Samyang XP 50mm f/1.2 at a glance:

• EF-Mount Lens/Full-Frame Format
• Aperture Range: f/1.2 to f/16
• One Aspherical Element
• One High Refractive Index Element
• Ultra Multi-Coating
• Manual Focus Design
• Aluminum Lens Housing
• Nine-Blade Diaphragm

ePhotozine reviewed the new Samyang XP 50mm f/1.2 (also branded Rokinon).

The Samyang XP 50mm f/1.2 seems to be a performing lens, with low CA, excellent sharpness, low distortion, a great bokeh, and no flare.

From the conclusion:

There is very little difference in brightness between a f/1.4 and f/1.2 lens. The wider aperture also means more difficulty in focusing, but only because the point of focus is so fine. In reality, if used carefully with magnifying aids then it is highly accurate. The lens is also very bulky and very heavy, certainly quite huge compared to a conventional 50mm f/1.4.

However, the price is reasonable and the standard is very high, so there are clear benefits for those for whom the difference is significant. In any event, the performance is exemplary. Read the review

ePhotozine’s sample pictures shot with the new Samyang lens can be seen here.

The Samyang XP 50mm f/1.2 can be pre-ordered for $999 at B&H Photo and Adorama.