Seeing colours?
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Seeing colours?
Does anyone happen to know "typical" criteria of seeing colours?
I was thinking that there probably needs to be intense enough light (the low light cells don't "see" colours, sorry for not remembering the names of the cells in English), and I guess there needs to be big enough lit area too to tell the colour?
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Re: Seeing colours?
For
Cheers,
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Re: Seeing colours?
It's the contrast between the colours that makes it stand out.
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Re: Seeing colours?
I mean, what might be the "limit" (in any units) when the cones (thanks, JayTee) kick in noticeably.
And I have a feeling that it's hard to tell the colour of a very small, but intense "pinpoint" of light.
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Telescope: OrionOptics XV12, Mount: CEM120, Tri-pier 360 and alternative dobson mount.
Grab 'n go: Omegon AC 102/660 on AZ-3 mount
Eyepieces: 26 mm Omegon SWAN 70°, 15 mm TV Plössl, 12.5 mm Baader Morpheus, 10 mm TV Delos, 6 mm Baader Classic Ortho, 5 mm TV DeLite, 4 mm and 3 mm TV Radians
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Some filters (#80A, ND-96, ND-09, Astronomik UHC)
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Re: Seeing colours?
This may answer your question, here is an article on Mesopic vision.
https://en.wikipedia.org/wiki/Mesopic_vision
Cheers,
JT
∞ AP Scopes: #1: TPO 6" f/9 RC #2: ES 102 f/7 APO #3: ES 80mm f/6 APO
∞ G&G Scopes: #1: Meade 102mm f/7.8 #2: Bresser 102mm f/4.5
∞ Guide Scopes: 70 & 80mm fracs -- The El Cheapo Bros.
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Re: Seeing colours?
Great explanation and cool link. Thanks JT.JayTee wrote: ↑Tue Jun 30, 2020 11:59 pm Regarding Rods and Cones: they produce three levels of light perception. Scotopic (low-light = rods), Photopic (bright-light = cones) and the third is the range of light perception between the two (scotopic and photonic) called mesopic.
This may answer your question, here is an article on Mesopic vision.
https://en.wikipedia.org/wiki/Mesopic_vision
Cheers,
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Re: Seeing colours?
But blues and Grey's can look alike in my eyes.
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Re: Seeing colours?
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Re: Seeing colours?
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Re: Seeing colours?
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Re: Seeing colours?
Cheers,
JT
∞ AP Scopes: #1: TPO 6" f/9 RC #2: ES 102 f/7 APO #3: ES 80mm f/6 APO
∞ G&G Scopes: #1: Meade 102mm f/7.8 #2: Bresser 102mm f/4.5
∞ Guide Scopes: 70 & 80mm fracs -- The El Cheapo Bros.
∞ Mounts: iOptron CEM70AG, SW EQ6R, Celestron AVX, SLT & GT (Alt-Az), Meade DS2000
∞ Cameras: #1: ZWO ASI294MC Pro #2: 662MC #3: 120MC, Canon T3i, Orion SSAG, WYZE Cam3
∞ Binos: 10X50,11X70,15X70, 25X100 ∞ AP Gear: ZWO EAF and mini EFW and the Optolong L-eXteme filter
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Re: Seeing colours?
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Re: Seeing colours?
That's why the "noticeably" in "kick in noticeably".JayTee wrote: ↑Tue Jun 30, 2020 11:59 pm Regarding Rods and Cones: they produce three levels of light perception. Scotopic (low-light = rods), Photopic (bright-light = cones) and the third is the range of light perception between the two (scotopic and photonic) called mesopic.
This may answer your question, here is an article on Mesopic vision.
https://en.wikipedia.org/wiki/Mesopic_vision
Cheers,
JT
Senior Embedded SW Designer
Telescope: OrionOptics XV12, Mount: CEM120, Tri-pier 360 and alternative dobson mount.
Grab 'n go: Omegon AC 102/660 on AZ-3 mount
Eyepieces: 26 mm Omegon SWAN 70°, 15 mm TV Plössl, 12.5 mm Baader Morpheus, 10 mm TV Delos, 6 mm Baader Classic Ortho, 5 mm TV DeLite, 4 mm and 3 mm TV Radians
Cameras: ZWO ASI 294MM Pro, Omegon veLOX 178C
OAG: TS-Optics TSOAG09, ZWO EFW 7 x 36 mm, ZWO filter sets: LRGB and Ha/OIII/SII
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Some filters (#80A, ND-96, ND-09, Astronomik UHC)
Laptop: Acer Enduro Urban N3 semi-rugged, Windows 11
LAT 61° 28' 10.9" N, Bortle 5
I don't suffer from insanity. I'm enjoying every minute of it.
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Re: Seeing colours?
Truckload of thanks, JayTee! That's even more than I dared to hope for!
I had to save that picture on my computer. I guess I'll spend some time with it.
Senior Embedded SW Designer
Telescope: OrionOptics XV12, Mount: CEM120, Tri-pier 360 and alternative dobson mount.
Grab 'n go: Omegon AC 102/660 on AZ-3 mount
Eyepieces: 26 mm Omegon SWAN 70°, 15 mm TV Plössl, 12.5 mm Baader Morpheus, 10 mm TV Delos, 6 mm Baader Classic Ortho, 5 mm TV DeLite, 4 mm and 3 mm TV Radians
Cameras: ZWO ASI 294MM Pro, Omegon veLOX 178C
OAG: TS-Optics TSOAG09, ZWO EFW 7 x 36 mm, ZWO filter sets: LRGB and Ha/OIII/SII
Explore Scientific HR 2" coma corrector, Meade x3 1.25" Barlow, TV PowerMate 4x 2"
Some filters (#80A, ND-96, ND-09, Astronomik UHC)
Laptop: Acer Enduro Urban N3 semi-rugged, Windows 11
LAT 61° 28' 10.9" N, Bortle 5
I don't suffer from insanity. I'm enjoying every minute of it.
- turboscrew
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Re: Seeing colours?
Truckload of thanks to you too, John Baars!John Baars wrote: ↑Wed Jul 01, 2020 9:46 am A review of published data over here: https://www.houseofoutdoor.com/testrapp ... ighres.pdf
This is definitely something I want to read. Also downloaded that on my computer.
Now there is plenty to do during these annoying rains.
Senior Embedded SW Designer
Telescope: OrionOptics XV12, Mount: CEM120, Tri-pier 360 and alternative dobson mount.
Grab 'n go: Omegon AC 102/660 on AZ-3 mount
Eyepieces: 26 mm Omegon SWAN 70°, 15 mm TV Plössl, 12.5 mm Baader Morpheus, 10 mm TV Delos, 6 mm Baader Classic Ortho, 5 mm TV DeLite, 4 mm and 3 mm TV Radians
Cameras: ZWO ASI 294MM Pro, Omegon veLOX 178C
OAG: TS-Optics TSOAG09, ZWO EFW 7 x 36 mm, ZWO filter sets: LRGB and Ha/OIII/SII
Explore Scientific HR 2" coma corrector, Meade x3 1.25" Barlow, TV PowerMate 4x 2"
Some filters (#80A, ND-96, ND-09, Astronomik UHC)
Laptop: Acer Enduro Urban N3 semi-rugged, Windows 11
LAT 61° 28' 10.9" N, Bortle 5
I don't suffer from insanity. I'm enjoying every minute of it.
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Re: Seeing colours?
Wow that is outstanding, one of the most concise articles I’ve seen - this is of use to me professionally as well. Many thanks for the link John.John Baars wrote: ↑Wed Jul 01, 2020 9:46 am A review of published data over here: https://www.houseofoutdoor.com/testrapp ... ighres.pdf
Tony.
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Re: Seeing colours?
JT
∞ AP Scopes: #1: TPO 6" f/9 RC #2: ES 102 f/7 APO #3: ES 80mm f/6 APO
∞ G&G Scopes: #1: Meade 102mm f/7.8 #2: Bresser 102mm f/4.5
∞ Guide Scopes: 70 & 80mm fracs -- The El Cheapo Bros.
∞ Mounts: iOptron CEM70AG, SW EQ6R, Celestron AVX, SLT & GT (Alt-Az), Meade DS2000
∞ Cameras: #1: ZWO ASI294MC Pro #2: 662MC #3: 120MC, Canon T3i, Orion SSAG, WYZE Cam3
∞ Binos: 10X50,11X70,15X70, 25X100 ∞ AP Gear: ZWO EAF and mini EFW and the Optolong L-eXteme filter
∞ EPs: ES 2": 21mm 100° & 30mm 82° Pentax XW: 7, 10, 14, & 20mm 70°
Searching the skies since 1966. "I never met a scope I didn't want to keep."
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