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(Sony alpha 7) photomicrography

Sony Imaging Edge Desktop;   imagemagick batch crop

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Many fantasize that high megapixel sensors are wasted on optical microscopes,
perhaps supposing perfect optics with ideal MTF.
Meanwhile, in the real world, deconvolution (or unsharp mask) is wanted to compensate less than ideal optics.
Bayer color filter matrix means that claimed 32mp cameras resolve only 8mp for red or blue colors.
Good unsharp masking wants 5x5 pixel arrays to convolve with 2 pixel stride,
thus a good 8 megapixel image should start with at least 128 claimed megapixel capture.

Having owned Canon DSLRs and lenses since 20D,
R5 or R6 would be an obvious 35mm sensor mirrorless body choice,
but Sony's A7II at less than a third the cost suffices.

why A7 II

  • enough pixels
  • USB power, tether
  • live view and electronic first curtain shutter to minimize photomicrograph motion blur.
  • available thin M42 adapter for parfocal microscope attachment
  • Some EF to E-Mount adapters control Canon EF lens aperture, image stabilization and autofocus.
why not
  • lacks focus bracketing, silent shutter
  • lacks Bluetooth
  • lacks full articulating screen   (unavailable until A7RIV)
  • A7R II is significantly better (but more costly)

    Sony A7 II verdict in 2024

    Customizing Sony Cameras & Other Tips! | Tony Northrup   Training Tutorial

    DPReview

    Release w/o Lens:  
    (part of Setting up your Sony A7-ii like a dSLR)

    Beginner’s Guide to Manual Lenses on the Sony a7

    Alpha Shooters A7 II forum


    Sony Alpha a7 II 24.3MP Mirrorless Digital Camera Body ILCE7M2/B item:  276586232196
    Condition:  Used
    Fair used condition. There are scratches and scuffs with paint loss.
    There are a couple scuffs on the screen. No body cap.
    This sale includes the camera body, battery and charger pictured.

    Tested and fully functional.

    received 15 August 2024;   shipped 3 days after payment   firmware already at latest level: 4.01
      A7 II manualsmenumenu tutorial videos
    Sony Alpha a7R II 42.4MP Digital Camera Body Only 100% Working Condition item:  126631383465
    Condition:  Used
    100% excellent working condition and in 100% great pre-owned cosmetic condition.
    USA Model not overseas or grey market & not refurbished.
    Shutter tool app read 119,127 clicks which is approx 24% of its 500,000k shutter click life so lots of life left.
    No dents or dings. Does have some wear on the rear lcd screen that can only be seen when camera is turned off.
    No dust in mirrorless chamber.   Has paint wear/paint rub on the edges of the camera
    and on the flash housing mount (see pics) all purely cosmetic and does not affect the performance of the unit all.
    Last flaw is that the bottom rubber corner is slightly coming unglued and just needs to be reglued.
    No other flaws. Includes Battery, USB charging cable, and Body cap only. No box or manual.
      A7R II Firmware and ManualsmanualHelp Guide (104 pages)

    Canon EF lenses on Sony Alpha FE bodies

    Simultaneous body and lens image stabilization seems doomed
    3 popular alternatives:


    Slim 1mm M42 Lens for Sony E-Mount NEX Adapter item:  256451305279
    Condition:  New
    received 12 Aug 2024

    M42X0.75 Thread to 38mm Telescope Adapter item:  175740798509
    Condition:  New
    M42X0.75 Thread Microscope Adapter Camera Eyepiece Tube 38mm
    Thread specification: T2 thread (M42X0.75mm)
    Thread depth: 4mm
    Flange distance: 2mm
    Outer diameter: 38mm
    Matting treatment: internal full barrel matting thread
    Clear aperture: 34mm
    Material: Metal - Aluminum
    Package: 1pcs adapter only.

    JJC Infrared Wireless Camera Shutter Remote Control Commander With Vlog Video Start Stop Function

    received 12 Aug 2024

    Lexar 128GB Professional 1066x SDXC Memory Card, UHS-I

    Up To 160MB/s Read, for DSLR and Mirrorless Cameras (LSD1066128G-BNNNU)
    received 12 Aug 2024

    Sony FE 28-60mm F4-5.6 Zoom Lens - E-Mount item:  204844435127
    Condition:  Used

    Selling a Sony 28-60mm f4-5.6. Its a perfect size for either A6XXX or A7C bodies,
    otherwise I know a lot of people that put these lenses on their A7R's
    for travel as they perform phenomenally for a kit lens.

    It's missing a small pastic appearance ring on the front that covers some screws.
    It fell of moments after I started using it, I contacted Sony about this months ago,
    they offered to fix i and never got around to doing it.
    They assured me that it wouldn't affect operation and wouldn't let any dust inside,
    as all the glass is within a separate casing.

    Comes with front and rear caps.

    I will ship quickly and in a well packed box.

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