I've had a chance to play around with the Pentax K-3 III a bit and just wanted to share some of the things that stood out to me (having mostly used just the K-1 since it came out). I'm looking more at features/usability than actual pictures though
First of all, it's great to see that Pentax fixed a bunch of silly annoyances found in prior models. For example:
- the mirror no longer pointlessly comes down when changing settings in movie mode/live view
- you can finally select the active SD card via the menu
- the rear LCD automatically turns itself off when you look through the viewfinder
- aperture metadata and simplified shooting with manual lenses
- ability to charge the grip battery without removing it
Another thing that instantly stands out is just how fast this camera is. Everything from focusing, to write speed (~90Mb/s with UHS-II cards), to changing menu settings feels faster and more responsive. And that's not to mention the 12FPS burst, which puts the K-1 to shame. The AF is also noticeably faster, not just for tracking but also for low-light and everyday shooting. Both SDM and screwdrive lenses focus more quickly and more decisively. The focusing just feels a lot less laggy.
The viewfinder is phenomenal, just as big as a digital full-frame viewfinder in fact. The illuminated AF points are a bit easier to see in the K-1, but otherwise the viewfinder overlay is very similar.
And when it comes to image quality, it's evident that the sensor in the K-3 III is a generation or two newer. Side-by-side it's a really close call, even with the K-1's larger sensor and higher resolution. ISO 100k is easily usable if you have the right denoise software.
The K-3 III is noticeably lighter than the K-1, so if that's important to you, it may be worth opting for the K-3 III outright.
Another amazing feature is the USB-C support. Not only can the same cable now be used for charging my phone, laptop, and camera, but the camera can also charge other devices in an emergency.
However, there were also some unexpected surprises. The user interface of the K-3 III has seen some significant changes over prior models, and while still user-friendly, it doesn't feel quite as intuitive or as refined as before. I'm not a fan of the vertical layout of the main menu, the graphics are generally not as fancy/clear (example below), and many icons/buttons/readouts are quite small. Also, I'm skeptical about the utility of the touchscreen beyond selecting AF focus points, as the menus cannot be navigated with touch alone. Some things can be pressed, while others can't- and some are outright confusing. It's hard to tell what can be done without a bit of trial-and-error. For example, while in video mode, tapping on the "LV" icon will instantly turn off the rear LCD. It can then only be turned back on by tapping it again. Thus, there's a bit of a learning curve, and also even more ways to accomplish the same task, which when combined with varying button combinations for different sub-functions, becomes quite complex. That said, Pentax did add a ton of new customization options, so in the long run you can set up most of the buttons and features exactly as you want them.
One thing I wasn't expecting to care about was the lack of a tilting LCD on the K-3 III. However, when I wanted to record a video on a tripod, I immediately saw the benefit of the K-1's tilting screen. The K-1's on-board GPS also makes it feel like more of a grown-up camera. I have a hunch that Pentax will continue using features like these to differentiate the two product lines.
Last, let's talk about the button layout. It seems that the LV, movie, and playback buttons have once again shifted around, and Pentax is having a hard time settling on what to do with the settings dial. I find the playback button hard to reach on the K-3 III, and I don't get why I need to turn a knob to enter live view. It's better to have a button for live view, though its placement on the K-1 is also questionable. At the end of the day, I still prefer the layout on the K-1.
Anyway, overall, the K-3 III seems to be a worthy successor to the K-3 II, and unsurprisingly probably the best camera Pentax has made to date. Though it has a few quirks, it's hard to see how you could go wrong if you can afford it! I can't end this post without restating just how impressive the overall performance and autofocus is.
Adam
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