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1 d~=m r~=f What Changes? Everything Why - PDF document

Jan 12, 2023 •378 likes •485 views

_ Skills / Knowledge for your resume d^qbp=pql= Production Risk no downtime p= q= l~= Gates Ambassador q o^fkfkd ` lropb Pete Lightowler Down Under Aquatic Imaging 1 2 d~

  1. _ÉåÉÑáíë • Skills / Knowledge for your resume d^qbp=pql= • Production Risk – no downtime pÉíìé=Ó qÉëí=Ó léÉê~íÉ= • Gates Ambassador q o^fkfkd ` lropb Pete Lightowler Down Under Aquatic Imaging 1 2 dç~äë dç~äë • STO Proficiency • Certifications – Setup – STO Basics – Test – STO Tech – Operate – STO Professional • Convey Knowledge • *Not* a goal: – Equipment – Lenses - Ports – Underwater Cinematography 3 4 `çìêëÉ=lîÉêîáÉï `çìêëÉ=lîÉêîáÉï • Day 2 (Pool) • Day 1 – Hands on STO – Intro – why are we here? – In-water operation / Lens testing – Hands On – STO – Break Down / Maintenance – Optics – Recap – Camera specific considerations – BBQ 5 6 1

  2. d~íÉë=mÜáäçëçéÜó råÇÉêï~íÉê=fåíêç • What Changes? Everything • Why we do what we do – You • Reliability – Sphere of Awareness • Features / Benefits – Optics • Why is this important? – Recipe for Success • Diver first, cameraman second • Familiar equipment 7 8 e~åÇëJçå=JJ ÄêáÉÑäó pÉíìé • STO • Camera Prep – Setup • Housing Prep – Test – Attention to detail – Operate – Seal line – Gland check – Damage 9 10 qÉëí qÉëí • Functional Check • Seal Check Why? – Controls – Unfamiliarity – Smooth, engaged – Haste – Lubricate? – Damage • Pass / Fail criteria. 11 12 2

  3. léÉê~íÉ pql=äÉíë=ÖçÁ • Controls – Setup vs Dynamic • Trim Weighting (more at the pool) • Maintenance – Rinse – Lubricate 13 14 iìåÅÜ=_êÉ~â pÉ~ä=`ÜÉÅâ • Failures? • Look for the Obvious – Damage – Loose Glands – Seal Check Cap – Seal Lines 15 16 pÉ~ä=`ÜÉÅâ pÉ~ä=`ÜÉÅâ • If was OK, then • Locate a leak Something changed • Seal Check – Impact – Soapy water – Customs Inspections • Without Seal Check – New o-ring? – Dive the housing. – Keep it upright, look for water / trails 17 18 3

  4. `çåÑáÖìêáåÖ=L=^ÅÅóÛë oÉéÉ~íW=pql=äÉíë=ÖçÁ • One size does not fit all • Common – Surface feed video – Lights – Ports • Custom 19 20 kÉñí=rmW=léíáÅë léíáÅë • Again – Everything Changes – Amount of light – Color (loss of red) – > depth = >loss – Color correction needed – (Different course) 21 22 léíáÅë mçêíë • Light transmits differently • Flat • Something needed between camera • Dome lens and water • Underwater Corrector • = a Port • Underwater Wide Angle Adapter • Underwater Wide Angle Converter • Nikonos RS hybrid 23 24 4

  5. mçêíë mçêíë • Flat • Flat – Oldest, simplest – Compromises: – Compromises: • Limited Wide Angle • 20% Loss of FOV • Vignetting • Chromatic Aberration 25 26 mçêíë=Ó `Üêçã~íáÅ=^ÄÉêê~íáçå mçêíë=Ó `Üêçã~íáÅ=^ÄÉêê~íáçå 27 28 mçêíë=Ó `Üêçã~íáÅ=^ÄÉêê~íáçå mçêíë • Flat – Benefits • Inexpensive • Faces not distorted. Good for cinema work. 29 30 5

  6. mçêíë mçêíë • Dome • Dome – Simple, Inexpensive – Glass (common) or Acrylic – No loss of FOV – Compromises: • Soft Corners • CA in Corners • Possible flare / reflections 31 32 mçêíë • Dome – Not a simple window – Adds optical element to the lens – Creates a virtual image – VI located 3x radius from dome Typical Dome results: Sharp in center, fuzzy in corners 33 34 35 36 6

  7. mçêíë mçêíë • Dome • Underwater Corrector – Choose a lens with close focus; or – Corrects to D/A of a Dome Port – Larger Dome; or – Usually is prescriptive – Add diopter / close up lens – Matched to a prime lens – Important: Test performance of every – Can have magnification lens w/dome! – Full Field sharpness 37 38 mçêíë Underwater Corrector 39 40 mçêíë mçêíë • Underwater Adapter • Underwater Adapter – Magnified at Wide – Prime or zoom lens – Little or no zoom through support – Can be prescriptive – Can have distortions / aberrations 41 42 7

  8. mçêíë mçêíë • Underwater • Underwater Converter • Converter – Magnified at Wide – For zoom lens – Full zoom through support – Nearly always prescriptive – Matched performance 43 44 mçêíë mçêíë • Underwater • Nikonos RS • Converter • Adaptation 45 46 mçêíë mçêíë • Nikonos RS Adaptation • Nikonos RS Adaptation – Hybrid adaptation – Benefits – Nikon lenses designed for underwater • Quick change bayonet mount • No aberrations, distortions – Prime or Zoom lenses • Smaller size (travel) • 13mm Fisheye 20-35 zoom • Best performance value • 28mm 50mm 47 48 8

  9. mçêíë mçêíë  Flat • Nikonos RS Adaptation • Greater HIGHER PERFORMANCE  Dome Performance – Negatives  Underwater Corrector LOWER COST = • Lenses out of production  Underwater (Wide Angle) Higher Adapter • Found only on the used market • May require new seals –difficult to service Cost  Underwater (Wide Angle) Converter  Hybrid (Nikonos RS) 49 50 `~ãÉê~=péÉÅáÑáÅ kÉñí=ré `çåëáÇÉê~íáçåë • Camera Specific Considerations • What’s important to know about your camera? 51 52 `~ãÉê~=péÉÅáÑáÅ `~ãÉê~=péÉÅáÑáÅ `çåëáÇÉê~íáçåë `çåëáÇÉê~íáçåë • Handling unique color shifts • SloMo for Natural History underwater. • Use of pre-record (critter action) – H20 OLPF / Dragon Color 2 for the • Use of presets – very powerful Magenta issue. – RAW workflow 53 54 9

  10. `~ãÉê~=péÉÅáÑáÅ ob`^m `çåëáÇÉê~íáçåë • Goals • STO • Considered differences among cinema / broadcast / natural history • Proficiency • Good monitoring with focus / exposure tools (that is, we don’t have focus pullers and such) 55 56 qçãçêêçï • Pool, 9 am d^qbp=pql= • Hands on STO review pÉíìé=Ó qÉëí=Ó léÉê~íÉ= • In-pool operation / Checkout qo^fkfkd=`lropb • (Lunch) • Breakdown / Maintenance / Pack • Q&A John Ellerbrock • Wrap up. Social / Feedback Gates Underwater Products, Inc 57 58 10

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