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Pentax K-3 Mark III added to studio test scene: Digital Photography Review


May 31, 2021

Published May 31, 2021

dpreview staff

Ricoh’s Pentax K-3 Mark III is a high-end flagship DSLR that we’ve found to be an excellent photographic companion for all types of picture-taking. Testing for its full review is ongoing, and we’ve just added it to our studio scene – peruse it for yourself and see how it compares to the competition.
Worth mentioning at this stage, however, is the slight (relative) softness of the K-3 Mark III at its ISO 100 and 200 settings in our daylight mode in particular. Despite repeated attempts using Live View, the optical viewfinder, mirror lock-up, shake reduction (which isn’t recommended for tripod shooting) and of course a self-timer, we were unable to produce a sharp image using the mechanical shutter at these particular settings due to shutter shock.
The K-3 Mark III does have an electronic shutter, though it’s only active when using its Pixel Shift multi-shot mode. We don’t currently have Raw support for this mode, but we were able to extract a single image from this mode to compare the electronic shutter performance with the mechanical shutter:

What you’ll find, particularly if you click-through the links in the caption, is that the K-3 III is capable of outstanding sharpness at these problematic shutter speeds. Rest assured, this is something we’ll be looking at further as we delve further into our analysis for our review.
As we’ve come to expect from Pentax’s latest full-frame camera, the K-1 Mark II, you may also notice some noise reduction from the K-3 Mark III in its Raw files at higher ISO values. Is there anything else you want to know about the K-3 Mark III’s image quality? Let us know in the comments.

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