SIGMA 14mm F1.4 DG DN Art
Introduzione
I've been wanting to start writing articles on my own website for a while now, not just for external sources. I owe a lot to the folks at Toscana Photo Service and Vanguard, who've supported me since the beginning of this journey, but the time has come to share my experience here. And what better way to start than by talking about my favorite lens?
SIGMA also played a crucial role in my professional growth: they constantly guided me in my development on social channels, giving me lots of inspiration, ideas and above all many opportunities in the field.
Why him?
Over the past few years, I've had the good fortune of trying dozens of lenses from various brands. Some have surprised me, others have been less convincing. Ultimately, though, there's one that has remained a permanent fixture in my backpack: the SIGMA 14mm F1.4 DG DN Art.
Why a 14mm?
Many people ask me why I chose a 14 mm instead of a more classic 16-35 or a fast 20 mm. The answer is simple: I photograph landscapes and environmental astrophotography. I want the sky to be the protagonist, but without giving up the landscape that supports it. Those 2 or 3 millimeters less may seem small on paper, but in the field they make a huge difference in composition.
📊 Table: Field Angle Comparison
| Focale | Field Angle (Diagonal) | Main Use in the Field |
|---|---|---|
| 14 mm | 114.2° | Impressive ambient astrophotography, 360° starry skies and close-up |
| 16 mm | 107.0° | Classic wide angle mountain and seascape |
| 20 mm | 94.5° | Moderate wide angle for tighter, more controlled shots |
Why buy a 14mm F1.4?
You don't buy it to get a pronounced blur: at this focal length, that's not its vocation. You choose it to collect as much light as possible. This means being able to work with lower ISOs or drastically reduce exposure times when necessary, for example during the Northern Lights, preserving their structure and movement.
Prestazioni notturne
Even wide open, the level of sharpness is surprising and very uniform. Coma is present at f/1.4, as is natural to expect from such an extreme wide-angle lens, but it is very well controlled and easily correctable with modern post-production tools. With a star tracker, the brightness of the lens allows for extremely clean files, significantly reducing the ISO compared to less bright lenses.
Prestazioni diurne
In addition to night photography, this lens also offers excellent performance during the day. The depth of field is excellent already at f/5.6 and, in many situations, even f/2.8 allows you to obtain a perfectly readable frame from foreground to infinity. Another aspect that I really appreciated is the rendering of the sunstar: already at f/11 it is extremely clean, without forcing you to take a second shot dedicated exclusively to the sunstar, a practice often necessary with other lenses. Lens flare is also very aesthetically pleasing and, when you don't want it, it is easy to eliminate in post-production, avoiding the classic shot with your thumb in front of the lens to clean up the artifacts.
Diffrazione
Because this is an f/1.4 lens, diffraction starts to appear earlier than it does on slower lenses. Performance remains very strong up to f/11. Between f/11 and f/14 the loss is small; f/16 is still usable, though it benefits from a little sharpening. When I need a longer shutter speed, I prefer to stay within the lens's best aperture range and use an ND filter.
Pros and Cons
Weight and size are important, but the integrated Arca Swiss collar is a real advantage. While it's not a replacement for a true nodal head, it's close enough to the nodal point to allow for very low parallax panoramas, easily managed in PTGui or Lightroom. The lack of a front thread limits traditional filters, but compatibility with rear and astronomical filters is a significant plus.
✅ PRO
- Brightness f/1.4 unmatched for astrophotography
- Nitidezza uniforme da centro a bordo a tutta apertura
- Collare Arca Swiss integrato ideal for balancing and panning
- Portafiltri posteriore for gelatin and astronomical filters
❌ CONTRO
- Weight and Size noticeable in a hiking backpack
- Niente filtri frontali a vite due to the bulbous front lens
Conclusioni
After three years of continuous use, I can say that the SIGMA 14mm F1.4 is one of the lenses that has most influenced my photography. It's not perfect: it's big, heavy, and requires some compromises. But every time I find myself under a starry sky, in front of the Northern Lights, or simply in front of a landscape that deserves to be told in its entirety, it reminds me why it continues to have a permanent place in my backpack.
If you would like to try it in the field, I can show you how I use it during a workshop. A specification sheet only tells part of the story. The rest becomes clear when the light changes and you have to make an actual photograph.