Brenizer Method

Total Page:16

File Type:pdf, Size:1020Kb

Brenizer Method Speaker Notes: Brenizer Method Slide 1 / Open Slide: Brenizer Method Also known as: • Panoramic Stitching • Bokeh Panorama • Bokehrama Slide 2: Panoramic Stitching • Panoramic Photography dates back to 1843 • Some cameras used wide film or wide angle lenses on sliders Shortly after the invention of photography in 1839, the desire to show overviews of cities and landscapes prompted photographers to create panoramas. Early panoramas were made by placing two or more daguerreotype plates side-by-side. Daguerreotypes, the first commercially available photographic process, used silver- coated copper plates to produce highly detailed images. One of the first recorded patents for a panoramic camera was submitted by Joseph Puchberger in Austria in 1843 for a hand-cranked, 150° field of view, 8-inch focal length camera that exposed a relatively large Daguerreotype, up to 24 inches long! Slide 3: Large Format Photography A popular early format, adaptable to many lenses because of it's bellows and allowed precise work because you can see the image on a piece of oiled paper before using exposing your film. With a few notable exceptions, these cameras share the following characteristics: • Large image size: 4x5 inches (10x12cm), the most popular format by far, up to 20x24 inches (the Polaroid camera, which can be rented on-site for a reasonable fee). The film comes in separate sheets rather than rolls. • Flexible bellows connecting the front and back: they allow the use of a range of focal lengths (with different lenses. there is no zooming in such formats) and focussing distances. • Ground glass viewing: makes it possible to see the image with great accuracy before taking the exposure • Interchangeable lenses: you are not limited to a particular mount. • It required a slow contemplative process for each image. This is why it is largely used for fine art photography currently. Slide 4: Large Format Digital Digital large and medium format camera are powerful, and expensive! Medium format digital camera begin at 4-7k, and higher end models begin at 19k or more. This puts the format out of the reach of most photographers. Additionally current DSLR or mirrorless cameras can already capture images big enough for printing on billboards. So how can a young or new photographer mimic this unique photo style? Slide 5: Bokeh Panorama Stitch AKA: The Brenizer Method The Brenizer Method, also known as a Bokeh Panorama Stitch, or “Bokehrama" is one method to get close to that large format look, which consists of a wide angle with a shallow depth of field. The image above was created with 20-30 exposures that were then combined in a program like Photoshop. Slide 6: The Brenizer Method Professional photographer Ryan Brenizer refers to the technique as panoramic stitching. It is a recognised technique by many photographers that originated with panoramic film cameras. It is quite common for images of this sort to have an aspect ratio similar to that of an image produced via a traditional analog camera, either square (as often used in medium format cameras) or slightly wider (as used in large format cameras). The image stitching process generally introduces a great deal of distortion. To recover a square or rectangular shape, cropping generally needs to be applied. Slide 7: Brenizer Technique The photo technique to create a Bokehrama image is simple: 1. Use a wide open aperture (widest your lens will go) for the shallowest depth of field. If the light is too dark or bright in your test shots, adjust shutter speed or ISO, but not aperture 2. Dial in your exposure with test shots, lock down exposure, focus, white balance and any other variable 3. Frame your subject in the center, tightly but not too tight to allow for overlap and take their photo, take a few for best facial expression or pose 4. Standing in same position, shoot overlapping images to the left, right, top and bottom. Don't forget the corners, top right, top left, bottom right, bottom left, etc. Let the shots overlap. Ask your model to stand still during this process 5. More overlapping shots are better then not enough. It isn't unusual for 20-50 exposures to be used for 1 final image since you will need to crop the final image Slide 8: Photo Stitching The laborious photo stitching process is greatly streamlined with Adobe Photoshop's Photomerge feature. When you are done shooting, collect your images into a single folder and follow the class hand out to create your own Panoramic Photo Stitches using this automated process. Successful creation of a square or mostly square portrait, that shows wide angle with a shallow depth of field must be create for full credit. If you don't succeed the first time, research, problem solve and try again. The image above is shown before cropping, and not enough exposures for the full environment to be stitched. Slide 9: Car Photo The method can be used for many types of subjects, as the shallow depth of field brings emphasis to the subject. Think about what you could capture using this method for your own project. Slide 9: Brenizer Tomatoes Slide 10: This is the first image in a photo stitch of over 40 images. Click to see the next. This is the image at 100% scale… Slide 11: This is a photo stitched image of the Tilden Park Carousel visage in Oakland California. Image created by Photo instructor Seth Wilson in 2016. Over 40 exposures were stitched together manually in Adobe Photoshop. All images were shot with a 50mm lens on a Pentax K-50 dslr camera. The final image is over 4 Gigabytes in file size. Slide 12: Create your own! Time to go out and make your own! .
Recommended publications
  • Optics – Panoramic Lens Applications Revisited
    Panoramic Lens Applications Revisited Simon Thibault* M.Sc., Ph.D., Eng Director, Optics Division/Principal Optical Designer ImmerVision 2020 University, Montreal, Quebec, H3A 2A5 Canada ABSTRACT During the last few years, innovative optical design strategies to generate and control image mapping have been successful in producing high-resolution digital imagers and projectors. This new generation of panoramic lenses includes catadioptric panoramic lenses, panoramic annular lenses, visible/IR fisheye lenses, anamorphic wide-angle attachments, and visible/IR panomorph lenses. Given that a wide-angle lens images a large field of view on a limited number of pixels, a systematic pixel-to-angle mapping will help the efficient use of each pixel in the field of view. In this paper, we present several modern applications of these modern types of hemispheric lenses. Recently, surveillance and security applications have been proposed and published in Security and Defence symposium. However, modern hemispheric lens can be used in many other fields. A panoramic imaging sensor contributes most to the perception of the world. Panoramic lenses are now ready to be deployed in many optical solutions. Covered applications include, but are not limited to medical imaging (endoscope, rigiscope, fiberscope…), remote sensing (pipe inspection, crime scene investigation, archeology…), multimedia (hemispheric projector, panoramic image…). Modern panoramic technologies allow simple and efficient digital image processing and the use of standard image analysis features (motion estimation, segmentation, object tracking, pattern recognition) in the complete 360o hemispheric area. Keywords: medical imaging, image analysis, immersion, omnidirectional, panoramic, panomorph, multimedia, total situation awareness, remote sensing, wide-angle 1. INTRODUCTION Photography was invented by Daguerre in 1837, and at that time the main photographic objective was that the lens should cover a wide-angle field of view with a relatively high aperture1.
    [Show full text]
  • Depth-Aware Blending of Smoothed Images for Bokeh Effect Generation
    1 Depth-aware Blending of Smoothed Images for Bokeh Effect Generation Saikat Duttaa,∗∗ aIndian Institute of Technology Madras, Chennai, PIN-600036, India ABSTRACT Bokeh effect is used in photography to capture images where the closer objects look sharp and every- thing else stays out-of-focus. Bokeh photos are generally captured using Single Lens Reflex cameras using shallow depth-of-field. Most of the modern smartphones can take bokeh images by leveraging dual rear cameras or a good auto-focus hardware. However, for smartphones with single-rear camera without a good auto-focus hardware, we have to rely on software to generate bokeh images. This kind of system is also useful to generate bokeh effect in already captured images. In this paper, an end-to-end deep learning framework is proposed to generate high-quality bokeh effect from images. The original image and different versions of smoothed images are blended to generate Bokeh effect with the help of a monocular depth estimation network. The proposed approach is compared against a saliency detection based baseline and a number of approaches proposed in AIM 2019 Challenge on Bokeh Effect Synthesis. Extensive experiments are shown in order to understand different parts of the proposed algorithm. The network is lightweight and can process an HD image in 0.03 seconds. This approach ranked second in AIM 2019 Bokeh effect challenge-Perceptual Track. 1. Introduction tant problem in Computer Vision and has gained attention re- cently. Most of the existing approaches(Shen et al., 2016; Wad- Depth-of-field effect or Bokeh effect is often used in photog- hwa et al., 2018; Xu et al., 2018) work on human portraits by raphy to generate aesthetic pictures.
    [Show full text]
  • Hardware and Software for Panoramic Photography
    ROVANIEMI UNIVERSITY OF APPLIED SCIENCES SCHOOL OF TECHNOLOGY Degree Programme in Information Technology Thesis HARDWARE AND SOFTWARE FOR PANORAMIC PHOTOGRAPHY Julia Benzar 2012 Supervisor: Veikko Keränen Approved _______2012__________ The thesis can be borrowed. School of Technology Abstract of Thesis Degree Programme in Information Technology _____________________________________________________________ Author Julia Benzar Year 2012 Subject of thesis Hardware and Software for Panoramic Photography Number of pages 48 In this thesis, panoramic photography was chosen as the topic of study. The primary goal of the investigation was to understand the phenomenon of pa- noramic photography and the secondary goal was to establish guidelines for its workflow. The aim was to reveal what hardware and what software is re- quired for panoramic photographs. The methodology was to explore the existing material on the topics of hard- ware and software that is implemented for producing panoramic images. La- ter, the best available hardware and different software was chosen to take the images and to test the process of stitching the images together. The ex- periment material was the result of the practical work, such the overall pro- cess and experience, gained from the process, the practical usage of hard- ware and software, as well as the images taken for stitching panorama. The main research material was the final result of stitching panoramas. The main results of the practical project work were conclusion statements of what is the best hardware and software among the options tested. The re- sults of the work can also suggest a workflow for creating panoramic images using the described hardware and software. The choice of hardware and software was limited, so there is place for further experiments.
    [Show full text]
  • 151 Australasian Journal of Information Systems Volume 13 Number 2 May 2006
    AN EXPLORATION OF USER INTERFACE DESIGNS FOR REAL-TIME PANORAMIC PHOTOGRAPHY Patrick Baudisch, Desney Tan, Drew Steedly, Eric Rudolph, Matt Uyttendaele, Chris Pal, and Richard Szeliski Microsoft Research One Microsoft Way Redmond, WA 98052, USA Email: {baudisch, desney, steedly, erudolph, mattu, szeliski}@ microsoft.com pal@ cs.umass.edu ABSTRACT Image stitching allows users to combine multiple regular-sized photographs into a single wide-angle picture, often referred to as a panoramic picture. To create such a panoramic picture, users traditionally first take all the photographs, then upload them to a PC and stitch. During stitching, however, users often discover that the produced panorama contains artifacts or is incomplete. Fixing these flaws requires retaking individual images, which is often difficult by this time. In this paper, we present Panoramic Viewfinder, an interactive system for panorama construction that offers a real-time preview of the panorama while shooting. As the user swipes the camera across the scene, each photo is immediately added to the preview. By making ghosting and stitching failures apparent, the system allows users to immediately retake necessary images. The system also provides a preview of the cropped panorama. When this preview includes all desired scene elements, users know that the panorama will be complete. Unlike earlier work in the field of real-time stitching, this paper focuses on the user interface aspects of real-time stitching. We describe our prototype, individual shooting modes, and provide an overview of our implementation. Building on our experiences with Panoramic Viewfinder, we discuss a separate design that relaxes the level of synchrony between user and camera required by the current system and provide usage flexibility that we believe might further improve the user experience.
    [Show full text]
  • Download a Sample
    Copyright ©2017 Hudson Henry All rights reserved. First edition, November 2017 Publisher: Rick LePage Design: Farnsworth Design Published by Complete Digital Photography Press Portland, Oregon completedigitalphotography.com All photography ©Hudson Henry Photography, unless otherwise noted. PANORAMAS MADE SIMPLE How to create beautiful panoramas with the equipment you have—even your phone By Hudson Henry Complete Digital Photography Press Portland, Oregon TABLE OF CONTENTS PREFACE MY PASSION FOR PANORAMAS 1 3 CAPTURING THE FRAMES 26 How is this book organized? Lens selection Exposure metering 1 AN INTRODUCTION TO PANORAMIC PHOTOGRAPHY 5 Use a tripod, Where Possible Go wide and with more detail The importance of being level Simple Panoramas Defined Orient your camera vertically Not all panoramas are narrow slices (most of the time) Equipment for simple panoramas Focus using live view Advanced panoramas Beware of polarizers or graduated filters Marking your panoramas 2 THINKING ABOUT LIGHT, FOCUS AND SETUP 12 Compose wide and use lots of overlap Light and composition: the rules still apply Move quickly and carefully Watch out for parallax Finding the infinity distance 4 ASSEMBLING YOUR PANORAMA 35 Learning how to lock your camera settings My workflow at a glance Why shouldn’t I use my phone’s Building Panoramas with automatic panorama mode? Lightroom Classic CC Why is manual exposure so important? Working with Photoshop CC to create panoramas Building Panoramas in ON1 Photo Raw 2018 5 RESOURCES 52 PREFACE MY PASSION FOR PANORAMAS My frst panorama, I GREW UP WITH ADVENTURESOME EXTENDED FAM- with image quality. Like many similar photographers, I created from three ILY MEMBERS WHO LOVED TRAVELING, CLIMBING, AND shifted to medium-format film for the bigger frame and frames of medium- format flm.
    [Show full text]
  • Portraiture, Surveillance, and the Continuity Aesthetic of Blur
    Michigan Technological University Digital Commons @ Michigan Tech Michigan Tech Publications 6-22-2021 Portraiture, Surveillance, and the Continuity Aesthetic of Blur Stefka Hristova Michigan Technological University, [email protected] Follow this and additional works at: https://digitalcommons.mtu.edu/michigantech-p Part of the Arts and Humanities Commons Recommended Citation Hristova, S. (2021). Portraiture, Surveillance, and the Continuity Aesthetic of Blur. Frames Cinema Journal, 18, 59-98. http://doi.org/10.15664/fcj.v18i1.2249 Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/15062 Follow this and additional works at: https://digitalcommons.mtu.edu/michigantech-p Part of the Arts and Humanities Commons Portraiture, Surveillance, and the Continuity Aesthetic of Blur Stefka Hristova DOI:10.15664/fcj.v18i1.2249 Frames Cinema Journal ISSN 2053–8812 Issue 18 (Jun 2021) http://www.framescinemajournal.com Frames Cinema Journal, Issue 18 (June 2021) Portraiture, Surveillance, and the Continuity Aesthetic of Blur Stefka Hristova Introduction With the increasing transformation of photography away from a camera-based analogue image-making process into a computerised set of procedures, the ontology of the photographic image has been challenged. Portraits in particular have become reconfigured into what Mark B. Hansen has called “digital facial images” and Mitra Azar has subsequently reworked into “algorithmic facial images.” 1 This transition has amplified the role of portraiture as a representational device, as a node in a network
    [Show full text]
  • Panorama Photography by Andrew Mcdonald
    Panorama Photography by Andrew McDonald Crater Lake - Andrew McDonald (10520 x 3736 - 39.3MP) What is a Panorama? A panorama is any wide-angle view or representation of a physical space, whether in painting, drawing, photography, film/video, or a three-dimensional model. Downtown Kansas City, MO – Andrew McDonald (16614 x 4195 - 69.6MP) How do I make a panorama? Cropping of normal image (4256 x 2832 - 12.0MP) Union Pacific 3985-Andrew McDonald (4256 x 1583 - 6.7MP) • Some Cameras have had this built in • APS Cameras had a setting that would indicate to the printer that the image should be printed as a panorama and would mask the screen off. Some 35mm P&S cameras would show a mask to help with composition. • Advantages • No special equipment or technique required • Best (only?) option for scenes with lots of movement • Disadvantages • Reduction in resolution since you are cutting away portions of the image • Depending on resolution may only be adequate for web or smaller prints How do I make a panorama? Multiple Image Stitching + + = • Digital cameras do this automatically or assist Snake River Overlook – Andrew McDonald (7086 x 2833 - 20.0MP) • Some newer cameras do this by “sweeping the camera” across the scene while holding the shutter button. Images are stitched in-camera. • Other cameras show the left or right edge of prior image to help with composition of next image. Stitching may be done in-camera or multiple images are created. • Advantages • Resolution can be very high by using telephoto lenses to take smaller slices of the scene
    [Show full text]
  • FULL PROGRAM A-4 Printable Format
    A SPECIAL THANK YOU TO: OUR SPONSORS INSTITUTIONS AND INDIVIDUALS FOR THEIR CONTRIBUTIONS New York Public Library for the Performing Arts New York Public Library, Barbara Goldsmith ConservaIon Lab The James B. Duke House of The InsItute of Fine Arts, New York University The Metropolitan Museum of Art, Department of Photograph ConservaIon Museum of Modern Art, The David Booth ConservaIon Department Laumont Photographics Alison Rossiter, ArIst Adam Fuss, ArIst ORGANIZING COMMITTEES Heather Brown, AIC Photographic Materials Group Secretary/Treasurer TaIana Cole AIC, Photographic Materials Group Program Chair Diana Diaz, ICOM-CC Photographic Materials Working Group Coordinator Jessica Keister, NYC Local Planning Team Coordinator Barbara Lemmen, AIC Photographic Materials Group Chair Saori Kawasumi Lewis, AIC Photographic Materials Group Secretary/Treasurer Ruth Seyler, AIC MeeIngs & Advocacy Director Barbara Brown, ICOM-CC Photographic Materials Working Group Assistant Coordinator Susie Clark, ICOM-CC Photographic Materials Working Group Assistant Coordinator Lee Ann Daffner, NYC Local Planning Team EsIbaliz Guzman, ICOM-CC Photographic Materials Working Group Assistant Coordinator Marc Harnly, ICOM-CC Photographic Materials Working Group Assistant Coordinator Greg Hill, ICOM-CC Photographic Materials Working Group Assistant Coordinator MarIn Jürgens, ICOM-CC Photographic Materials Working Group Assistant Coordinator Natasha Kung, NYC Local Planning Team Krista Lough, NYC Local Planning Team Mark Strange, ICOM-CC Photographic Materials Working Group Assistant Coordinator Elsa Thyss, NYC Local Planning Team TABLE OF CONTENTS Program of Talks in Summary . 1 Speakers, Authors, & Abstracts Wednesday, Feb. 20th . 3 Thursday, Feb. 21st . 13 Friday, Feb. 22nd . 24 Session Chairs . 30 Workshops . 30 Tours Tuesday, Feb. 19th . 32 Wednesday and Thursday, Feb. 20th and 21st .
    [Show full text]
  • Using Depth Mapping to Realize Bokeh Effect with a Single Camera Android Device EE368 Project Report Authors (SCPD Students): Jie Gong, Ran Liu, Pradeep Vukkadala
    Using Depth Mapping to realize Bokeh effect with a single camera Android device EE368 Project Report Authors (SCPD students): Jie Gong, Ran Liu, Pradeep Vukkadala Abstract- In this paper we seek to produce a bokeh Bokeh effect is usually achieved in high end SLR effect with a single image taken from an Android device cameras using portrait lenses that are relatively large in size by post processing. Depth mapping is the core of Bokeh and have a shallow depth of field. It is extremely difficult effect production. A depth map is an estimate of depth to achieve the same effect (physically) in smart phones at each pixel in the photo which can be used to identify which have miniaturized camera lenses and sensors. portions of the image that are far away and belong to However, the latest iPhone 7 has a portrait mode which can the background and therefore apply a digital blur to the produce Bokeh effect thanks to the dual cameras background. We present algorithms to determine the configuration. To compete with iPhone 7, Google recently defocus map from a single input image. We obtain a also announced that the latest Google Pixel Phone can take sparse defocus map by calculating the ratio of gradients photos with Bokeh effect, which would be achieved by from original image and reblured image. Then, full taking 2 photos at different depths to camera and defocus map is obtained by propagating values from combining then via software. There is a gap that neither of edges to entire image by using nearest neighbor method two biggest players can achieve Bokeh effect only using a and matting Laplacian.
    [Show full text]
  • 19Th Century Photograph Preservation: a Study of Daguerreotype And
    UNIVERSITY OF OKLAHOMA PRESERVATION OF INFORMATION MATERIALS LIS 5653 900 19th Century Photograph Preservation A Study of Daguerreotype and Collodion Processes Jill K. Flowers 3/28/2009 19th Century Photograph Preservation A Study of Daguerreotype and Collodion Processes Jill K. Flowers Photography is the process of using light to record images. The human race has recorded the images of experience from the time when painting pictographs on cave walls was the only available medium. Humanity seems driven to transcribe life experiences not only into language but also into images. The birth of photography occurred in the 19th Century. There were at least seven different processes developed during the century. This paper will focus on two of the most prevalent formats. The daguerreotype and the wet plate collodion process were both highly popular and today they have a significant presence in archives, libraries, and museums. Examination of the process of image creation is reviewed as well as the preservation and restoration processes in use today. The daguerreotype was the first successful and practical form of commercial photography. Jacques Mande‟ Daguerre invented the process in a collaborative effort with Nicephore Niepce. Daguerre introduced the imaging process on August 19, 1839 in Paris and it was in popular use from 1839 to approximately 1860. The daguerreotype marks the beginning of the era of photography. Daguerreotypes are unique in the family of photographic process, in that the image is produced on metal directly without an intervening negative. Image support is provided by a copper plate, coated with silver, and then cleaned and highly polished.
    [Show full text]
  • Evolution of Photography: Film to Digital
    University of North Georgia Nighthawks Open Institutional Repository Honors Theses Honors Program Fall 10-2-2018 Evolution of Photography: Film to Digital Charlotte McDonnold University of North Georgia, [email protected] Follow this and additional works at: https://digitalcommons.northgeorgia.edu/honors_theses Part of the Art and Design Commons, and the Fine Arts Commons Recommended Citation McDonnold, Charlotte, "Evolution of Photography: Film to Digital" (2018). Honors Theses. 63. https://digitalcommons.northgeorgia.edu/honors_theses/63 This Thesis is brought to you for free and open access by the Honors Program at Nighthawks Open Institutional Repository. It has been accepted for inclusion in Honors Theses by an authorized administrator of Nighthawks Open Institutional Repository. Evolution of Photography: Film to Digital A Thesis Submitted to the Faculty of the University of North Georgia In Partial Fulfillment Of the Requirements for the Degree Bachelor of Art in Studio Art, Photography and Graphic Design With Honors Charlotte McDonnold Fall 2018 EVOLUTION OF PHOTOGRAPHY 2 Acknowledgements I would like thank my thesis panel, Dr. Stephen Smith, Paul Dunlap, Christopher Dant, and Dr. Nancy Dalman. Without their support and guidance, this project would not have been possible. I would also like to thank my Honors Research Class from spring 2017. They provided great advice and were willing to listen to me talk about photography for an entire semester. A special thanks to my family and friends for reading over drafts, offering support, and advice throughout this project. EVOLUTION OF PHOTOGRAPHY 3 Abstract Due to the ever changing advancements in technology, photography is a constantly growing field. What was once an art form solely used by professionals is now accessible to every consumer in the world.
    [Show full text]
  • AG-AF100 28Mm Wide Lens
    Contents 1. What change when you use the different imager size camera? 1. What happens? 2. Focal Length 2. Iris (F Stop) 3. Flange Back Adjustment 2. Why Bokeh occurs? 1. F Stop 2. Circle of confusion diameter limit 3. Airy Disc 4. Bokeh by Diffraction 5. 1/3” lens Response (Example) 6. What does In/Out of Focus mean? 7. Depth of Field 8. How to use Bokeh to shoot impressive pictures. 9. Note for AF100 shooting 3. Crop Factor 1. How to use Crop Factor 2. Foal Length and Depth of Field by Imager Size 3. What is the benefit of large sensor? 4. Appendix 1. Size of Imagers 2. Color Separation Filter 3. Sensitivity Comparison 4. ASA Sensitivity 5. Depth of Field Comparison by Imager Size 6. F Stop to get the same Depth of Field 7. Back Focus and Flange Back (Flange Focal Distance) 8. Distance Error by Flange Back Error 9. View Angle Formula 10. Conceptual Schema – Relationship between Iris and Resolution 11. What’s the difference between Video Camera Lens and Still Camera Lens 12. Depth of Field Formula 1.What changes when you use the different imager size camera? 1. Focal Length changes 58mm + + It becomes 35mm Full Frame Standard Lens (CANON, NIKON, LEICA etc.) AG-AF100 28mm Wide Lens 2. Iris (F Stop) changes *distance to object:2m Depth of Field changes *Iris:F4 2m 0m F4 F2 X X <35mm Still Camera> 0.26m 0.2m 0.4m 0.26m 0.2m F4 <4/3 inch> X 0.9m X F2 0.6m 0.4m 0.26m 0.2m Depth of Field 3.
    [Show full text]