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It was designed for film, ie hypered tech pan from memory. Can you imagine what a colour/NB filter 400mm in diameter would cost? I would like to see it perform with a 400mm contiguous sized modern sensor as sensitive as Mikes. The needed exposures would be measured in a few seconds.
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Also used Kodak blue green senstive fine grain IIIaJ etc
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What also needs to be said is that the exquisite optical accuracy of Mikes 150mm optic with associated filters is barely matched by his sensor.
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CCD image scale = 1.4"/pix, 152EDF resolution 0.75", seeing >2"..?
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The old rule is still true. Nothing beats aperture!
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Yeh, a type of fever is named after it even
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There is also no point having more aperture and FoV than your sensor can collect!
How many of your sensors would it take to cover a 400mm plate Mike?
I think you will find it is about the same as the ratio of your optics aperture (in area) to the 1.2M UK Schmidt .
Bert
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KAI16803 sensor 37mm X 37mm = 1369sqmm
400mm plate = 160 000sqmm = 117 X 16803 sensors to cover the field
Hmm..?..maybe I could talk to the bank
6" APO objective = 18142sqmm
1.2m Objective = 3 551 943sqmm = 196 times more aperture area
I think that's right..
Anyway Im upgrading to a 12" soon... so who knows what the future holds
Mike