Who are the famous wildlife photographers? A list of famous nature photographers today. I've travelled to probably 30 countries over the last few years, taking photos and licensing them around the world, and creating lots of free photography learning resources.
Read More Read More. How to invert a selection in Photoshop, including examples of why you would want to Discover what are the best ND filters, including the best variable ND filter and the See SmugMug example websites to get an idea of how powerful SmugMug is as a This article covers the best variable ND filter for photographers and videographers, showing you exactly Easily add fireworks and their reflections to sky and water to make your photo special.
Save my name, email, and website in this browser for the next time I comment. How Much Optical Zoom is Good? Previous Post. Next Post. Zoom lenses are designed to offer the photographer a great deal of flexibility in composition and framing without ever having to change lenses, or even physical position, for that matter. All it takes is a quick twist of the zoom ring and the composition can go from the shortest focal distance to the longest for a very different take of the scene presented before your lens.
And many Sigma zoom lenses offer true macro capture at the telephoto end, for close-up capture of tiny objects, adding to the overall versatility. Of course, as you zoom in or out and recompose, the overall feel of the image can change dramatically, as a lens goes from a wide field of view to standard, or a standard field of view to supertelephoto.
Depth of field gets much more shallow as focal distance increases, even as telephoto compression diminishes the apparent relation between distant objects.
The same scene can quickly be seen many different ways with a zoom lens. Zoom lens construction technology has come a very long way over the past forty years. And while it is still very typical for many zoom lenses to have some degree of field distortion at one end or the other of the zoom range as well as some slight vignetting at times, the overall image quality straight from the sensor of a modern zoom lens flat-out blows away the results of lenses from a few generations back. These lenses for the smaller image circle are designated with DC in the official name.
This is how it works, and this is how it is. On the shorter end of the focal lengths, it usually feels like APS-C is losing some of the wide-angle capabilities. But lenses like the pair of mm DC zooms and the mm F4. But this smaller sensor also means their is an apparent gain in focal length on the longer side of the zoom range. This means that a mm focal length on an APS-C DSLR is more like a mm field of view and a mm focal length is like mm on a full-frame camera. For wildlife photographers, this sensor factor can make distant animals bigger in the frame.
And when it comes to full-frame lenses on APS-C DSLRs, the smaller image circle means that the image is captured with incredible sharpness from the center section of the lens. Many Sigma zoom lenses offer a macro capture mode at the longest focal length at magnification ratios between one-third and one-half life sized reproduction.
When a Sigma zoom lens has Macro in the official name, it means that it has a maximum magnification ratio of or greater. This means that at the closest focusing distance, a one inch object will be rendered as one-third of an inch. For many photographers first exploring macro capture, this a great way to get comfortable with the nuances of macro photography. At very close focusing distances, all motion is amplified. For example, a bit of jittery camera movement, and the slight swaying of a flower can mean the difference between having that ladybug perfectly in focus or having the subject drift out of the sharpness zone.
Macro takes practice, and if you crave higher magnification than is offered at the far end of a the zoom, Sigma offers a line of pro-caliber prime macros offer true life-sized magnification for even more close-up details. As of April , Sigma offers two mirrorless-exclusive zoom lenses, the mm F2. Learn much more about which Sigma lenses fit which camera systems here.
A single zoom lens such as the mm can cover wide-angle to telephoto, plus macro in a single lens, when traveling light with maximum versatility is the demand. Or a zoom lens like the mm F2. The Sigma mm F1. The pair of Sigma mm F The Sigma mm F2. Check out the full lineup here. In April , it was revised to include updated product information and links, mirrorless zoom lens information etc.
Based in Central Jersey, Jack's go-to photography spots are backroads and beaches of his home state. He loves to travel far and wide with his wife and daughter, visiting national parks, museums, tropical islands and more along the way. Zoom is also commonly confused with how close a lens can bring a subject. The zoom number, like, only shows the range from the widest to narrowest angle of view for that lens. Zoom is a good indicator of flexibility, then, but not how close you can get with that lens.
For that, you need the focal length, like m, 1m, etc. In point-and-shoot cameras, it s more common for manufacturers to advertise the zoom rating of a lens ,, etc. If a lens has a single focal length number, e. Save my name, email, and website in this browser for the next time I comment.
Notify me of follow-up comments by email. Notify me of new posts by email. What is a Zoom Lens? Why and When to Choose a Zoom Lens?
Back to sigmaphoto. Home What is a Zoom Lens? The reason is, most DSLR lenses are not interchangeable between brands. If you already have a collection of lenses at home, buy a camera that can put them to use. Most people spring for the camera with the highest resolution, measured in megapixels.
Instead, look at the sensor size. A larger sensor will capture more light and produce images with less noise. While the design is more a matter of personal preference, try holding a couple of different models and go with what feels comfortable. Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content.
Create a personalised content profile. Measure ad performance. Select basic ads. Create a personalised ads profile. Select personalised ads. Apply market research to generate audience insights. Measure content performance. Develop and improve products. List of Partners vendors. Katie Dundas. Twitter LinkedIn. Updated on April 12, Rich Scherr. Rich Scherr is a seasoned technology and financial journalist who spent nearly two decades as the editor of Potomac and Bay Area Tech Wire.
Our Fact-Checking Process. Article fact-checked on Apr 11, Tweet Share Email. The Rundown. Best Overall:. The FZ80 is a top choice if you need a camera that can shoot quickly, accurately, and capture impressive zoom shots. Runner-Up, Best Overall:. Best Splurge:. You can get creative with features included in the camera, such as time lapse, Superlapse, and built-in filters for editing. Best for Families:. We love the fast autofocus, long battery life, and accurate color—just what you need for the next family vacation.
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