The French blog Phototrend ( google translation here ) visited the Samyang factory in South Korea. be sure to check out his website to see the images.

SonyAlphaBlog posted a full review of the new 35-150mm f/2.0-2.8 lens (with the equivalent Tamron lens comparison) and concluded:

Both lenses are very similar , the Tamron is however a bit better on the below aspects

AF a bit more reliable
AF in video when zooming
Sharpness in the corners on 61Mpix
More fluid zoom ring
More user friendly update process

Is that worth 500 euros more ? it all depends of what you do but for 80% of the users the Samyang will be “good enough”

Get the Samyang 35-150mm at Amazon US&EU .