07-21-2015, 10:12 PM
I still don't know if that comparison would be better placed next to the threads for Sigma 24/1.4 A. But since I compared Nikon with Sigma lenses, I thought the Nikon forum would be the right one.
What I did was very unscientific. I wanted to know, how bad the "weak" corners really are. I didn't use a chart for that but a fence which had a lot backlight and some structure in it. Also a good indicator for nervous bokeh.
I compared those lenses:
Here's the whole picture
![[Image: i-Z34TRSK-M.jpg]](https://sojujo.smugmug.com/photos/i-Z34TRSK/0/M/i-Z34TRSK-M.jpg)
First the centers of the fast primes wide open.
Nikon 24/1.4 @ f/1.4
![[Image: i-kj6FM6D-L.jpg]](https://sojujo.smugmug.com/photos/i-kj6FM6D/0/L/i-kj6FM6D-L.jpg)
Then the Sigma 24/1.4 Art @ f/1.4
![[Image: i-DtVjBdg-L.jpg]](https://sojujo.smugmug.com/photos/i-DtVjBdg/0/L/i-DtVjBdg-L.jpg)
To me, the Sigma has a little bit more sharpness and contrast. Now let's take a look at those nasty corners.
First Nikon @ f/1.4
![[Image: i-JsJ7Svm-L.jpg]](https://sojujo.smugmug.com/photos/i-JsJ7Svm/0/L/i-JsJ7Svm-L.jpg)
Then the Sigma @ f/1.4
![[Image: i-hw38JhS-L.jpg]](https://sojujo.smugmug.com/photos/i-hw38JhS/0/L/i-hw38JhS-L.jpg)
Of course, no auto-correction of CA involved, otherwise it would be a little pointless. If it's doing alright at f/1.4, I was curious how my other 24 mm capable lenses would do.
First The Sigma 24/1.4 @ f/4
![[Image: i-JQTmZqQ-L.jpg]](https://sojujo.smugmug.com/photos/i-JQTmZqQ/0/L/i-JQTmZqQ-L.jpg)
Now it's zooming colleague 24-105/4 Art (so that's wide open for that lens)
![[Image: i-ktsdBK8-L.jpg]](https://sojujo.smugmug.com/photos/i-ktsdBK8/0/L/i-ktsdBK8-L.jpg)
And least the 14-24/2.8 @ f/4
![[Image: i-2mGgNFg-L.jpg]](https://sojujo.smugmug.com/photos/i-2mGgNFg/0/L/i-2mGgNFg-L.jpg)
I don't want to bore you with all center and corner shots. Anybody interested can see for himself: 24 mm comparison gallery I know, it's not very comfortable but the EXIF-data is included and I tried to give the filenames a little bit of sense.
Probably I'll add some night-shots before I sell the Nikkor 24/1.4 but I don't expect dramatic surprises.
What I did was very unscientific. I wanted to know, how bad the "weak" corners really are. I didn't use a chart for that but a fence which had a lot backlight and some structure in it. Also a good indicator for nervous bokeh.
I compared those lenses:
- Sigma 24/1.4 Art
- Sigma 24-105/4 Art @ 24 mm
- Nikkor 24/1.4 G which I used a lot
- Nikkor 14-24/2.8 G which I also use a lot
Here's the whole picture
![[Image: i-Z34TRSK-M.jpg]](https://sojujo.smugmug.com/photos/i-Z34TRSK/0/M/i-Z34TRSK-M.jpg)
First the centers of the fast primes wide open.
Nikon 24/1.4 @ f/1.4
![[Image: i-kj6FM6D-L.jpg]](https://sojujo.smugmug.com/photos/i-kj6FM6D/0/L/i-kj6FM6D-L.jpg)
Then the Sigma 24/1.4 Art @ f/1.4
![[Image: i-DtVjBdg-L.jpg]](https://sojujo.smugmug.com/photos/i-DtVjBdg/0/L/i-DtVjBdg-L.jpg)
To me, the Sigma has a little bit more sharpness and contrast. Now let's take a look at those nasty corners.
First Nikon @ f/1.4
![[Image: i-JsJ7Svm-L.jpg]](https://sojujo.smugmug.com/photos/i-JsJ7Svm/0/L/i-JsJ7Svm-L.jpg)
Then the Sigma @ f/1.4
![[Image: i-hw38JhS-L.jpg]](https://sojujo.smugmug.com/photos/i-hw38JhS/0/L/i-hw38JhS-L.jpg)
Of course, no auto-correction of CA involved, otherwise it would be a little pointless. If it's doing alright at f/1.4, I was curious how my other 24 mm capable lenses would do.
First The Sigma 24/1.4 @ f/4
![[Image: i-JQTmZqQ-L.jpg]](https://sojujo.smugmug.com/photos/i-JQTmZqQ/0/L/i-JQTmZqQ-L.jpg)
Now it's zooming colleague 24-105/4 Art (so that's wide open for that lens)
![[Image: i-ktsdBK8-L.jpg]](https://sojujo.smugmug.com/photos/i-ktsdBK8/0/L/i-ktsdBK8-L.jpg)
And least the 14-24/2.8 @ f/4
![[Image: i-2mGgNFg-L.jpg]](https://sojujo.smugmug.com/photos/i-2mGgNFg/0/L/i-2mGgNFg-L.jpg)
I don't want to bore you with all center and corner shots. Anybody interested can see for himself: 24 mm comparison gallery I know, it's not very comfortable but the EXIF-data is included and I tried to give the filenames a little bit of sense.
Probably I'll add some night-shots before I sell the Nikkor 24/1.4 but I don't expect dramatic surprises.