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Free Photography Critiques

Tuesday, July 26

5 – 6pm MDT
7 – 8pm EDT
12 – 1am BST (Friday, July 8)
9 – 10am AEST (Friday, July 8)

Masters: David Chidley, Gordon Wiltsie and Cathy Simone


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SAVE AT LEAST $26 every month! Members always attend events for FREE. Plus, you will gain access to event recordings and the online Mastrius Community Chat.

JOIN Mastrius Master Photographers David Chidley, Gordon Wiltsie, and Cathy Simone for a LIVE photography panel exploring the elusive DECISIVE MOMENT! 

The Master panel will talk about finding that “Decisive Moment” when every part of a picture comes together—perhaps for less than a second—turning a good picture into a great one. 

Each master will explore the concept using their own photography and unique approaches to capturing moments. They’ll look at how to anticipate or plan amazing photos and the patience, anticipation, and readiness required to capture one. 

The Masters will also critique selected photos pre-submitted by event participants, highlighting further elements to consider in timing when to press the shutter.

They will answer big questions, like:

  • What is the Decisive Moment and why is it important?
  • What kinds of subjects lend themselves to unique moments?
  • How can you prepare to capture stand-out moments?


🚩 Tickets are FREE for everyone


  • Want to get LIVE feedback from Dave, Gordon, and Cathy on YOUR photography? Click here to submit your artwork.
  • Five photos will be selected to receive live critique by Mastrius Master Photographers during this event (photographer MUST be in attendance).

🎙️  Event recording available for Mastrius members only

Meet Gordon Wiltsie


Gordon Wiltsie is a prolific storyteller, artist and explorer who has conceived and documented scores of expeditions to some of the world’s remotest locations, including previously unexplored wilderness regions of Antarctica, the Arctic, the Himalaya, Central Asia and South America. The Explorers Club recently cited him as one of the leading expedition photographers of his generation and for more than 45 years his pictures in magazines ranging from the original Mountain Gazette, the earliest issues of Outside and later numerous features for National Geographic have helped to inspire the modern outdoor lifestyle and appreciation for protecting our planet’s special places and peoples.

Gordon strives for technical excellence, whether indoors or out, and has developed a keen eye for architecture, events and advertising for a broad variety of clients. He’s a captivating speaker and a patient and gifted teacher who loves sharing his experience with aspiring and emerging photographers.

Gordon’s pictures have appeared in hundreds of publications, postcards, calendars and posters, and he is well-known for his assignment photography for outdoor companies like The North FacePatagonia and Nike as well as non-profits such as the American Himalayan FoundationAmerican Prairie ReserveSierra Club and Greater Yellowstone Coalition. He has photographed several books and is the author of “To the Ends of the Earth – The Adventures of an Expedition photographer.” He is the father of two grown sons and lives near Half Moon Bay, California, with his wife and partner Meredith.

Learn more about Gordon

Meet David Chidley


David Chidley has been shooting professionally for nearly forty years, having worked at newspapers in Toronto, Calgary and London. He is now a freelancer primarily for The Canadian Press but also for a wide range of editorial, marketing and commercial clients, including the Toronto StarThe Globe and MailNational Post, and Western University.

A diverse commercial and corporate cliental has broadened Dave’s expertise, working in the studio and in the field.

Working in high-pressure situations, on deadline, and in once-in-a-lifetime, situations has made Dave an efficient and confident photographic image-maker. Being at the Olympics, in front of a tiger in the Jungles of India, or documenting social issues in Africa, good design and creativity will always make better images. Dave strives to do that everyday and loves to inspire others to do the same.

Teaching, workshops and photography travel guiding has become a large part of Dave’s working world. Dave has a decade of adjunct professor teaching experience in the Digital Photography program at Lambton College in Sarnia, and at Conestoga College in Kitchener, Ontario.

Having taught over a dozen varied courses, from The History of Photography and Art; to Design and Composition; to Portfolio Development and Commercial Photography, Dave has the experience to foster creativity and expertise from a diverse range of students’ interests.

Creativity and artistic approaches are a hallmark of Dave’s imagery regardless of the subject matter.

  • Winner of three National Newspaper Awards, Canada’s top journalism award
  • Four-time winner of the Eastern and Western Canadian News Photographer of the Year awards.

His goal is to foster seeing and believing Photographic art, be it in documenting the world around us, in foreign exotic lands or in your backyard and most of all, to enjoy the experience.

Learn more about David

Meet Cathy Simone

Photographic Illustrator | Photoshop Artist | Creative Consultant

Cathy Simone is a photographer and Photoshop artist born and raised in Calgary, Alberta.

25+ years of industry experience has allowed the opportunity of fantastic collaborations with talented photographers, dedicated designers, and inspiring artists who exhibit internationally.

Cathy’s fine art equine photography visually expresses and creatively explores quintessential nature to engage audience and evoke emotional response. Her collection of poetic narratives represents passion and respect for the art of photography, and celebrates life, liberty, and freedom.

Photography is a powerful medium of evocative memory, visual communication, and receptive creativity – a unique representation of individual vision & voice. Photographic process is essential in elevating initial capture to an extraordinary photograph.

Cathy’s diverse knowledge of photography, process, print, and presentation, in both digital and analogue mediums, is relative to all photographic disciplines and every individual’s unique, creative vision.

As an educator, Cathy welcomes sharing experience – whether challenge or success – with student, colleague, and community. She has been an instructor and mentor from 2006 to present, teaching at the Alberta University of the Arts – Bachelor of Design, Photography.

Further experience includes Photoshop & publishing courses taught at the Southern Alberta Institute of Technology. In addition to multiple guest speaker invitations, she has also hosted numerous workshops and seminars within the photographic community- embracing all of the wonderful opportunities to teach, share, and learn with each other.

Cathy continues to foster relationships with alumni and former students, affirming her dedication and commitment to their personal and professional development, future aspirations, and artistic endeavours.

“My ambition is to share knowledge & wisdom, professional expertise & craftsmanship, creativity & visual expression, with those who have passion for photography and process.”

Learn more about Cathy

Event Details

Date: July 26, 2022

Start time: 05:00 p.m. MDT

End time: 06:00 p.m. MDT

Venue: Online