Field Curvature, also known as “curvature of field” or “Petzval field curvature”, is a common optical problem that causes a flat object to appear sharp only in a certain part(s) of the frame, instead of being uniformly sharp across the frame. This happens due to the curved nature of optical elements, which project the image in a curved manner, rather than flat. And since all digital camera sensors are flat, they cannot capture the entire image in perfect focus, as shown in the below illustration:
It is a very natural urge for photographers to document the swirling life around them. We often find ourselves drawn into, as observers, a number of situations and noticing interesting details about other people on the streets. Photographically capturing these moments is a very different thing, however. While landscape photographers will usually find themselves alone and sports photographers are expected to point huge lenses at people, it is a much more self-conscious process to photograph random people in public places. I am sure many of us have regretted leaving our cameras in the bag in the face of interesting everyday situations. In this article, I will provide several street photography tips for beginners. Hopefully, it will help you start using your gear more freely without fear of being confronted by your subjects.
Starting from this month, I am reaching out to the best photographers in Colorado, asking them to write guest posts on our website and showcase their work. There are some amazing masters of photography in Colorado, with various backgrounds in landscape, travel, portrait, fashion and wedding photography. My goal is to not only support our local photography community here, but also to provide valuable information, tips and inspiration from the best in the industry. One of the photography masters is Jack Brauer, who I reached out to about a week ago, after spending a good half an hour enjoying stunning landscape photography on his website. Below is a guest post that Jack was kind enough to write for us, with some very important and useful tips on landscape photography. It turns out that Jack is not only a phenomenal photographer, but also a great educator and story teller. I am sure you will love his article as much as I did. Enjoy!
I intentionally waited on posting this article on photographing a solar eclipse until it actually took place on 05/20/2012, because I wanted to document my experience and provide information on what challenges I had during the process of photographing this rare, but stunningly beautiful phenomenon. This was my first time trying to photograph a solar eclipse; in fact, it was my first time seeing one take place. Yes, there have been solar eclipses before, but I have been missing them all for some reason. This time, after I heard it on the news a week ago, I decided to watch it with my family and document the event with some photographs. While we in Denver were not as lucky as some folks in US southwest, Japan and a few other places to see the total solar eclipse, the partial eclipse still looked beautiful. Unfortunately, clouds moved in and blocked most of it for us here, but I still was able to capture a few shots when the clouds cleared up a little. I will be sharing those photos with you in this short tutorial. Hopefully when a solar eclipse takes place next time, you will have some useful information on how to photograph it with your camera.
At one point or another, we all stall. Whether it is because we are drowned by our daily routine or because we simply lose interest in doing what we love. We stall and it’s not quite that simple to get back on track. On the contrary, we dig ourselves deeper. We sit cozily in front of our computers, read about gear and people we admire. Why do we admire them? It’s because they keep on doing while we stall, while we stay put and touch nothing unless absolutely necessary. It’s because they do everything we don’t.
As photographers, we are bombarded with messages urging us to see the world through our own eyes, or find our “unique vision”. Apart from the photo club outings and occasional seminars, photography is primarily an individual pursuit. And as we all know from Diseases That Plague Photographers and other articles on Photography Life, photographers can be a bit consumed (ok – downright obsessive!) with their equipment, and have extremely strong opinions concerning it!
Infrared, or “IR” photography, offers photographers of all abilities and budgets the opportunity to explore a new world – the world of the unseen. Why “unseen”? Because our eyes literally cannot see IR light, as it lies just beyond what is classified as the “visible” spectrum – that which human eyesight can detect. When we take photographs using infrared-equipped film or cameras, we are exposed to the world that can often look very different from that we are accustomed to seeing. Colors, textures, leaves and plants, human skin, and all other manner of objects can reflect IR light in unique and interesting ways, ones that cannot be mimicked with tools such as Photoshop (yes – there are limits to what Photoshop can do!). Like any form of photography or art however, it is a matter of taste. I would strongly urge people to explore the world of IR. As the number of cameras-equipped devices proliferates and the associated technologies improve, IR photography may offer the opportunity for photographers to expand into new arenas and differentiate their offerings from those of others.
I had an opportunity to photograph a local Taekwondo sparring event last weekend and I decided to share some of the photographs from the event, along with some photography tips and lessons learned. I have been involved in Taekwondo since I was 12 and while I spent many years taking part in this beautiful and highly energetic (and sometimes even brutal) sport, I never had a chance to photograph it. While I have been suffering from pneumonia during the last 2 weeks, I could not skip a Taekwondo sparring with some of the best athletes in Colorado. I got my daily doze of antibiotics, then quickly made a plan and took off.
If you are inspired by the works of Ansel Adams, James Nachtwey or other masters of black and white photography, you probably want to try doing some B&W yourself. If you don’t know how to take black and white pictures and where to start, then this guide might help you to get into the world of B&W photography. I must admit that I am no guru when it comes to black and white photography, but I have been experimenting with it lately and would like to share what I have learned so far.
If you have been reading articles on photography and post-processing, especially from a professional photographer, you have probably stumbled upon the word “workflow” and wondered what it meant. In this article, I will explain what a workflow is and what it is comprised of in the world of digital photography. Please note that the workflow process can vary greatly from one photographer to another, because of too many variables involved and because there is no established, standard workflow that applies to everyone. Therefore, information that I provide in this article should only be used as a reference point to get an understanding of how workflows work in general. It will be totally up to you to establish your own digital photography workflow and you should ultimately design the process that works best for your needs.