Elja Trum

The Pentax K-3 III versus the Sony a7 III at high ISO

Sunday 25 April 2021, 22:44 by | 3,898 views | 0 comments

This article was translated from Dutch with the help of AI. Read the original.

The Pentax K-3 Mark III was announced at the end of March. A new digital SLR camera already stands out among the flood of new mirrorless cameras, but this camera also has some notable specifications. Such as a maximum light sensitivity of 1,600,000 ISO.

Albert Siegel compares the Pentax K-3 Mark III with the Sony a7 Mark III in the video below, looking at high-ISO performance.


The Pentax performs well in the test. Although the Sony has a full-frame sensor, the Pentax with its APS-C-sized sensor does not perform badly at all in terms of light sensitivity. Sometimes it even outperforms the Sony.

That extremely high 1,600.00 ISO is not usable in practice, by the way. The video shows that clearly too. Nevertheless, in an emergency, the images at 204,800 ISO are still somewhat usable.

How important is high-ISO performance to you when choosing your camera?

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Elja Trum

About the author

Elja Trum is the founder of Photofacts and online photography course website Photofacts Academy. He has been writing about photography since 2006. Elja is also the author of (Dutch) books on composition, black-and-white photography, flash photography and portrait photography.

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Elja Trum

Elja Trum

Photofacts; everything to do with photography!

Would you like to take better photos and keep up with what is happening in photography? Photofacts publishes articles that teach you something about photography — from a product announcement to a practical shooting tip or a look at a website. Photofacts covers photography every day and is a hobby project of Elja Trum's that got out of hand. The articles are written by a team of volunteer authors. If you would enjoy writing one or more articles for Photofacts, do get in touch.More about Photofacts

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