DPRevived & The Photo
  • Web Site
  • chevron_right Threads
  • label All Forums
  • label Discussion News and Discussions
  • label Open Open Talk

Are smaller pixels/sensors better for macro.

DonaldB
June 30, 2023
chat_bubble_outline 92
first_page chevron_left
first_page chevron_left
  • link
    JimKasson
    Members 1738 posts
    July 2, 2023, 10:07 p.m. July 2, 2023, 10:07 p.m.
    link
    @DonaldB has written:
    @JimKasson has written:

    Then I've got a camera for you:

    blog.kasson.com/the-last-word/sloof-lirpa-announces-high-dynamic-range-camera/

    sounds like computational photography.

    Did you notice the date of the post?

  • link
    JimKasson
    Members 1738 posts
    July 2, 2023, 10:08 p.m. July 2, 2023, 10:08 p.m.
    link
    @JACS has written:

    This corresponds to sampling theory very well. Theoretically, Q=2 is all that you need. But then you need to use the sinc interpolation, which is not very practical. Some degree of oversampling makes the interpolation much easier, and largely independent of the interpolant.

    Good point.

  • link
    IliahBorg
    Members 976 posts
    July 2, 2023, 11:08 p.m. July 2, 2023, 11:08 p.m.
    link
    @JACS has written:
    @IliahBorg has written:
    @JACS has written:

    It is about the factor 2 here:

    Q = 2 * Fcsensor / Fclens

    At some point Zeiss were showing that with a microscope "Q" up to 3 were showing visible improvements, but above 3 (they went to 5 for the critics to be sure) no visible improvement happened. That was with a monochrome sensor.

    This corresponds to sampling theory very well. Theoretically, Q=2 is all that you need. But then you need to use the sinc interpolation, which is not very practical. Some degree of oversampling makes the interpolation much easier, and largely independent of the interpolant.

    "That was with a monochrome sensor." ;)

    JimKasson likes this.

    favorite 1

  • link
    JACS
    Members 878 posts
    July 2, 2023, 11:46 p.m. July 2, 2023, 11:46 p.m.
    link

    [deleted]

  • link
    DonaldB
    Members 2365 posts
    July 3, 2023, 1:11 a.m. July 3, 2023, 1:11 a.m.
    link

    well did my final test 4x amscope microscope objective 20meg em12 fly head eye detail , sony a74 apsc mode 14 meg image. the sony absolutly destroyed the smaller sensor pixels on detail sharpness and contrast even magnifying it to suit the 20 meg file. then used the 10 x olympus objective pulled back to (6x aprox )the same framing as the 20 meg olympus image. the sony just didnt just destroy it, it abliterate the smaller pixels. its on another planet.

  • link
    JACS
    Members 878 posts
    July 3, 2023, 2:42 a.m. July 3, 2023, 2:42 a.m.
    link

    [deleted]

  • link
    DonaldB
    Members 2365 posts
    July 3, 2023, 2:50 a.m. July 3, 2023, 2:50 a.m.
    link

    Ok whos in for the bomb shell ! what can produce the sharpest most detailed shot at 4x of the fly head identical objective and lighting

    a6300 24 meg

    a7iv crop mode 14 meg sensor

    place your bets and then i will shoot the same with an olympus 10 x objective ๐Ÿ˜Ž๐Ÿ˜

  • link
    DonaldB
    Members 2365 posts
    July 3, 2023, 6:14 a.m. July 3, 2023, 6:14 a.m.
    link

    and the winner is .......................................................................... me of cause ๐Ÿ˜๐Ÿ˜œ

    a74 crop mode 14 meg Vers a6300 24 meg 10x olympus microscope objective same dead fly ๐Ÿ˜’ he was alive but i acidently squashed him transfering him to the studio. at least he was still ๐Ÿคจ๐Ÿ™„ identical lighting and processing. and 100 images each stack. electronic shutter remote shutter control so no vibration at all.
    the a74 is just an amazing camera 10 frames per second no blackout unlimited buffer took a fraction of the time to shoot the image compared to the a6300.

    100 % a74 6300 15x.jpg

    100 % a74 6300 15x.jpg

    JPG, 2.3ย MB, uploaded by DonaldB on July 3, 2023.

first_page chevron_left
arrow_upward Go to top
  • DPRevived.com is owned and operated by The Photographer's Foundation Limited, registered in England, company number 14795583. Email: management@DPRevived.com
powered by misago