Swarovski EL vs Zeiss SFL

[Finnman]

Has anyone compared the optical quality between these two? I can get 10x42 EL or 10x50 SFL for the same price. I've read a lot of pro's and con's of each. I guess I'll let my eyes decide. Just wondering if anyone has looked through both?

 

[Chrstn]

Both are excellent optics, but the 10×50 Zeiss SFL 10x50 will give you a brighter image and better low-light performance because of the larger 50 mm objectives and bigger exit pupil. The 10×42 Swarovski EL 10x42 will be easier to hold, a bit sharper edge-to-edge with flat-field optics, and more comfortable for all-day use
10x50 (SFL): brighter, better in dawn/dusk light, slightly deeper image
10x42 (EL): superb sharpness and contrast, lighter and easier to use all day