good to know, I havent done any flat tests but what I have seen so far alines well with your findings! I am really surprised by how well this lens seems to do everything I am looking for! for a crazy prince!
Check out the Laowa 19mm f2.8 wide angle for the GFX as well. What amaze me is most 'cheaper' Chinese lenses correct the lens distortions by design and not by software profile correction. I own many Fuji's GFX lines and if you open them without lens profile, then you can see the amount of distortion present in design.
@@DannyChau7 I forgot I had the Laowa 17? zero D for GFX, I wasnt too happy with it, nothing really bad but just nothing too pleasing either, ultra wide and it did its job, when the 20-35 came out I got that and never looked back. I agree with the lens correction 100%, but as long as it does not bother me in the final image, I honestly dont mind.
@@paulschefz I'm aware of the Laowa 17, the lens was not designed for the GFX sensor size, rather, it was adapted to the GFX because the image circle was able to cover the sensor size. However, the 19mm is designed to resolve the larger sensor size with sharpness to match with very little vignette wide open. I compared it to the 23mm (widest available until the 20-35) and the quality is the same. I'm happy with the range I have now considering I don't shoot much wide angle hence I haven't purchased the wide angle zoom.
I am pretty sure I shot that at f4 to get the best useable wide open f stop. using the (off the menu) 2.8 shows image degradation, CA and soft corners, f4 does not. hope that helps!
yes! opens up past f4, judging from expose it looks more or less like a full stop, the way it generally behaves at that setting is very much like most fast glass: wide open has a "look" start closing down and the general optical issues start to go away, which in the case of this AstrHori is f4 already, pretty much perfect. its actually a refreshingly honest way to market a lens.
