Sigma 24mm f/1.4 DG HSM

amazon Sigma 24mm f/1.4 DG HSM reviews

Design

Sigma 24mm f / 1.4 weighs about 655 grams and 9 cm long. Despite being a focal lens Sigma 24mm quite short but f / 1.4 the design is quite big and heavy. But also so that when used on large-sized camera like the 5D Mark III, the camera lens and form a mass very balanced.

Sigma quality design 24mm f / 1.4 is excellent. The lens is covered by a plastic shell mixed with synthetic materials and the metal ring provides a feeling very uncertain. The lenses are manufactured meticulously brings the highest quality for the user. Focus ring moderate width provides comfort when used. As usual, on the body will have a key switch to switch between manual focus and autofocus. Filter used on Sigma 24mm f / 1.4 is a 77mm filter.

Ability to focus

Experiments with Sigma autofocus 24mm, the lens speed pretty fast when only takes 0.25 seconds to catch the exact definition desired subjects when using the Canon 5D Mark III on. However, Sigma 35mm or 50mm autofocus speeds are much faster.

In poor lighting conditions, the ability of Sigma AF 24mm f / 1.4 at a moderate level and the lens can be quite accurate in most trials. Also using the HSM AF motor, Sigma 24mm f / 1.4 delivers extremely smooth sound during use.

Purple fringing

Purple fringing is a phenomenon often occurs when you backlit shooting, the border on the subject will appear purple fringing. Depending on the optical quality of the lens and processing capabilities of the camera that this phenomenon more or less. Usually this phenomenon does not affect the view images in small format that only when we need new large format photo printing, regardless of it.

Sigma 24mm f / 1.4 lens quality is very good when purple fringing phenomena appear very low in the example above.

Dark corners

The phenomenon occurs frequently dark corner on the lens has a large aperture. That’s because the amount of light is not enough to transmit sensor in the 4 corners lead to dark images. Sigma 24mm f / 1.4 is certainly not an exception as you can clearly see the phenomenon when shooting at the maximum aperture angle 1.4. To eliminate this phenomenon, you can adjust the aperture down to less than f / 4.

Macro

Obviously Sigma 24mm f / 1.4 is not a dedicated macro lens, but with the ability to focus 25cm closest, you absolutely can use as a macro lens in some cases. With magnification ratio of 1: 5.3, the Sigma 24mm f / 1.4 for temporary settlement results when used for close.

Bokeh

Bokeh is the term refers not part of the image that the lens focus. A beautiful bokeh lens usually feels soft, silky and smooth. With 9 leaf border, the Sigma 24mm f / 1.4 does not disappoint us as the quality of the lens is quite good bokeh. You can see in the following image to be able to assess for himself.

Definition.

In the center photo, sharpness and Sigma 24mm is an excellent offer. Right from the largest aperture of f / 1.4, the definition has been reached 35 lpmm, closing down export f / 2.2 high definition increases, up to 40 lpmm and at aperture f / 5.6 to f / 8.0, while high-definition reaches 45 lpmm. Sigma once again not disappointed as the user provides excellent sharpness in the center area.

In the area edges, while large aperture of f / 1.4 image quality caused border area a bit disappointing for the user while not really high definition. But when gate closes down to f / 2.8, the quality at the edges is acceptable.

Similarly on crop sensor, you will need to shut the border down to f / 2.2 to be able to give a good image quality in the region edges.

where can you get a Sigma 24mm f/1.4 DG HSM online

Sigma 24mm F1.4 ART DG HSM Lens for Nikon: Buy it now

Sigma 24mm F1.4 ART DG HSM Lens for Canon: Buy it now

Sigma 24mm F1.4 ART DG HSM Lens for NIKON DSLR Cameras w/ Essential Accessory Bundle: Buy it now

Sigma 24mm f/1.4 401101 Wide-Angle-Prime Art Lens Fixed Prime for Canon EF Cameras + Polaroid Optics 77mm 3 Piece Filter Set (UV, CPL, FLD) + Polaroid Deluxe Accessory Kit: Buy it now

Conclude

Advantages

Good design

Ultra-high definition, especially the downtown area.

Border region with high-definition images when used on APS-C sensor

Low distortion

Focus stable, smooth and precise

Resolve some issues about optical phenomena.

Disadvantages:

Focusing speed is slow

The phenomenon is still high at the corner on a full-frame sensor

Test results showed that the Sigma 24mm f / 1.4 DG HSM lens is a completely amazing in the price range. With its excellent sharpness, smooth bokeh, distortion, low purple fringing showing excellent optical quality of the lens. However Sigma 24mm f / 1.4 has yet to solve the problem of the phenomenon at the corner on full-frame cameras. To be fair with the current technology improving this problem is quite difficult.