Diana Rebman, Photographer
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The Time-Lapse Holy Grail
Granite Bay Software The Time-lapse Holy Grail www.granitebaysoftware.com The Time-lapse Holy Grail How to use GBTimelapse with Autoramp For Expert Users – and the curious! By Mike Posehn, Ph.D., aka Dr. Timelapse A great time-lapse is all about change and movement. However, changing light conditions often wreak havoc on your footage, resulting in brighter and darker frames which appear as annoying flicker in your time-lapse. Capturing a smooth time-lapse of a sunset from full daylight to darkest night, without flicker, has been called the “Time-lapse Holy Grail” because it has been practically impossible to achieve. However, you can now achieve this Holy Grail with GBTimelapse! In this White Paper, I describe the challenge of The Time-lapse Holy Grail and take you through the process of getting it with GBTimelapse. GBTimelapse has been used for National Geographic videography, the Brazil 2016 Summer Olympics preparations, Thursday Night Football network footage, and much, much more. GBTimelapse is a powerful tool that gives you control over many factors of your time-lapse capture. This White Paper will give you examples of the high tech calculations going on under the hood, what factors you can modify, and ideas for how to use GBTimelapse to best suit your needs. Granite Bay Software The Time-lapse Holy Grail www.granitebaysoftware.com Table of Contents Skip straight to the Holy Grail How-To, Expert Method and Easy Expert Method sections to get right to work. Or, browse through the full paper to get into technical detail. The Time-lapse Holy Grail Table of Contents 1. -
Reveni Labs Light Meter User Manual and Operating Instructions Revision: 4 Date: 2020-04-16
Reveni Labs Light Meter User Manual and Operating Instructions Revision: 4 Date: 2020-04-16 Revision: 4 – 2020-04-16 Layout and Features Key Features • Ambient reflective metering • Single LR44 battery • Integrated flash/accessory • EV Display feature shoe mount • 45-degree cone sensor field • Bright and crisp OLED of view display • Left and right lanyard/strap • Simple controls and menu holes • Aperture or Shutter priority • Dimensions: 0.92(22.5) x mode 0.86(21.8) x 0.71(17.8) • Exposure compensation in inches(mm) 1/3 stops (-2 to +2 stop • Weight: 9g incl. battery range) Technical Data • Shutter speed range 1hr – 1/8000th sec in 1 stop • Aperture range increments • Film ISO range F0.7 – f1024 in 1 stop increments ISO 1 – ISO 12800, see “Setting Film ISO” for full list • EV Range: EV 2 – EV 19.5 in 0.1EV increments (@ISO 100) Page 2 of 14 Revision: 4 – 2020-04-16 Getting familiar with your meter The Reveni Labs Light Meter is intended for easy attachment to the top of a camera via the flash/accessory “hot/cold” shoe mount. This is a common feature on top of many cameras made in the past 100 years. The precise dimensions of the shoe vary from camera to camera so if initially if the fit of your meter is tight, it will “wear” slightly over the first several uses and become more free-moving. This is not a problem as there are integrated lever springs to ensure the meter does not fall out of the camera mount. -
Intro to Digital Photography.Pdf
ABSTRACT Learn and master the basic features of your camera to gain better control of your photos. Individualized chapters on each of the cameras basic functions as well as cheat sheets you can download and print for use while shooting. Neuberger, Lawrence INTRO TO DGMA 3303 Digital Photography DIGITAL PHOTOGRAPHY Mastering the Basics Table of Contents Camera Controls ............................................................................................................................. 7 Camera Controls ......................................................................................................................... 7 Image Sensor .............................................................................................................................. 8 Camera Lens .............................................................................................................................. 8 Camera Modes ............................................................................................................................ 9 Built-in Flash ............................................................................................................................. 11 Viewing System ........................................................................................................................ 11 Image File Formats ....................................................................................................................... 13 File Compression ...................................................................................................................... -
Notes on View Camera Geometry∗
Notes on View Camera Geometry∗ Robert E. Wheeler May 8, 2003 c 1997-2001 by Robert E. Wheeler, all rights reserved. ∗ 1 Contents 1 Desargues’s Theorem 4 2 The Gaussian Lens Equation 6 3 Thick lenses 8 4 Pivot Points 9 5 Determining the lens tilt 10 5.1Usingdistancesandangles...................... 10 5.2Usingbackfocus........................... 12 5.3Wheeler’srules............................ 13 5.4LensMovement............................ 14 5.5BackTilts............................... 14 6Depthoffield for parallel planes 15 6.1NearDOFlimit............................ 15 6.2FarDOFlimit............................ 17 6.3DOF.................................. 17 6.4Circlesofconfusion.......................... 18 6.5DOFandformat........................... 19 6.6TheDOFequation.......................... 19 6.7Hyperfocaldistance......................... 20 6.8Approximations............................ 21 6.9Focusgivennearandfarlimits................... 21 6.9.1 Objectdistances....................... 21 6.9.2 Imagedistances........................ 22 7Depthoffield, depth of focus 23 8Fuzzyimages 24 9Effects of diffractiononDOF 26 9.1Theory................................. 26 9.2Data.................................. 27 9.3Resolution............................... 29 9.4Formatconsiderations........................ 31 9.5Minimumaperture.......................... 32 9.6Theoreticalcurves.......................... 33 10 Depth of field for a tilted lens 35 10.1NearandfarDOFequations.................... 35 10.2 Near and far DOF equations in terms of ρ ............ -
Types of Light
PHOTO 1 Photo One Assignment 1 Reading Light & Lighting Types TYPES OF LIGHT 1) DIRECT LIGHT THAT COMES FOR THE SAME SOURCE OR THE SAME DIRECTION. TYPICALLY, SUN ON A CLEAR DAY OR LIGHT FROM A FLASH OR STROBE. Ø “hot” specular highlights Ø “hard-edged” shadow on subject Ø Distinct cast shadow Ø Loss of some shad ow detail Ø “harsh” look 2) DIFFUSED LIGHT THAT IS SCATTERED OR COMING FROM MANY DIRECTIONS. TYPICALLY SUN LIGHT ON AN OVER-CAST DAY OR LIGHT IN LARGE SHADOWS AND INDOOR SPACES WHICH ARE LIT BY OVERHEAD FLORESCENT. Ø Few distinct shadows on subject Ø No specular highlights Ø Lower contrast Ø “Flat” look Ø Very good at rendering details 3) FILL LIGHT AKA DIRECT/DIFFUSED DIRECTIONAL LIGHT, WHICH HAS BEEN SOFTENED BY ILLUMINATION OF SHADOW AREAS. TYPICALLY Ø Best of direct and diffused lights combined Ø More normal contrast relationships Ø Good “3-D” characteristics Ø Good shadow detail Ø Best general portrait lighting Ø “Natural” look Copyright 2010 by Eric Bosler For this assignment: Take 3 images of each different lighting type listed above using a different shutter speed or f-stop for each, for a total of nine (9) images this technique is known as a {bracket} Materials: 1. Full Sun (early morning or late afternoon are best) 2. Camera 3. Subject 4. Reflective Surface (white cardboard, white fabric, windshield reflector, crumbled aluminum foil) 5. Shade First camera setting will be the recommended one for the lighting conditions. Best time to do this assignment will be early morning or late afternoon in full sun. -
A Changing Picture
Glossary of Photographic Terms Expert knowledge means success Contents 1. Introduction 1. Glossary Terms in Alphabetical Order: 1. A 2. B and C 3. D 4. E and F 5. G 6. H and I 7. J, L and M 8. N and O 9. P and R 10. S 11. T, U, V, W, X and Z 11. Further Information Glossary of Photographic Terms Note: This publication has not been updated and are classified as D-type AF Nikkor since it was last published. Some of the lenses. hyperlinks may have changed and may need updating. In addition, some of the information AF or Auto Focus in this publication may be out of date. Most modern SLR lenses have this function now. The lens automatically focuses on the subject as quick as the eye. With an SLR you Introduction can normally select manual focus if The following glossary contains terms necessary. What is a Camera? relating to digital cameras including SLR and AI (Nikon) DSLR cameras as well as photographic The term camera Automatic index; Nikon's system for telling comes from the the camera's exposure meter what the lens' effects. The list may not be complete as new camera obscura maximum aperture is. terms and acronyms are arising all the time. (Latin for "dark AI/S (Nikon) chamber"), an early Automatic index/Shutter; Nikon's lens mount mechanism for permitting automatic operation in shutter- projecting images. Glossary priority and program auto-exposure The modern camera systems. evolved from the camera obscura. A Aliasing This is an effect caused by sampling an AA Filter image at too low a rate. -
February 2019
February 2019 Thru The Lens Volume 85 No. 2 To Promote the Art of Photography & Showcase the Images of DCC’s Members Editor - Jay Hoppenstein, MD, FDCC [email protected] Page 1 THRU THE LENS | February 2019 Notices - TTL Staff & Index New Column - Q & A Inside this issue: A new column has been introduced last month entitled, Q & A - Left click on the TEXT in the Index Photographic Questions. This will be a place where the ques- and you will be taken to that page tions of the DCC members may be asked on any subject relating to photography. Notices, Index & Staff 2-3 It will be also a place that DCC members may offer answers to ques- New Members - Welcome 3-4 tions posed by DCC members. Heard Nature Museum Contest 5 Send your Q & A to [email protected] and put DCC Q&A in the sub- Click - Jason Ware Lunar Eclipse 6-7 ject line so that it can be distinguished from spam. Include your name and any images that are pertinent to the subject. Story Board - Paradox Preparations 8-10 See Page 18 GSCCC Convention Announcement 11 Out of Focus - Henry Beston 12 Pre-meeting Classes 13 SnapShots -Book Review: Bird Photos 14 January Guest Speaker - Kay Hale 15-17 Q&A - What is the Looney Rule 11? 18 Image of the Month - Jason Ware 19 December Competition 1st Place 20-22 Calendar & Notices 23 Classified Ads, Officers & Directors 24-28 Thru The Lens Staff Cameraon Raw Quality Control Front Cover Image Folk Al Plane Focus Groups Total Lunar Eclipse Donna Blame Me Equipment Malfunction Dia Fram PG Ratings Jason Ware Trey Pod Sharpness Czar Newt R.L.