Amin
Hall of Famer
I don't shoot ultrawide angle very often but decided to pick up the Voigtlander 21mm f/4 Color Skopar. Priced at $419 (got mine used for $330) and weighing just 136g, it wasn't a huge burden for my wallet or shoulder.
My brother lent me his Leica 21mm f/1.4 Summilux Aspherical, a slightly more expensive and heavier lens, to do a quick, informal comparison. The Leica 21mm f/3.4 would have been a better comparison with my lens, or the Voigtlander 21mm f/1.8 with my brothers, but these are the two 21mm lenses I had on hand.
Here are the two lenses side by side:
Mounted:
That's a lot of glass (Leica):
Before I show some 100% crops, you'll want to use the dropdown menu in the far bottom left corner of this page to choose "LeicaPlace Default for High-Res Displays" if you want to view original size (100% images). Otherwise they will be scaled down to about 60% view.
Here's a shot at f/8, Leica on the left and Voigtlander on the right. I was using the camera profile for the Leica 21mm Elmarit to do corrections for the Voigtlander.
As you can see, the Voigtlander lens, even at f/8, isn't completely corrected by the lens profile I applied. There is noticeable color shift at the edges.
Here is the crop from about 2/3 of the way towards the top of the center of the frame, which happens to be the point of focus:
Extreme upper left corner:
Upper right corner, where some purple fringing is evident from the Summilux but not the Color Skopar:
Lower right corner:
Another scene, this time at f/4 (wide open for the Voigtlander):
Center crop:
Lower left corner:
Overall, the Summilux is clearly superior, but the diminuitive Voigtlander is also excellent.
My brother lent me his Leica 21mm f/1.4 Summilux Aspherical, a slightly more expensive and heavier lens, to do a quick, informal comparison. The Leica 21mm f/3.4 would have been a better comparison with my lens, or the Voigtlander 21mm f/1.8 with my brothers, but these are the two 21mm lenses I had on hand.
Here are the two lenses side by side:
Mounted:
That's a lot of glass (Leica):
Before I show some 100% crops, you'll want to use the dropdown menu in the far bottom left corner of this page to choose "LeicaPlace Default for High-Res Displays" if you want to view original size (100% images). Otherwise they will be scaled down to about 60% view.
Here's a shot at f/8, Leica on the left and Voigtlander on the right. I was using the camera profile for the Leica 21mm Elmarit to do corrections for the Voigtlander.
As you can see, the Voigtlander lens, even at f/8, isn't completely corrected by the lens profile I applied. There is noticeable color shift at the edges.
Here is the crop from about 2/3 of the way towards the top of the center of the frame, which happens to be the point of focus:
Extreme upper left corner:
Upper right corner, where some purple fringing is evident from the Summilux but not the Color Skopar:
Lower right corner:
Another scene, this time at f/4 (wide open for the Voigtlander):
Center crop:
Lower left corner:
Overall, the Summilux is clearly superior, but the diminuitive Voigtlander is also excellent.