I took a ton of comparison photos with my Z Fold 5, S23 Ultra, and the Open, of course the S23 was best, but the Open was really close, even on the 100x zoom, but these shots in my office were the first shots I took, these are cropped but that's the point, the Z Fold 5 looks good on the screen, but when you start zooming in on details it just fall apart. Both photos were taken from the same place, same lens, auto settings.
https://photos.app.goo.gl/eeXVFXsoWrAmcEgV8
Hi, thanks for the images. Yeah I'm not sure what to tell you. I haven't experience the Open myself as you do. What I CAN tell you is that yes, the Fold 5, only zoom it up to 3x, because taht's optical I belive, so anything after that you are zooming in pixels (digitally). I hear the Open has a 3x but because it has more resolution it can do pretty well at 6x and that's probably where it all comes down to (if you are planning on doing zooming which seems what you really care about).
With that said, here is some comparisons from Phone Arena:
Main camera, day time:
In bright daylight conditions, the OnePlus Open and the Galaxy Z Fold 5 both fare well. Colors and processing are a bit more excessive on the Galaxy Z Fold 5, while the OnePlus Open goes for a more natural style. Interestingly, even though better dynamics were touted as a strong point for the OnePlus device, the Galaxy Z Fold 5 seems to be doing a better job in extreme lighting conditions.
Main Camera, lo light:
Low-light performance is similar on both devices, but the OnePlus Open seems to have that tiny edge when it comes to overall dynamics and style. It maintains a nice balance between a natural and pleasingly rich look that gives it a slight edge over the Z Fold. 5.
and ... your Zoom ordeal...:
The OnePlus Open beats the Galaxy Z Fold 5 when it comes to zoom quality, especially when it comes to low-light performance.
Scroll down to the camera comparisons on the article , here is the link
https://www.phonearena.com/reviews/oneplus-open-vs-galaxy-z-fold-5_id5907
Hope this gives you a more assuring perspective and with your decision