Thread: Your prime set has nothing on this lens for a 3200 Megapixel camera

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  1. #1 Your prime set has nothing on this lens for a 3200 Megapixel camera 
    Senior Member George Tsai's Avatar
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  2. #2  
    Moderator Phil Holland's Avatar
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    Scientist: "Can you help us clean a lens?"
    Me: "Let me grab my Kimwipes, erm... Kimtowels and a bucket of Panco. Somebody hold the line and dangle me over this thing."
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  3. #3  
    Senior Member Karim D. Ghantous's Avatar
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    That's awesome. Note that they're using CCDs. Hmmm.
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  4. #4  
    Moderator Phil Holland's Avatar
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    Quote Originally Posted by Karim D. Ghantous View Post
    That's awesome. Note that they're using CCDs. Hmmm.
    Fairly common in the world of scientific astro-imaging. But you'll have to keep in mind the rather extreme power requirements of this system and the utilization of cryocoolers to allow for clean long exposure imagery.

    The OG 4K Film Scanner back at the studio did indeed use a scientific 4K CCD imager as was also super cooled.

    CMOS became very popular for portable cameras mainly due to better thermal management as well as lower power consumption. Interestingly CCDs were more evolved and adopted early on particularly in the still DSLR world, but then CMOS of course improved drastically as industries adopted it more and put more resources in developing better sensors.

    But CCDs are still out there. Just not very common for what we do these days.

    There's been some really interesting sensor technologies developed in the last few years we haven't yet seen pop up in cameras though. Likely for image quality related reasons that are important to us like color and such. But everything evolves. CMOS is going to new places as well a whole bunch in the last decade and likely for at least the next decade.
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  5. #5  
    Senior Member Zack Birlew's Avatar
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    Woof, Id hate to ask the price of the protective B+W UV filter for this one!
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  6. #6  
    Senior Member Karim D. Ghantous's Avatar
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    Quote Originally Posted by Phil Holland View Post
    The OG 4K Film Scanner back at the studio did indeed use a scientific 4K CCD imager as was also super cooled.
    This makes sense. I have heard that some sensors on some scanners are 'noisy'. If so, then why not implement multi-exposure averaging for higher quality scans? In fact, why have Bayer filters on scanner sensors? They should be monochrome sensors with three primary LEDs providing illumination. Three shots per frame. As pure as you can get.

    You know what a Leica M9 owner said? Noise is lessened by using a slower SD card. Apparently it has something to do with how the data chain is set up. CMOS sensors work very differently, and the data rate of the SD card has no effect. I found that rather intriguing, if it's true.
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  7. #7  
    Senior Member Mark Phelan's Avatar
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    Quote Originally Posted by Phil Holland View Post
    Scientist: "Can you help us clean a lens?"
    Me: "Let me grab my Kimwipes, erm... Kimtowels and a bucket of Panco. Somebody hold the line and dangle me over this thing."
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