Another point IMO is image scale has a real effect on color perception....the greenish blue I saw observing M27 through my 25x150 binoculars was not seen though larger apertures at higher magnifications.
My take on this is spreading the total amount of light over a larger area (ie higher magnifications) naturally puts less energy into the same area (retinal receptors)
Also, the effects of two eyes has to be taken into account. Two 6 inch unobstructed apertures can cram a lot of photons into the eyes. There is 40% greater contrast using two eyes over one. The Fujinons are equivalent to a 7 inch refractor in perceived light gathering at a 6mm exit pupil!
Enjoying this discussion....this is what I look forward to on CN.
-------------------- Mr. Bill
Oberwerk 100BT 45 degree + Hercules fork mount
15x70 AP binos + Paragon p-mount
120mm f/5 Orion achromat + Moonlite focuser
140mm f/5.7 Vixen NeoAchro Petzvel refractor
150mm f/6.5 Antares achromat
150mm f/8 "bent" homemade achromat
8 inch Orion newt with f/5 Swayze mirror
10 inch f/4.7 Orion newt + Paracorr
15 inch f/5 Discovery split tube
26mm Nagler, 17mm Nagler, 13mm Ethos, 8mm Ethos
Member IDA
"Life's too short to look through "almost as good" eyepieces"
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Re: Is it possible to see the nebula with colour?
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