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Creating Beautiful Portraits using the Sigma 105mm F1.4 Art Lens with the Sony A7IV

When it comes to portrait photography, choosing the right lens and camera combination can significantly impact your results. For portrait photographers looking for stunning bokeh, exceptional image quality, and reliable focusing speed, the Sigma 105mm F1.4 Art lens paired with the Sony A7IV is a match made in heaven. In this post, I’ll share my experience using this combination, focusing on three key aspects: bokeh and image quality, focusing speed, and the practical considerations of handling a heavy lens like the Sigma 105mm with a monopod.

Sigma 105mm F1.4 Sony A7iv | Model: andreailieva_5 | ISO 100, 1/1000s, F1.4
Sigma 105mm F1.4 Sony A7iv | Model: andreailieva_5 | ISO 100, 1/1000s, F1.4
Sigma 105mm F1.4 Sony A7iv | Model: andreailieva_5 | ISO 100, 1/1000s, F1.4
Sigma 105mm F1.4 Sony A7iv | Model: andreailieva_5 | ISO 100, 1/1000s, F1.4

Bokeh and Image Quality: Full-Body and Half-Body Portraits


One of the standout features of the Sigma 105mm F1.4 Art lens is its incredible ability to produce creamy, dreamy bokeh. The lens’s wide f/1.4 aperture allows for a very shallow depth of field, which is ideal for isolating subjects from the background, creating a beautiful blur that makes portraits pop. Whether shooting full-body or half-body portraits, this lens consistently delivers sharp subject focus with a smooth background blur that enhances the overall composition.

Sigma 105mm F1.4 Sony A7iv | Model: andreailieva_5 | ISO 100, 1/640s, F1.4
Sigma 105mm F1.4 Sony A7iv | Model: andreailieva_5 | ISO 100, 1/640s, F1.4
Sigma 105mm F1.4 Sony A7iv | Model: andreailieva_5 | ISO 100, 1/640s, F1.4
Sigma 105mm F1.4 Sony A7iv | Model: andreailieva_5 | ISO 100, 1/640s, F1.4
Sigma 105mm F1.4 Sony A7iv | Model: andreailieva_5 | ISO 100, 1/640s, F1.4
Sigma 105mm F1.4 Sony A7iv | Model: andreailieva_5 | ISO 100, 1/640s, F1.4

In my experience, the Sigma 105mm produces unparalleled image quality. The sharpness from center to edge is remarkable, even when shooting wide open at f/1.4. This sharpness, combined with the soft, natural bokeh, helps to create portraits that are both visually striking and full of character. For half-body portraits, the lens’s ability to capture intricate details, like hair strands and skin textures, while still rendering a beautifully blurred background, is truly impressive.

Sigma 105mm F1.4 Sony A7iv | Model: andreailieva_5 | ISO 100, 1/1000s, F1.4
Sigma 105mm F1.4 Sony A7iv | Model: andreailieva_5 | ISO 100, 1/1000s, F1.4

Sigma 105mm F1.4 Sony A7iv | Model: andreailieva_5 | ISO 100, 1/1250s, F1.4
Sigma 105mm F1.4 Sony A7iv | Model: andreailieva_5 | ISO 100, 1/1250s, F1.4

The lens also excels in low-light situations, maintaining high-quality results without compromising sharpness or introducing noise. The Sony A7IV's excellent sensor further complements this, allowing for dynamic range and color accuracy that reproduces skin tones beautifully. Together, this combination ensures that every shot is vibrant, lifelike, and professional.

One of the standout features of the Sigma 105mm F1.4 Art lens is its ability to handle challenging lighting scenarios, such as backlit portraits. When shooting half-body portraits with a strong backlight—like the golden hour sun filtering through trees or windows—the lens manages to control flares and maintain excellent contrast. The optical design minimizes ghosting and chromatic aberrations, ensuring that backlit subjects are beautifully rendered with a natural, soft glow.


Sigma 105mm F1.4 Sony A7iv | Model: andreailieva_5 | ISO 100, 1/2000s, F1.4
Sigma 105mm F1.4 Sony A7iv | Model: andreailieva_5 | ISO 100, 1/2000s, F1.4

Sigma 105mm F1.4 Sony A7iv | Model: andreailieva_5 | ISO 100, 1/2000s, F1.4
Sigma 105mm F1.4 Sony A7iv | Model: andreailieva_5 | ISO 100, 1/2000s, F1.4

What truly sets this lens apart is the way it captures rim light around the edges of a subject's hair. In half-body shots, this effect adds a stunning three-dimensional quality, separating the subject from the background and enhancing the overall aesthetic of the portrait. The Sigma 105mm’s ability to deliver sharp details while maintaining smooth, creamy bokeh in backlit situations makes it a fantastic choice for creating visually compelling and dynamic portraits.


Focusing Speed: Quick and Accurate Performance


One of the essential aspects of portrait photography is the ability to capture fleeting expressions and moments. With the Sigma 105mm F1.4 on the Sony A7IV, I found the focusing speed to be impressively quick and accurate. The A7IV’s advanced autofocus system, combined with the lens’s precise focusing mechanism, allows for fast and reliable focusing, even in challenging lighting conditions.

Sigma 105mm F1.4 Sony A7iv | Model: andreailieva_5 | ISO 100, 1/1250s, F1.4
Sigma 105mm F1.4 Sony A7iv | Model: andreailieva_5 | ISO 100, 1/1250s, F1.4

For both full-body and half-body portraits, the Eye-AF feature on the A7IV pairs perfectly with this lens, ensuring sharp focus on the subject's eyes with minimal effort. This feature is invaluable, especially when shooting wide open at f/1.4, where the depth of field is razor-thin, and precise focusing is critical. I rarely encountered missed shots due to focusing issues, which speaks to the reliability of this setup.


Handling and Weight: The Importance of a Monopod


While the Sigma 105mm F1.4 Art lens is a marvel in terms of optical performance, it is also known for its substantial size and weight. Weighing in at about 1.6 kg (3.5 lbs), it is one of the heaviest prime lenses in its class. When combined with the Sony A7IV, the setup can become quite taxing to handle for extended periods, especially during long portrait sessions.

To address this, I often use the IFOOTAGE Cobra 3 Monopod to support the weight of the lens and camera combination. The monopod not only makes it easier to carry but also significantly reduces fatigue during shoots. This setup allows me to maintain stability and focus on capturing the perfect shot without worrying about arm strain or camera shake.

Sigma 105mm F1.4 on a monopod
Sigma 105mm F1.4 on a monopod

Sigma 105mm F1.4 on a monopod
Sigma 105mm F1.4 on a monopod

Using a monopod also helps in maintaining composure for those perfect shots, whether I’m working with natural light outdoors or in a studio environment. It gives me the freedom to move around and adjust angles without the cumbersome weight pulling me down. For photographers considering this lens, investing in a good monopod like the Cobra 3 is highly recommended to make your shooting experience more comfortable and efficient.


The Sigma 105mm F1.4 Art lens, paired with the Sony A7IV, offers a fantastic combination for portrait photography, delivering stunning bokeh, outstanding image quality, and fast, reliable focusing. While the weight of the lens can be a challenge, using a monopod like the IFOOTAGE Cobra 3 makes the setup manageable and ensures a smooth shooting experience.


For portrait photographers looking to capture breathtaking, professional-quality portraits, this combination is well worth considering. Whether you're a professional or an enthusiast, the Sigma 105mm and Sony A7IV can elevate your portrait game to new heights.

Image Placeholder: Final Portrait Showcasing the Quality of the Lens-Camera Combo

Feel free to share your thoughts or experiences with this setup in the comments below. Happy shooting!


Amazon:

Sigma 105mm F1.4 Art E Mount

Sony A7iv


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Sigma 105mm F1.4 Art E Mount

Sony A7iv



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