47th Annual Convention
Virtual 3D-Con 2021 — August 12-15

Workshops and SIGs (Special Interest Groups)

Workshops are 20 minute informative and educational sessions given by Convention attendees on a variety of 3D topics, followed by Q&A. Workshops are open to all registered attendees.
Special Interest Group meetings (aka "Birds of a Feather") are groups of enthusiasts getting together to discuss particular topics of interest such as 3D on Social Media, Virtual Reality, View-Master, and stereo cards. SIGs are open to all registered attendees.

Thursday August 12th

Beginner's Guide to StereoPhoto Maker

2:00PM - 2:30PM PDT
Presenter: David Starkman

This workshop will introduce the basic features of StereoPhoto Maker for those who have never used the program before, or have found it difficult to get started. The basics will include how to open separate left & right images or .MPO files from stereo cameras, such as the Fuji W3, and how to align them for the most comfortable viewing.
Workshop Notes

How to Take Closeups in 3D

2:30PM - 3:00PM PDT
Presenter: George Themelis

This workshop will address the following questions: What is a close-up photograph? Why take close-ups? What are the challenges in 2D and 3D? What equipment should I use? We will describe seven techniques to record close-ups in 3D with recommendations and examples of pictures taken with them.
Workshop Notes

View-Master SIG

3:30PM - 4:30PM PDT
Moderator: Wolfgang Sell

The VM SIG meeting has been a fixture at the NSA convention for many years. We'll have news about View-Master collecting, remind everyone of the great work Image3D is doing, and even see a small presentation about View-Master. This year we remember Mary Lewis View-Master clay figure artist and take a look at Richard Wiley's View-Master advertising art. Come join us!

Virtual Reality SIG

5:00PM - 6:00PM PDT
Moderators: Jim Harp and Dave Comeau

Wouldn’t it be something if six million high resolution digital stereoscopes capable of displaying almost any form of 3D image, video or computer model ended up in the hands of consumers worldwide? The growing popularity of Virtual Reality headsets such as the Oculus Quest and the Valve Index have created amazing opportunities for all of us. This Special Interest Group will have something for everyone, from the complete novice to the experienced VR enthusiast. We’ll start with a discussion of relevant Virtual Reality products, platforms and applications and then explore some 3D galleries and VR environments of particular interest to 3D photographers in Altspace. This will all be simulcast on Zoom, so you don’t need a headset to participate.
If you have any questions you'd like us to cover, or would like to participate, please email us before the event at .

Friday August 13th

Stereo Card Makers SIG

12:00PM - 1:00PM PDT
Presenter: Steve Hughes

This meeting is for people interested in making stereo cards. Topics open for discussion include materials, and where to find them, techniques for making cards, tools to make making cards easier, artistic considerations, archival quality of materials and anything else that people who make stereo cards, or want to start making them, feel like talking about. Anyone who has specific questions about any aspect of card making is encouraged follow up with me, (via ), and I will try to make sure we talk about them. We will also talk about ways of sharing the cards you make with others.

Doggy and Kiddy Phantograms

3:30PM - 4:00PM PDT
Presenter: Barry Rothstein

Phantograms offer a unique and immersive perspective on 3-D imagery, seeking to visually recreate reality by reversing the effects of perspective. In this workshop we'll show you how to take phantogram photos of your pets or kids. All you need is a stereo camera or synchronized pair, and we'll show you how to prepare the images in Stereo Photo Maker and Photoshop.
Workshop Notes
Workshop Notes

Burning and Dodging in Photoshop to enhance your 3D Vision

4:00PM - 4:30PM PDT
Presenter: Jim Swallow

Burning and dodging an image has been around since the beginning of the darkroom and is an essential part of creating a pleasing image that helps to draw the viewer deeper into the image. Burning and dodging an image can also enhance the 3D effect by lightening and darkening certain areas. We'll discuss using burning and dodging techniques in Photoshop, using light and dark areas to enhance the image and draw attention to parts of the image in a creative way.
Workshop Notes

3D on Social Media SIG

5:00PM - 6:00PM PDT
Moderator: Gordon Au

How best to share and experience 3D online is an issue crucial to the survival of 3D, and at its forefront today is how to do so on social media. For this SIG, Gordon Au moderates Q & A and discussions featuring a panel with experience not only in social media, but also in PR, group organizing, web design, platform creation, and more. We will discuss pros and cons of different platforms, best practices, newcomer advice, how to build followings, and more, in a talk that should be of interest and use for everyone from social media newbie to 3D club organizer!
SIG Notes

Saturday August 14th

Making a Simple Stereocard

9:00AM - 9:30AM PDT
Presenters: Steve and Suzanne Hughes

This workshop will show how to make a simple stereocard using a minimum of tools and materials you can buy at any local big-box store. We will show you how easy it can be to produce a stereo image that can be viewed with a wide range of viewers manufactured as far back as 1859 or as recently as today.
Workshop Notes

Creating Stereoscopic Galleries in VR

9:30AM - 10:00AM PDT
Presenter: Jim Harp

Virtual Reality headsets such as the OculusQuest have put high quality digital stereo viewers into the hands of millions of potential new fans ofyour 3D work. This workshop will demonstrate how to use the Unity platform to present Stereoscopic and immersive photography and artwork in VR platforms such as Altspace VR, or in dedicated apps. While this is too complex to thoroughly cover in 30 minutes, the tools and techniques required will be demonstrated, and templates and links for further study will be provided.

Stereo Imagery on the Looking Glass

12:00PM - 12:30PM PDT
Presenter: Dave Comeau

A new, affordable display allows us to easily create digital lenticular images in our own homes. We'll discuss how to bring stereoscopic content into the Looking Glass Factory's Looking Glass Portrait. We'll quickly cover how to use software provided by the company, and look at other free tools such as many options in StereoPhoto Maker and Masuji Suto's web tools. We'll also discuss how to create stereo videos using the series photographs taken for use in the Looking Glass. You do not need to own a Looking Glass to attend; many of the techniques and concepts discussed can be used for creation of traditional lenticular images or stereo pairs.

3D Moviemaking with Magix

12:30PM - 1:00PM PDT
Presenter: Greg Perez

This workshop is a beginner’s guide to the basic techniques of making 3D videos. It will cover making shows using still images and how to link twin rig film clips or two independent movie cameras.

3D Phones and Tablets SIG

3:30PM - 4:30PM PDT
Moderators: Andrea Shetley and Tom Dory

This SIG is for showing and discussing various glasses-free 3D phones (for viewing and/or photographing) and tablets, and associated hardware, apps, and viewers. We will discuss how to make 3D images on your regular smartphone and take a look at the new Looking Glass Portrait viewing display. Bring your phones and tablets to this virtual meeting! This is an open discussion format to ask questions, share information, and give tips.

Sunday August 15th

Medium Format Film 3D SIG

10:30PM - 11:30PM PDT
Moderators: Steven Lederman and Ian Andvaag

Are you interested in immersive, ultra-realistic stereo photography? We'll provide a brief introduction to the wonderful world of medium format stereo imagery (MF3D) and we'll showcase some weird and wonderful cameras and viewers. Participants are encouraged to bring their equipment to show off in the open discussion format of the second half. All are welcome - those who are curious about the format, and those who have been shooting for decades. Unfortunately, we aren't able to exhibit actual MF3D slides in person this year, but this is a great opportunity to meet some MF3D-ers and learn some tips from each other.

Artificial Intelligence and 3D

12:00PM - 12:30PM PDT
Presenter: Gordon Au

Many modern developments in AI deal with the 3rd dimension, from self-driving cars that perceive and navigate their environments in 3D, to programs that can build 3D models of scenes simply by analyzing 2D videos of them. Though some of these AIs are only accessible to researchers and tech companies, some AI applications like upscaling images or colorizing black and white photos are immediately useful and available to all. This workshop will show you how to use AIs of special interest to stereographers, via the free tool Google Colab, to do things like: create depth maps and stereopairs from single images, change the depth of stereopairs, and create videos and stereovideos.

Workshop notes (external page- goes live Sunday August 15th)

3D using Webcam/Raspberry Pi

12:30PM - 1:00PM PDT
Presenter: Dr. Guenter Pomaska

This workshop will delve into the fascinating world of tabletop photography using Raspberry Pi and USB cameras. We'll discuss the benefits of using USB cameras, how to set camera and exposure settings, focus bracketing, and step motor driven base bracketing. A supplementary gallery will be available to view stereo images created using this process, featuring collectibles from the seventies TV series Captain Scarlet.
Workshop Notes


David Starkman
David Starkman, along with his partner Susan Pinsky, ran Reel 3-D Enterprises, selling 3-D Supply to 3-D photographers and enthusiasts from 1978 to 2005. He is a past President of The Stereo Club of Southern California (now the LA3DClub), and has been a member of that club since 1977. He is a Contributing Editor to the National Stereoscopic Association's "Stereo World" magazine, and is currently doing what he can to help Susan with her "3-D Legends."
web site: www.3DLegends.com

George Themelis
George Themelis (DrT) discovered stereo photography with a Stereo Realist and joined NSA in 1988. In 1997 he co-founded the Ohio Stereo Photographic Society (OSPS) in Cleveland. George has enjoyed writing Tutorials as the Editor of the OSPS newsletter "Stereogram" for 22 years, and is the newly appointed Editor of ISU's "Stereoscopy." He deals with stereo equipment and supplies for stereo photography at drt3d.com and ebay. He also takes plenty of stereo pictures. His favorite subjects are nature, people and travel. His equipment includes a Fuji W3, a Panasonic 3D1, a Panasonic 3D lens, and a variety of twin cameras. Some of the techniques he uses: Macro / close-ups, hyperstereos, telestereophotography and flash photography.

Jim Harp
Jim Harp bought a Loreo camera from Reel-3D shortly after the birth of his first daughter Beverly in 1995. He has been enthusiastically exploring stereoscopic and immersive imagery ever since. Current interests include VR180 and 3D 360º, Medium Format and VR app development in Unity. Jim trained as a drummer/percussionist and when conditions permit keeps busy playing and programming electronic music systems for theater.

David Comeau
Based in Brooklyn, New York, Dave is a stereographer, hacker, reverse engineer, and futurist.  He grew up with a fascination for View-Masters, and rediscovered 3D in 2001 when he realized in a dream that digital stereo video was easily achievable.  In 2010 his contributions led to Star Wars Uncut winning an Emmy award (scene 458/473!)  Currently he is Secretary of the New York Stereoscopic Association, and probes the digital beyond through experimentation in Virtual Reality, XR, photogrammetry, and brain hacking.

Steve Hughes

When Steve was in the second grade, he found a book on his grandfather’s bookshelf called '101 Things Any Boy Can Make' that had a chapter on learning how to free view stereo cards and how to draw them. He was fascinated by the examples in the book and learned to draw his own cards. It turned into a lifelong interest. When he found out about the existence of other people who shared his interests, he joined the NSA and became active in the organization giving workshops and participating in competitions.

Over the years he has produced all forms of 3D, often manufacturing his own 3D equipment, but his first love remains making stereo cards.

Barry Rothstein

Hi. My name is Barry Rothstein, and I'm known to be "the phantogram guy." I saw my first phantograms at the 2004 NSA convention in Portland, Oregon. Steve Hughes exhibited a couple and provided the NSA's first phantogram workshop. Terry Wilson showed and sold her line of phantogram note cards, beautiful flower images, and a mushroom phantogram I bought.

Like all of you I fell in love with 3-D.  I'm especially fascinated by phantograms.

A phantogram is an attempt to visually re-create reality, to imitate normal vision.  It's key component is in the way the images are cropped to reverse the effects of perspective.  Given a point of view and a precisely defined stereo window, I strive to give the eyes what they'd get in real life.

A phantogram is most typically viewed from an angle and not straight on.  It's shot at an angle relative to a reference frame (stereo window).  Some people claim they always should be shot from a 45 degree angle.  Owen Western calls them "phantoglyphs" and shoots from 30 degrees.  I choose to shot them from practically any angle, mostly looking for a visual moment I find pleasing to my eyes.

Jim Swallow
Jim Swallow is a professional photographer in St Petersburg Florida with over 40 years of professional experience. He has been creating stereo images for the past 12 years and more seriously for the past 4 years. Jim has worked in Photoshop for the past 25 years. The techniques he will share are simple and easy and can turn an ordinary image into a more interesting image in mere minutes. Creating a compelling 3D photograph is about having elements in the foreground, mid-ground and background, but is also about light and shadow. Jim is going to show you how to add light and shadow to images to aid in the 3d experience.

Greg Perez
Greg Perez has been photographing in stereo since the early 80's and has recently taken up VR. He is a long time member of NSA and the Puget Sound Stereo Camera Club. He is now retired and living near Wichita Kansas. He is currently co-chair of 3D-Con 2022.

Gordon Au
Gordon is an avid stereographer and 3D experimenter/tinkerer, making stereophotos, stereovideos, anaglyphs, extractions, and conversions, drawing upon a variety of sources, including TV and film, artwork, NASA data, found footage, and more. His experiments include catadioptric stereos, artificial intelligence, slices and shapes, asymmetric framing, video panning / zooming of 3D stills, x‑rays and fog as depth map sources, and more. Gordon is a proud member of and have presented and/or written for the NSA, ISU, New York Stereoscopic Association, Virtual Stereoscopic Community, and LA3D Club.

Dr. Guenter Pomaska
Dr. Guenter Pomaska worked for many years in the fields of photogrammetry and application software development and support. He was teaching computer graphics and related topics in higher education institutes. After retirement he became a member of DGS and ISU and directed his activities into special applications of stereoscopy.

PARALLEL View. Change to Cross View

A packed workshop at 3D-Con 2012 for "Alioscopy Trigger in Adobe Photoshop CS6 for Auto-stereoscopic 3D Display" by Pia Maffei and Doug Betzold. Stereo by John Dennis.