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About Geoff Powell

Geoff is a passionate photographer and teacher. His involvement with photography goes back to the early 80s when he was inspired by the American photographer Duane Michals. Later in life, Geoff returned to obtain formal qualifications and found himself teaching photography for 5 years at Sunchine Coast TAFE. After that, he starfted iTeachPhotographers, with the goal of creating a worldwide online photography community.

The Ultimate Real World Guide to Depth of Field

The Ultimate "Real World" guide to depth of field. Anyone with anything more than a passing interest in photography knows that the aperture controls depth of field in photography. But that is anything but the full story. Did you know that there are three other measurable things that affect depth of field? – Focal Length, Focussing Distance & Sensor Size – and one unmeasurable one (how far away the background is). Are these incontestable facts? No, not really. There are several ways of looking at this subject, and according to an extremely technical viewpoint, focal length doesn’t in fact [...]

By |2018-12-23T08:25:39+10:00September 6th, 2017|Categories: Beginner's Photography, shooting techniques|Tags: , , , |4 Comments

The Internet is evolving.. Have you heard of Konversai?

Konversai is an interesting new concept on the Interwebs. Their slogan is "Let's Talk... on live video about anything, with anyone, anywhere" What an awesome concept. Being a photographer and educator, I already have an online presence, but I'm always looking for ways to leverage the power of the Internet to connect with more people. I am developing online courses as we speak, but that is an arduous and expensive process. Konversai's idea is to link people together. Nothing new there you might say. No, there's great money and awesome service if you can do that successfully. Look at airbnb as an example. [...]

By |2017-04-19T13:17:50+10:00April 19th, 2017|Categories: Online Delivery, Teaching|0 Comments

Smart phones damage visual literacy

Photography has never been more popular. It is absolutely everywhere these days as virtually everyone has a camera! There are plenty of digital SLRs out there, as well as whole new families of advanced and mirrorless compacts. But the vast majority of the world's cameras are in fact smart phone cameras. Point and shoot monsters have re-taken the world. Just when photography was going through an amazing resurgence thanks to digital photography, another side of technology has reared up and threatens to snatch it all away. I think it would be a good time to look at what the ubiquitous smartphone has [...]

Camera modes

There are many camera modes, but the four modes that are found on all cameras above basic point and shoots are P, AV (or S), TV (or T) & M. These are Program, Aperture Priority, Shutter Priority and Manual. Let's look at these four modes in detail, when they are best used, and their pros and cons. When I undertook my Diploma in Photography, all the teachers advocated using ONLY Manual. I was already very comfortable with a  camera in my hand at the time, so it caused me no issues, but I thought it a slightly strange approach nonetheless. [...]

By |2016-10-22T15:15:32+10:00August 8th, 2016|Categories: Beginner's Photography, Cameras, Exposure, shooting techniques, Teaching|Tags: , |0 Comments

10 tips to improve your photography

I've seen a million of these posts before, and if I were to write another one next week, it's likely to have about 6 different things in it. But for this week at least, here are 10 tips to improve your photography :) Be very conscious about what your subject is before you take the shot. Knowing what story you want to tell is key to figuring out the best way to tell it. What lens you should use, what angle, what depth of field and shutter speed etc. Photography is an interpretive art, so knowing what you are trying [...]

By |2016-10-22T15:15:32+10:00April 4th, 2016|Categories: Beginner's Photography|Tags: , , |0 Comments


Composition is the art of how we frame our photographs. As photographers, we always have a frame, and much of what makes a photograph good can come directly from that choice of composition. It's really all about controlling the viewer's eye and maximizing the message. Photography is visual communication and always carries some sort of story. With composition, we distill and refine our story from the overall environment, It is said that a good photograph relies on three things: an interesting subject, good lighting and good composition. Bad lighting can ruin a good photo, just as it's hard to take [...]

By |2016-10-22T15:15:33+10:00December 7th, 2015|Categories: Beginner's Photography, shooting techniques, Teaching|0 Comments

Auto ISO and how to use it

Auto ISO is a relatively new addition in the toolkit photographers have at their disposal, and it's one that can be incredibly useful if you understand what's happening. Being able to change ISO settings from shot to shot is one of the biggest advantages with digital photography. If we find ourselves in need of more light, we can increase the ISO and hey presto.. Of course, the price you pay can be some digital noise. But at many times, that is a small price to pay for such great freedom and flexibility. Let's start with a  quick primer on exposure [...]

By |2016-10-22T15:15:33+10:00June 18th, 2015|Categories: Cameras, Exposure, shooting techniques, Teaching|Tags: , |0 Comments

the role of shutter speed in photography

The role of shutter speed in photography - At heart, cameras are really pretty basic tools. Admittedly, they take a lot to master, but their basic functionality is not so complex. They are essentially just lightproof boxes, that we selectively let light into to expose the film or sensor. There are only three ways light comes into a camera: via the aperture, the shutter, and the ISO. Today I want to look at the role of the shutter speed in all this. Shutter speed controls two things in photography.  One is the duration of time that light is entering the camera. [...]

High Speed Flash

This post was originally published on my site. I started to look into the various possibilities of high speed flash, and what I thought was a relatively simple area of photography quickly expanded and my investigations seemed to find no end. So I thought I should blog my findings here, as I was a bit frustrated about the lack of resources on the subject myself. So what is high speed flash? Well, it's one way to make high speed photography. I make the distinction to separate the effects of shutter speed from the effects of flash. Both can freeze [...]

By |2018-09-16T13:24:02+10:00February 26th, 2015|Categories: General, Lighting, shooting techniques, Teaching|Tags: , , |0 Comments

What do you use your camera for?

What do you use your camera for? This might seem like a silly question at first glance. 'Taking pictures of course', would be the just as silly reply. But there is a lot more to photography than simply taking pictures. What do you take pictures of? How do you frame and portray your world? What role do you see a camera having in your life? Depending on your nature and how long you have been involved in photography, you might or might not have asked yourself these types of questions already. And one the most amazing things about photography is that [...]

By |2016-10-22T15:15:33+10:00January 5th, 2015|Categories: