Sony A7III vs Canon 5DmkIV Low Light Portrait Comparison!

Are you an avid photographer who loves capturing stunning low light portraits? If so, you’re likely familiar with the Sony A7III and the Canon 5DmkIV, two powerhouse cameras often favored by professionals and enthusiasts alike. In this blog, we will dive deep into a comprehensive comparison of these two camera giants specifically in the realm of low light portrait photography. We’ll discuss their respective performance in low light conditions, the quality of images they produce, and any unique features that set them apart. By the end of this blog, you’ll have a clear understanding of which camera may be the better fit for your low light portrait needs.

Sony A7III vs Canon 5DmkIV Low Light Portrait Comparison


Hey everyone, in today’s video we’re going to be comparing the Sony A7III to the Canon 5DmkIV in low light situations while taking portraits. I just want to say a big thank you to my sister Georgina for being today’s model. We’re going to be testing different lighting scenarios and camera settings to see how the low light performance compares between these two cameras.

Test 1: Portraits on the Side of the Street

For the first test, we took some simple portraits on the side of the street with available lighting. Both cameras were set to the same settings – shutter speed at 1/200, ISO at 6400, and f-stop at 1.4. Despite the Canon having 30 megapixels compared to Sony’s 24 megapixels, the lower megapixel count actually benefits Sony in low light situations due to a larger pixel pitch. The images from both cameras at ISO 6400 were clean and produced satisfactory results.

Test 2: Movement Shots

We also tried some movement shots where my sister was walking towards me. To avoid motion blur, I increased the shutter speed to 1/400 and set the ISO to 12800 on both cameras. The Sony A7III has an advantage with its eye autofocus and built-in image stabilization, which worked great in this low light situation. Both cameras produced sharp images with minimal motion blur, but the Sony’s noise appeared smoother and finer.

Test 3: Sparkler Lighting

Next, we wanted to test sparkler lighting in a darker spot. The Sony A7III’s raw photos straight out of the camera were flatter, making them easier to edit compared to the contrast-heavy images from the Canon 5DmkIV. The Sony also has a higher dynamic range, which is useful even in low light situations. The difference in image quality was most noticeable in this test.

Test 4: Starry Night Portrait

Lastly, we captured a creative portrait with my sister and the stars in the background. The Sony A7III’s ISO was pushed to 80000, producing a usable handheld shot. However, the Canon 5DmkIV could only go up to ISO 25600, resulting in a completely black frame. The Sony photo was edited to showcase its capabilities at such high ISO.


In controlled environments like a portrait shoot, both the Sony A7III and Canon 5DmkIV performed well in low light situations. However, during a wedding photography session where lighting is less predictable, the Sony A7III proved to be more capable with crisp, high-quality photos. The Canon 5DmkIV struggled in darker areas during natural light photography at a wedding reception. Overall, I am happy with the performance of both cameras, but for my wedding photography work, I will continue to use the Sony A7III for its low light capabilities.

Frequently Asked Questions: Sony A7III vs Canon 5DmkIV Low Light Portrait Comparison

Q: Which camera, Sony A7III or Canon 5DmkIV, is better for low light portrait photography?

A: Both cameras perform exceptionally well in low light conditions, but it ultimately depends on individual preferences and needs. The Sony A7III offers impressive low light capabilities with its larger sensor and advanced noise reduction technology. On the other hand, the Canon 5DmkIV has a reliable low light performance and excellent color reproduction, making it a popular choice for portrait photographers.

Q: What are the key differences between the Sony A7III and Canon 5DmkIV in terms of low light performance?

A: The Sony A7III features a full-frame 24.2 megapixel sensor with excellent low light sensitivity, allowing for cleaner images even in dimly lit environments. It also offers a wide ISO range of 100-51200 (expandable to 50-204800) for enhanced low light capabilities. Conversely, the Canon 5DmkIV utilizes a full-frame 30.4 megapixel sensor with dual pixel autofocus, providing exceptional low light performance and improved dynamic range.

Q: Can I photograph portraits in low light without using a flash with both the Sony A7III and Canon 5DmkIV?

A: Yes, both cameras are well-suited for low light portrait photography without using a flash. They have high ISO capabilities, allowing you to achieve well-exposed images even in challenging lighting conditions. However, it’s important to note that utilizing additional lighting equipment or techniques can further enhance the quality and creativity of your low light portraits.

Q: Do both cameras have image stabilization to minimize camera shake while shooting in low light?

A: Yes, the Sony A7III and Canon 5DmkIV are equipped with built-in image stabilization systems. The Sony A7III features in-body image stabilization (IBIS), which helps to reduce camera shake and allows for handheld shooting in low light situations. The Canon 5DmkIV, on the other hand, offers lens-based image stabilization (IS) through compatible lenses, minimizing blur caused by camera shake.

Q: Are there any notable differences in the autofocus performance of the Sony A7III and Canon 5DmkIV for low light portraits?

A: The Sony A7III boasts an advanced autofocus system with 693 phase-detection points and 425 contrast-detection points, making it highly capable of tracking subjects in low light. It also offers eye-tracking autofocus, which is particularly useful for capturing sharp portraits. Similarly, the Canon 5DmkIV utilizes a reliable Dual Pixel CMOS Autofocus (DPAF) system, providing accurate and fast focusing even in challenging lighting conditions.

I hope you find useful my article Sony A7III vs Canon 5DmkIV Low Light Portrait Comparison!, I also recommend you to read my other posts in my blog at this link.

If you need help with anything join the community or do not hesitate to contact me.

Best of luck! and follow your passion.

Please consider joining my newsletter or following me on social media if you like my content.

Price Shocker: Can’t Beat this Price

Are you constantly on the lookout for the best deals and discounts, especially when it...Read More

Watch This BEFORE You Buy the Sony A7IV! All Of Your Questions ANSWERED in This Video!

Considering purchasing the highly anticipated Sony A7IV? Before you make any decisions, be sure to...Read More

Shooting Portraits with a Pro Mist Filter?

Are you looking to add a dreamy and ethereal quality to your portrait photography? One...Read More

My Favorite Video Gear From the Past Year!

Have you been searching for quality video gear that will take your content creation to...Read More

How to buy the RIGHT camera!

Are you in the market for a new camera but feeling overwhelmed by the multitude...Read More

DJI Osmo Pocket AUDIO adapter studio test

Are you tired of the lackluster audio quality from your DJI Osmo Pocket camera? Look...Read More

Small! Light! INEXPENSIVE! Hands-On With The Sigma 18-50mm f/2.8 DC DN APS-C Sony E-Mount Zoom Lens!

If you’re in the market for a versatile zoom lens for your Sony E-Mount camera...Read More

4 accessories I CAN’T live without (Canon R6)

Are you a photography enthusiast who can’t live without their camera? Do you rely on...Read More

Leave a Reply

Your email address will not be published. Required fields are marked *