Sigma 40mm f / 1.4 DG HSM Art, analysis: a blunt, fixed lens to get all the performance out of your camera’s sensor
We are facing a lens of the Sigma Art series. In other words, we are ahead of the premium class of the brand. There are no concessions. Everything has to be perfect. And that requires a high material quality and of course a clear optical quality. The Sigma 40 mm 1: 1.4 DG HSM Art comes from the world of cinema and should reach the highest level of sharpness.
In the September presentation, Sigma made it clear that the lens is to present top quality targets at a price free of competition. There are no limits to achieve excellence. And unlike higher-profile brands, they paradoxically sell at a price that is acceptable to most photographers who are aware of the importance of the lenses of taking full advantage of their camera’s sensor. However, there are not as many differences as with other focal lengths.
The introductory letter of the Sigma 40mm f / 1.4 DG HSM type impressed. Its design comes from the material that dreams are made of, the cinema. It has three FLD lenses and three other SLDs. What does that mean?:
- FLD are optical glasses that have been developed together with the Hoya brand with the virtue of having the lowest degree of chromatic dispersion possible with a great transmission of light. This means lower costs, lighter weight and a quality equivalent to fluorite glasses.
- SLD are lenses that allow to correct the chromatic aberrations thanks to the low dispersion of the light they cause.
The focal length of 40 mm is very curious, because it is closer to the diagonal of the full-format sensor for which it is intended. This makes it a more dynamic target without the distortion problems we already find in the 35mm lenses. Let’s look at the main features to know what we will have in our hands.
Main features of the Sigma 40mm f / 1.4 DG HSM Art
As you can see in the pictures, we are standing in front of a small tank. It is common within Sigma’s line of art where quality prevails over everything else. It seems to confirm a popular saying of these countries. We’ll see if that compensates, or we can use light pancakes of the same focal length.
|FOCAL LENGTH||40 mm|
|VISION ANGLE||56.8 °|
|MOUNT||SIGMA / NIKON / CANON / SONY E|
|MINIMUM FOCUSING DISTANCE||40cm|
|NUMBER OF BLADES||9 (Circular diaphragm)|
|NUMBER OF ELEMENTS / GROUPS||12/16|
|FILTER DIAMETER||ø 82mm|
|DIAMETER / LENGTH||87.8㎜ / 131㎜|
Design and construction
It weighs more than a kilo and has to carry 82 mm filters . It is therefore not discreet and small. It’s huge. You can not lie Follow the Art line of Sigma with all the consequences. You will never go unnoticed with him. But you will always enjoy its quality.