Of the three main variables relating to creative and artistic control on DSLR and compact interchangeable cameras–aperture, shutter speed and ISO– aperture control, is for many beginners, the most difficult to grasp. Have no fear, we’re here to help. Learning how and when to select a wide or narrow aperture unleashes the creative and expressive potential of your camera’s lenses.
Search Results For: 18-35mm
First Look: Sigma 50mm F1.4 DG HSM | A
The Sigma 50mm F1.4 DG HSM | A lens is simply amazing. This standard field of view, fast-aperture, full-frame, prime lens combines outstanding sharpness, fast autofocus, in a lens that is built with a singular vision on performance.
Geometric and Diffraction MTF Charts: A Clearer Picture for Photographers
Our technical product information has been expanded to now include both Geometric and Diffraction MTF charts for new Sigma lenses. You can take a look at the technical information about the new Sigma 18-200mm F3.5-6.3 DC OS HSM | Contemporary lens on the Sigma Global Vision website to see these graphs plotted as part of the total package of information we share to help photographers understand the performance of our lenses.
Sigma 24-105mm F4 DG OS HSM | A: First Impressions
First look at the new Sigam 24-105mm F4 DG OS HSM | Art lens. The newest lens in Sigma’s lineup is a full-frame constant-aperture wide-to-tele zoom with OS.
Recent Reviews Roundup
Top publication such as Shutterbug, Examiner, PC Magazine, CNET, Popular Photography, Gizmodo and others review Sigma lenses and photography equipment including the Sigma 18-35mm 1.8, the Sigma 35mm 1.4, the Sigma 120-300mm 2.8 and much more.
Why the New Lens Mount Conversion Service is Great for Photographers
Many times I’ve been asked on Facebook and elsewhere if it is possible for a photographer to keep their favorite Sigma lens and get a lens mount swap after making the decision to switch from one camera to the next, and now, finally, I can answer them with the answer they (and I) want to hear! As of September 2, 2013, owners of lenses in Sigma’s line of the Sigma Global Vision lenses: Art, Sports, and Contemporary, can now send their lenses in for a mount swap. This is a paid service, and lenses will be shipped to our Aizu, Japan factory for the mount conversion
Fireworks and Bright Lights in the Night For the Fourth of July and Beyond by Jack Howard
The fourth of July means many things, and for photographers, one of the most exciting and challenging aspects of this holiday is capturing amazing photos of fireworks. The bright lights in the night paint the sky with multi-colored flames in a way that can be spectacular to witness and capture with your camera. And while it may seem that fireworks–and articles about how to capture fireworks with your DSLR–only appear for a few nights in early July, there are actually tons of nights from coast to coast all summer long when the skies are illuminated with fireworks.