Summary: Overall it is very difficult to characterise this lens. It is certainly a specialist optic on account of being manual-only, but it also looks and feels great. It’s a bit heavy but you are getting an ultra-bright f/1.4 maximum aperture and well-corrected optical performance.
Summary: If you're looking for a sharp, moderate wide angle with a fast aperture and can live with focusing manually, you need look no further. The performance at f/1.4 is amazing for a lens that costs under £400, and this is with good build quality, low CA, distortion and falloff that is typical of lenses...
Pros: Very inexpensive, Excellent sharpness, even at f/1.4, Even better sharpness when stopped down a little, Low CA and distortion, Good build
Cons: Contrast suffers when shooting into the light
Excerpt: Compatible with both full-frame and APS-C D-SLRs, the Samyang 35mm f/1.4 AS USC offers a 52.5mm film equivalent when coupled to a camera with a 1.5x crop factor and features a super-wide f/1.4 maximum aperture.
Excerpt: Samyang's 35mm f/1.4 AS USM features a fast f/1.4 maximum aperture that's two-thirds of a stop faster than an f/1.8. This wider opening lets more light in, and is ideal for using faster shutter speeds in low-light situations or producing slightly more blur behind subjects.
Summary: The Samyang 35mm f/1.4 AS UMC lens is a pleasure to use. It is well constructed and handles beautifully. What's most impressive is the high optical quality in all fields in a lens that costs roughly a quarter of the price of its competitors.
Samyang 35mm f/1.4 AS UMC (EOS) - Full Format Format Review / Test Report
24 June 2011
Conclusion: Samyang continues to surprise us regarding the quality of their recently released products. The full format Samyang 35mm f/1.4 AS UMC is capable of delivering a very high quality straight from f/1.4. The contrast level is a bit reduced at max. aperture though.
Samyang 35mm f/1.4 AS UMC (EOS) - APS-C Format Review / Lab Test Report
23 June 2011
Conclusion: Samyang continues to surprise us regarding the quality of their recently released products. The full format Samyang 35mm f/1.4 AS UMC is capable of delivering a very high quality straight from f/1.4 - at least within the tested APS-C scope. The contrast level is a bit reduced at max.
Excerpt: Full frame 35 mm lenses with f/1.4 aperture are very interesting and important photographic devices. You can say they are as important as 1.4/50 class standards – but definitely less popular. Why are they so important and interesting then? Mainly because of their versatility.