Re: Sony FE 24mm f/1.4 GM Lens Big Bronco testing thread plus more
GMPhotography wrote: Newtographer504 wrote: Jannik Peters wrote:
I shot some more infinity landscapes at f/5.6 today and I agree that the last 10-15% don't reach the midframe and center resolution. Probably a mix of slight astigmatism and corrected LaCA & vignetting. Not an issue in practice for me, the corners are still plenty sharp and perfectly fine for my landscape photography but not on a reference level.
Have you experienced issues with the 24GM hunting for focus, wide open, in AF-C when you place the “flexible spot small” on the extreme corners? I have to use DMF or AFS or it has a tough time focusing at the corners...maybe an A7r3 issue not the lens?
Aside from that, the lens has been great for family shots. It’s been through hell this past week at Disney World, even took the ride through Space Mountain in a Billingham Small, no sweat, the lens is pretty tough.
Your probably outside the PDAF zone. On the A7rIII it’s only 67 percent of the full frame . So the corners are outside of that reason it will have a hard time. On the A9 and A7III it’s 93 percent of the frame. So this is a camera limitation not a lens
Hopefully next upgrade they will update this to 93 percent
Understood, thanks. Also the focal length and speed of the 24GM is perfect for a dinner table.
Just comparing the MTF published by Sony to Leicas highest resolving wide angle, the 28/1.4: the Sony MTF kills wide open. Here’s the charts from Sony and Leica’s websites.
Nov 04, 2018 at 04:26 AM
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