Behind the curtains

Slides of the talk I gave together with Daniele Bonaldo (@danybony_) at Droidcon London 2021

Transcript

1. B E H I N D T H E C U R TA I N S
   A TA L K A B O U T P H O T O S
   Photo by Keenan Barber on Unsplash
   

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2. Daniele Bonaldo
   @danybony_
   Roberto Orgiu
   @_tiwiz
   

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3. M E G A P I X E L S
   D O T H E Y M AT T E R ?
   6000
   4000
   

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4. M E G A P I X E L S
   D O T H E Y M AT T E R ?
   6000 4000
   24 MP
   

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5. P H O T O S I T E S
   

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6. >8.4μm
   0.8μm ~ 2.44μm
   

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7. W H AT A B O U T S M A R T P H O N E S ?
   0.8μm
   0.8μm
   

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8. W H AT A B O U T S M A R T P H O N E S ?
   2.4μm
   2.4μm
   

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9. W H AT A B O U T S M A R T P H O N E S ?
   2.4μm
   2.4μm
   SUPER PIXEL !!1!
   aka Pixel Binning
   

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10. S A M S U N G S 2 0 U LT R A
    E X A M P L E
    2.4μm
    2.4μm
    108 MP
    grouped by 9
    12MP
    

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11. S A M S U N G S 2 0 U LT R A
    E X A M P L E
    2.4μm
    2.4μm
    108 MP
    grouped by 9
    12MP
    Pixel Shifting
    

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12. S A M S U N G S 2 0 U LT R A
    E X A M P L E
    2.4μm
    2.4μm
    108 MP
    grouped by 9
    12MP
    Pixel Shifting
    

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13. S O N Y A L P H A 7 R I V
    A N O T H E R E X A M P L E
    S O N Y A L P H A 7 S I I I
    Full Frame Cameras
    61 MP 12.1 MP
    3.73 μm 8.32 μm
    M O R E D E TA I L S L E S S N O I S E
    

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14. W H Y T H E Y A R E I M P O R TA N T
    S E N S O R A N D S I Z E
    

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15. W H Y T H E Y A R E I M P O R TA N T
    S E N S O R A N D S I Z E
    B I G G E R S E N S O R = M O R E L I G H T
    M O R E L I G H T = B E T T E R P H O T O S
    

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16. 3 5 M M I S T H E
    S TA N D A R D
    C R O P FA C T O R
    36mm
    24mm
    1.5x
    

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17. T H E R E A L O N E I S O N LY O N F F
    F O C A L L E N G T H
    

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18. T H E R E A L O N E I S O N LY O N F F
    F O C A L L E N G T H
    F O C A L L E N G T H X C R O P FA C T O R
    A P E R T U R E X C R O P FA C T O R
    

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19. S A M S U N G G A L A X Y
    S 2 0 F E
    E X A M P L E
    Sensor size: 7.25mm x 5.44m
    Aperture: F1.8
    Crop factor: 4,78
    Focal Length: 5.4mm
    Real aperture: F8
    Real focal length: 26mm
    

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20. O N C A M E R A S
    C O N T R O L L I N G A P E R T U R E
    

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21. C O N T R O L S
    C A M E R A
    APERTURE
    

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22. W H AT A B O U T
    P H O N E S ?
    S A M S U N G G A L A X Y S 2 0 F E
    12MP F1.8 26mm
    8MP F2.4 76mm
    12MP F2.2 13mm
    Why no shallow DoF?
    

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23. A R E A L W O R L D E X A M P L E
    D E P T H O F F I E L D
    

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24. S O N Y A L P H A 7 I I I
    

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25. S O N Y A L P H A 6 6 0 0
    

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26. S A M S U N G G A L A X Y S 2 0 F E
    

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27. F U L L F R A M E A P S - C S M A R T P H O N E
    

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28. – C H A S E J A R V I S
    “The best camera is the one that's with you”
    

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30. AVA I L A B L E R E M O T E A P P S
    H O W T O C O N T R O L Y O U R C A M E R A
    

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31. C O N T R O L L I N G T H E C A M E R A T H R O U G H A N A P P
    • Remote controller
    • Long exposures
    • Shot sequence
    • Shot programming
    • Pleasant UI
    

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32. C O N T R O L L I N G T H E C A M E R A T H R O U G H A N A P P
    • Remote controller
    • Long exposures
    • Shot sequence
    • Shot programming
    • Pleasant UI
    

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33. S O N Y ’ S I M A G I N G E D G E M O B I L E
    

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34. S H U T T E R
    H T T P S : / / S H U T T E R . D E V
    

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35. M O N I T O R +
    H T T P S : / / M O N I T O R P L U S . C C
    

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36. S O W E D E C I D E D
    T O M A K E O U R O W N !
    

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37. A P P - C A M E R A C O N N E C T I O N
    

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38. SSID: ….
    Password: ….
    

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39. R E S T A P I
    

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40. B U T…
    API is not great
    I N S E RT S A D
    T R O M B O N E S O U N D
    H E R E
    

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41. C A M E R A S TAT U S
    

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44. {
    “result": [
    {
    “type":"cameraStatus",
    “cameraStatus":"IDLE"
    }, …
    ]
    }
    { "method": “g
    

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45. {
    “result": [
    {
    “type":"exposureCompensation",
    “currentExposureCompensation”:”1.0",
    “maxExposureCompensation”:”3.0”,
    “minExposureCompensation”:”-3.0“,
    …
    }, …
    ]
    }
    { "method": “g
    

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46. S E T T I N G S H O T VA L U E S
    

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47. • setShutterSpeed (1”, 1/2, 1/10, 1/60, 1/250, …)
    • setIsoSpeedRate (100, 200, 400, 800, …)
    • setFNumber (1.8, 2.8, 4.0, 8.0, …)
    • setExposureCompensation
    • setWhiteBalance ("Color Temperature", true, 2500)
    • …
    

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48. L I V E V I E W D I S P L AY
    

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50. {
    “result": [
    “http://ip:port/liveview/liveviewstream"
    ]
    }
    { "method": “s
    

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51. U P L O A D S H O T D ATA
    actHalfPressShutter
    
    actTakePicture
    awaitTakePicture
    pictureUrl
    

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52. W H AT ’ S N E X T…
    

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53. • New app features!!1!
    • Programmable sequence of shots
    • Intervalometer
    • Image transfer
    • Wearable support
    • Open-source SDK
    ASK US
    ABOUT IT!1!!1
    

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54. Q U E S T I O N S ?
    

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