Calibration frames

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lostone United States of America
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Calibration frames

#1

Post by lostone »


Here's one of those stupid questions that is even stupider if not asked.

Do dark frames have to be at the same binning as your light frames. ie. Bin 1 and Bin 2 ect?
Of all the things I've lost, I miss my mind the most! :tease:

Scope: Explorer Scientific 127CF, Askar FR600, Planewave CDK 14""
Guide Scope & Camera: ASI 174, ZWO OAG-L
Camera: QHY 268 Mono, QHY 600 Mono
Mount: Planewave L-350, Skywatcher EQ8-Rh Pro, Losmandy G11
Accessories: Moonlite Nitecrawler WR30, WR35, Eagle 3&4 Pro, QHY CFW3/7 Filterwheel, QHY Polemaster,
Software: N.I.N.A., CdC, Planewave 3, Pixinsight
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STEVE333 United States of America
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Re: Calibration frames

#2

Post by STEVE333 »


Yup!

Same camera temperature
Same binning
Same exposure time

Steve
Steve King: Light Pollution (Bortle 5)
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
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lostone United States of America
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Re: Calibration frames

#3

Post by lostone »


That's what I figured, Well there goes another 15hrs to get some Bin 2 Darks. Only because I decided to start taking my RGB's at Bin 2. Oh well, Things we must do.
STEVE333 wrote: Mon Feb 22, 2021 4:28 am Yup!

Same camera temperature
Same binning
Same exposure time

Steve
Of all the things I've lost, I miss my mind the most! :tease:

Scope: Explorer Scientific 127CF, Askar FR600, Planewave CDK 14""
Guide Scope & Camera: ASI 174, ZWO OAG-L
Camera: QHY 268 Mono, QHY 600 Mono
Mount: Planewave L-350, Skywatcher EQ8-Rh Pro, Losmandy G11
Accessories: Moonlite Nitecrawler WR30, WR35, Eagle 3&4 Pro, QHY CFW3/7 Filterwheel, QHY Polemaster,
Software: N.I.N.A., CdC, Planewave 3, Pixinsight
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SkyHiker United States of America
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Re: Calibration frames

#4

Post by SkyHiker »


I suppose the answer is yes if you want the stacker to do the work. I don't see why you could not do the subtraction manually in a 32 bit editor with pixel math later on with a tweaked multiplier, possibly after a slight blurring. Not to say that I ever tried this myself.
... Henk. :D Telescopes: GSO 12" Astrograph, "Comet Hunter" MN152, ES ED127CF, ES ED80, WO Redcat51, Z12, AT6RC, Celestron Skymaster 20x80, Mounts and tripod: Losmandy G11S with OnStep, AVX, Tiltall, Cameras: ASI2600MC, ASI2600MM, ASI120 mini, Fuji X-a1, Canon XSi, T6, ELPH 100HS, DIY: OnStep controller, Pi4b/power rig, Afocal adapter, Foldable Dob base, Az/Alt Dob setting circles, Accessories: ZWO 36 mm filter wheel, TV Paracorr 2, Baader MPCC Mk III, ES FF, SSAG, QHY OAG-M, EAF electronic focuser, Plossls, Barlows, Telrad, Laser collimators (Seben LK1, Z12, Howie Glatter), Cheshire, 2 Orion RACIs 8x50, Software: KStars-Ekos, DSS, PHD2, Nebulosity, Photo Gallery, Gimp, CHDK, Computers:Pi4b, 2x running KStars/Ekos, Toshiba Satellite 17", Website:Henk's astro images
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