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Month: November 2016

Which Canon Cameras Maintain Autofocus with Extenders at f/8 Max Aperture?

The subject of autofocus (AF) at an f/8 maximum aperture is something that often comes up in my writings about cameras, lenses and telephoto lens techniques for subjects like sport and wildlife. It’s an often misunderstood subject in itself, but it also continuously raises questions about which cameras will still provide AF when used with a lens+extender combination that delivers a max aperture of f/8. For now, I’m providing this information for Canon lenses because the majority of my lens and camera reviews in the past have been about Canon gear. In the future, I’ll also create a similar...

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Nikon 200-500mm f/5.6E VR Review

Exploring the Creative Possibilities of a Super Telephoto Lens I’ve been a Nikon DSLR shooter for over 10 years now. Starting out with the small but mighty 6-megapixel D70S that did so much to crack open the hobbyist/amateur market, I’ve been lucky enough to build up my skills and photographic repertoire just as digital photography technology seemed to evolve and mature in parallel. For many, that initial leap in to the DSLR world is soon followed by the realization that the performance and creative capabilities of any camera are limited nearly as much by lens choice as by megapixels,...

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21 Perfect Gifts for Photographers

The Photographer’s Gift Guide has historically been one of the most popular posts of the year, so it’s with great pleasure that I bring you the 2016 edition. As always, I’ve tried to find a selection of great products at a variety of different price points, so there should be something for everyone on here. Here’s the clever thing… For the last three years I have been monitoring exactly which products you guys click on from my gift guides. That means I have got a very good idea of exactly which kinds of gifts are the most popular amongst...

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How to Calculate a Camera’s Crop Factor

The term crop factor refers to the ratio of a specific sensor to a 35mm full frame sensor. This factor determines the equivalent field of view of a lens when used on a camera with a sensor that is either smaller or larger than our reference full frame sensor. Many people are familiar with the two common APS-C crop factors: 1.6x for Canon, and 1.5x for Nikon, Sony and everyone else. But how do we get to this number, and how do you calculate the crop factor for other sensor sizes? Crop Factor Calculation The important thing to know is...

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What Is the Best Photography Bean Bag Fill?

I wanted to write this post because I wish it’s something I’d have read myself a few years ago when I started getting into wildlife photography. The answer to the question “What is the best photography beanbag fill?” seems obvious to me now with experience, but for a while I was getting it all wrong! What is a photography beanbag for? I’m sure there will be a few people who are unfamiliar with the usage of a beanbag in photography, so let’s start with a brief overview. Beanbags take two main forms: The first is a U-shaped bag that...

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Sony and Zeiss Lens Terminology + Abbreviations

From the outside looking in, the world of Sony lenses can appear extremely confusing. Sony are a relative newcomer to the photography industry, having released their first ‘Cyber-shot’ fixed lens compact in 1996. Unlike both Canon and Nikon, Sony did not start life as a camera or optics business, they in fact began life manufacturing radios and tape-recorders. This difference in initial direction, and relatively late entry into the camera industry meant that Sony had to look outside their own capabilities in order to gain lost ground on competitors, and eventually become one of the ‘Big Three’ manufacturers in...

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