviolet light is relatively high at 0.69 and shows variations of only a few percent during the daytime. The combination of all these features makes Salar de Uyuni about five times better for satellite calibration than the surface of an ocean. Using Salar de Uyuni as the target, ICESat has already achieved the short-term elevation measurement accuracy of below 2 centimeters (0.79 in).
With the use of modern GPS technology, it can now be proven that the Salar de Uyuni is not perfectly flat. New measurements revealed previously missed features resembling ridges, hills, and valleys only millimeters in height. They originate from the variation in material density, and thus the gravitational force, beneath the Salar's sediments. Just as the ocean surface rises over denser seamounts, the salt flat surface also rises and falls to reflect the subsurface density variations.
Royal Navy BAe Sea Harrier FA.2 seen on approach to A&AEE Boscombe Down in late September 1985
Sporting Black & White optical calibration marks she was there as part of the stores and weapons delivery testing regime for the then new improved version of the original FRS.1 'SHAR'
Scanned Kodak 35mm Transparency
Bortle 9 😱 No Filter 😱 No Calibration Frames 😱 One single night 😱
All info: www.galactic-hunter.com/post/__m94
This is Messier 94, the Cat’s Eye Galaxy 🐈⬛ Meow 🐈
Well, this was interesting. We NEVER image in broadband from our Vegas backyard, we always thought there was no point because of how polluted the sky is. We had an unexpected clear night and were starving for some deep-sky object, so we set up our telescope in the backyard without really knowing what to shoot. We decided to do something we never attempted before, imaging in broadband from home. We picked a galaxy at random, M94, and decided to make this challenge a little crazier and so used no light pollution filter and did not bother with calibration frames.
Well, I have to say the result is much, much better that was I anticipated. Processing was of course a huge pain, but I really did not expect to have a “great” image in the end. This is just a little over 7 hours of total exposure. The QHY600C is an absolute beast and thankfully the noise was manageable to the point where the image looks really clean overall after several noise reduction processes in PixInsight.
Now I really want to image this object from the desert… or keep going at it from home for many nights 😅
We made a video about imaging this object which you can watch here: www.youtube.com/watch?v=HhkboxnW_wE&ab_channel=Galact...
. For more images, please follow galactic hunter on Instagram :)
Other images: www.galactic-hunter.com/gallery
This man was calibration his paint with a phone app. I had challenged myself to shoot only in monochrome that day, but in hindsight I might have chosen differently for this photo, as his paintings had rather nice colours.
The top left painting captures the essence of the main shopping street in Münster, with the arches, the hanging plants and the bicycles. As you can see here: www.flickr.com/photos/bigfarmer/48416655917
Made me wonder how all the famous painters, like Rembrandt, Monet and Turner, started out on their careers.
OLYMPUS DIGITAL CAMERA
Olympus OM-D E-M10 MKII, M.Zuiko 14-42mm f3.5-5.6 EZ
Acquisition, Calibration- Mike Selby
Post-processing- Warren Keller
Telescope- PlaneWave CDK1000, OS RiDK 700
Mounts- Planewave
Camera- FLI PL16803
Filters: Chroma LRGB 2"
Software: StarKeeper.it Voyager
Location- Obstech, El Sauce, Chile
PixInsight 1.8.9, Photoshop 2022
Object description at www.billionsandbillions.com
A Cluster of Pearls in the Southern Skies ( NGC 3766 " The Pearl Cluster" ) by Mike O'Day ( 500px.com/MikeODay )
Shimmering like a pearl to the naked eye, this open cluster of mostly young blue stars ( known as the "Pearl Cluster" ) is approximately 5500 light years from Earth and was discovered by Abbe Lacaille in 1752 from South Africa.
This HDR "true colour" image is constructed from 11 sets of exposures ranging from 1/4 sec ( to capture the centre of the brighter stars ) through to 240 seconds ( for the fainter stars of the Milky Way ). Total exposure time was around 5 hours.
12 April 2018
Image details:
Field of view ..... 58' 49.8" x 39' 36.4"
Image center ...... RA: 11 36 03.890 Dec: -61 35 30.17
Resolution ........ 0.586 arcsec/px ( full size image )
Orientation: North is up
Telescope: Orion Optics CT12 Newtonian ( mirror 300mm, fl 1200mm, f4 ).
Corrector: ASA 2" Coma Corrector Quattro 1.175x.
Effective Focal Length / Aperture : 1470mm f4.7
Mount: Skywatcher EQ8
Guiding: TSOAG9 Off-Axis-Guider, Starlight Xpress Lodestar X2, PHD2
Camera:
Nikon D5300 (unmodified) (sensor 23.5 x 15.6mm, 6016x4016 3.91um pixels)
Location:
Blue Mountains, Australia
Moderate light pollution ( pale green zone on darksitefinder.com map )
Capture ( 12 April 2018 ):
11 sets of sub-images with exposure duration for each set doubling ( 1/4s to 240s ) all at ISO250.
( 70 x 240sec + 10 each forthe other durations )
Processing:
Calibration: master bias, master flat and master dark
Integration in 11 sets
HDR combination
Pixinsight April 2018
Links:
Acquisition, Calibration- Mike Selby
Post-processing- Warren Keller
Telescope- PlaneWave CDK1000, OS RiDK 700
Mounts- Planewave
Camera- FLI PL16803
Filters: Chroma LRGB 2"
Software: StarKeeper.it Voyager
Location- Obstech, El Sauce, Chile
PixInsight 1.8.8-8, Photoshop 2022
Object description at www.billionsandbillions.com
Acquisition, Calibration- Mike Selby
Post-processing- Warren Keller
Telescope- PlaneWave CDK1000, OS RiDK 700
Mounts- Planewave
Camera- FLI PL16803
Filters: Chroma LRGB 2"
Software: StarKeeper.it Voyager
Location- Obstech, El Sauce, Chile
PixInsight 1.8.9, Photoshop 2022
Object description at www.billionsandbillions.com
Acquisition, Calibration- Mike Selby
Post-processing- Warren Keller
Telescope- PlaneWave CDK1000, OS RiDK 700
Mounts- Planewave
Camera- FLI PL16803
Filters: Chroma LRGB 2"
Software: StarKeeper.it Voyager
Location- Obstech, El Sauce, Chile
PixInsight 1.8.9, Photoshop 2022
Object description at www.billionsandbillions.com
Acquisition, Calibration- Mike Selby
Post-processing- Warren Keller
Telescope- PlaneWave CDK1000, OS RiDK 700
Mounts- Planewave
Camera- FLI PL16803
Filters: Chroma LRGB 2" · Astrodon LRGB
Software: StarKeeper.it Voyager
Location- Obstech, El Sauce, Chile
PixInsight 1.8.8-8, Photoshop 2021
Object description at www.billionsandbillions.com
Acquisition, Calibration- Mike Selby
Post-processing- Warren Keller
Telescope- RiDK 700
Camera- FLI PL16803
Location- Obstech, El Sauce, Chile
PixInsight 1.8, Photoshop CC
Object description at www.billionsandbillions.com
Description: I developed this image of the North American Nebula NGC 700 from 60x300s subs or 5.0 hours of total exposure time. I used the Optolong L-eXtreme Dual Bandpass Light Pollution Filter. It has two 7nm pass bands centered on the H-alpha and OIII wavelengths. With a one-shot color (OSC) camera and an L-eXtreme filter combination the red signal from the H-alpha tends to dominate. In the nonlinear postprocessing phase I applied Histogram Transformation, Local Histogram Equalization and Curves Transformation in small doses in multiple passes.
Date / Location: 20, 25, 26 June 2022 / Washington D.C.
Equipment:
Scope: WO Zenith Star 81mm f/6.9 with WO 6AIII Flattener/Focal Reducer x0.8
OSC Camera: ZWO ASI 2600 MC Pro at 100 Gain and 50 Offset
Mount: iOptron GEM28-EC
Guide Scope: ZWO ASI 30mm f/4
Guide Camera: ZWO ASI 120mm mini
Light Pollution Filter: Optolong L-eXtreme Dual Bandpass
Processing Software: Pixinsight
Processing Steps:
Preprocessing: I preprocessed 60x300s subs (= 5.0 hours) in Pixinsight to get an integrated image using the following process steps: Image Calibration > Cosmetic Correction > Subframe Selector > Debayer > Select Reference Star and Star Align > Image Integration.
Linear Postprocessing: Dynamic Crop > Dynamic Background Extractor (both subtraction to remove light pollution gradients and division for flat field corrections) > Background Neutralization > Color Calibration.
Nonlinear Postprocessing and additional steps: Histogram Transformation > Noise Xterminator > Histogram Transformation (small doses in multiple passes) > Local Histogram Equalization > Curves Transformation (small doses in multiple passes).
Acquisition, Calibration- Mike Selby
Post-processing- Warren Keller
Telescope- PlaneWave 1000 and RiDK 700
Mounts- Planewave/Officina Stellare Polar Fork Mount
Camera- FLI PL16803
Filters: Chroma LRGB 2" · Astrodon LRGB
Software: StarKeeper.it Voyager
Location- Obstech, El Sauce, Chile
PixInsight 1.8.8-8, Photoshop 2021
Object description at www.billionsandbillions.com
WWT Caerlaverock
New Calibration tool, photo's that looked too dark to be of any use now show some detail.
As taken in camera
3-3-2017 - Flight Calibration Services, Diamond DA-42 Twin Star.
Seen here parked on stand 230L. It arrived at Gatwick the previous evening to carry out ILS calibration flights. It departed back to Shoreham later in the day.
Info:
The aircraft was built in 2008 and was delivered to D-GTTI to a private customer. It was later delivered as G-DGPS to Flight Calibration Services on 27-3-2012 after undergoing a few modifications for ILS calibration work.
C/n - 42.355
Celestron 9.25 + Celestron f/6.3 Reducer + ZWO ASI533MC + Optolong L-Pro
EQ6-R Pro
Guiding with ASI120MC-S + William Optics UniGuide 32mm
220 x 30" lights
No calibration frames
Nebulosity4 for Mac
PixInsight
Cairns, Australia
Bortle 6
Welcome to Galactic Park
Taken during instrument calibration, this image helped test Webb's ability to dig up galactic "fossils." Ancient galaxies are so far that as space expands, their light has stretched into infrared wavelengths — Webb's specialty.
Did that large spiral galaxy towards the bottom of the image catch your eye? Named LEDA 2046648, it’s a little over a billion light-years from Earth and located in the constellation Hercules.
Using images such as this one, scientists can compare galactic “dinosaurs” with modern galaxies. In turn, this helps us learn more about how galaxies evolve — making Webb the ultimate space paleontologist.
Read more and download here: esawebb.org/images/potm2301a/
Credits: ESA/Webb, NASA and CSA, A. Martel.
Image description: A crowded field of galaxies is interspersed with bright 8-pointed stars on a dark background. The galaxies and stars come in a variety of sizes and colors, ranging from bluish white to orange. Some galaxies are large enough to make out spiral arms, while others look like faint smudges or pinpricks. The most prominent feature is a large, detailed spiral galaxy called LEDA 2046648, seen at an oblique angle towards the bottom of the frame. A smaller spiral galaxy is just below it. About one-quarter the size of its larger companion, this small galaxy looks like a miniature version of LEDA 2046648. Both of these spiral galaxies have glowing cores and areas of star formation lighting up their pale pink arms.
De aspecto caótico, estos filamentos de gases convulsionados y resplandecientes, visibles en el cielo terrestre en dirección de la constelación del Cisne, forman parte de la nebulosa del Velo
Considerada en conjunto, la nebulosa del Velo es el enorme remanente de una supernova es decir, una nube en expansión originada por la muerte explosiva de una estrella masiva.
La luz de la explosión de la supernova original probablemente llegó a la Tierra hace más de 5 000 años. Expulsadas violentamente por el cataclismo, las ondas de choque se propagaron por el medio interestelar barriendo e ionizando toda la materia que encontró a su paso.
Realización:
-Montura: SW EQ6R
-Tubo: APM 107/700-Reductor RIccardi 0.75x
-Auto enfoque: RB Focus V2.3
-Control Energia:RB-Focus Balinor Smart PowerBox V2.0
-Cámara principal: Zwo ASI294MC Pro
-Filtro: Optolong L-Extreme
40 tomas light 300"
tomas de calibración darks y flats
Las inviernas (Guadalajara)
Tiempo exposición: 3,5 horas
-----------------------------------------------------------------------------------
Chaotic in appearance, these filaments of convulsed and glowing gases, visible in the terrestrial sky in the direction of the constellation Cygnus, are part of the Veil Nebula.
Taken together, the Veil Nebula is the enormous remnant of a supernova, that is, an expanding cloud caused by the explosive death of a massive star.
Light from the original supernova explosion probably reached Earth more than 5,000 years ago. Violently ejected by the cataclysm, the shock waves propagated through the interstellar medium, sweeping away and ionizing all matter in their path.
Realization:
-Mount: SW EQ6R
-Tube: APM 107/700-RIccardi Reducer 0.75x
-Auto focus: RB Focus V2.3
-Energy Control: RB-Focus Balinor Smart PowerBox V2.0
-Main camera: Zwo ASI294MC Pro
-Filter: Optolong L-Extreme
40 light sockets 300"
darks and flats calibration sockets
Las inviernas (Guadalajara)
Exposure time: 3.5 hours
Acquisition, Calibration- Mike Selby
Post-processing- Warren Keller
Telescope- CDK1000, CDK17
Mounts- Planewave
Camera- FLI PL16803
Filters: Chroma LRGB 2"
Software: StarKeeper.it Voyager
Location- Obstech, El Sauce, Chile
PixInsight 1.8.9, Photoshop 2023
Object description at www.billionsandbillions.com
Flight Calibration Services (FCS) Diamond Aircraft DA-62 G-VNAV is taxiing on runway 31 for apron 3 at Malta International Airport (LMML) after a few hours of flight calibration around the Maltese Islands
Acquisition, Calibration- Mike Selby
Post-processing- Warren Keller and Mike Selby
Telescope- PlaneWave 1000 and RiDK 700
Mounts- Planewave/Officina Stellare Polar Fork Mount
Camera- FLI PL16803
Filters: Chroma LRGB 2" · Astrodon LRGB
Software: StarKeeper.it Voyager
Location- Obstech, El Sauce, Chile
PixInsight 1.8.8-8, Photoshop 2021
Object description at www.billionsandbillions.com
Acquisition, Calibration- Mike Selby
Post-processing- Warren Keller
Telescope- PlaneWave PW1000, OS RiDK 700
Mounts- Planewave
Camera- FLI PL16803
Filters: Chroma LRGB 2"
Software: StarKeeper.it Voyager
Location- Obstech, El Sauce, Chile
PixInsight 1.8.9, Photoshop 2022
Object description at www.billionsandbillions.com
Acquisition, Calibration- Mike Selby
Post-processing- Warren Keller
Telescope- RiDK 500
Mounts- Planewave
Camera- FLI PL16803
Filters: Chroma LRGB 2"
Software: StarKeeper.it Voyager
Location- Obstech, El Sauce, Chile
PixInsight 1.8.9, Photoshop 2022
Object description at www.billionsandbillions.com
Acquisition, Calibration- Mike Selby
Post-processing- Warren Keller
Telescope- CDK1000
Mounts- Planewave
Camera- FLI PL16803
Filters: Chroma LRGB 2"
Software: StarKeeper.it Voyager
Location- Obstech, El Sauce, Chile
PixInsight 1.8.9, Photoshop 2022
Object description at www.billionsandbillions.com
Acquisition, Calibration- Mike Selby
Post-processing- Warren Keller
Telescope- PlaneWave CDK1000 and RiDK 700
Mounts- Planewave/Officina Stellare Polar Fork Mount
Camera- FLI PL16803
Filters: Chroma LRGB 2" · Astrodon LRGB
Software: StarKeeper.it Voyager
Location- Obstech, El Sauce, Chile
PixInsight 1.8.8-8, Photoshop 2021
Object description at www.billionsandbillions.com