In April, 2014, the Samyang 10mm F2.8 ED AS NCS CS made its debut as a premium ultra-wide angle DSLR lens with some of Samyang's latest optical technologies, including the Nano Coating System.

Widest rectilinear prime available for Pentax; Exceptionally sharp across the frame; Fast F2.8 aperture; Unobtrusive barrel distortion; Good contrast; Minimal chromatic aberrations; Resistant to ghosting; Nice starburst effect at night; Compact and easy to carry; Automatic aperture control (full P,...

Prominent vignetting at F2.8 and F3.5; Difficult to focus on nearby subjects through the viewfinder; Harsh bokeh / sub-optimal for close-ups; Not possible to use lens filters; Prone to harsh flare in strong; direct light; No in-camera lens corrections; Only 1 year of warranty in the US; Potential...

This manual focus wide angle lens for APS-C format cameras, offers a fast angle of view equivalent to a 15mm lens, with a relatively fast maximum aperture of f/2.8 for a budget launch price of around £429.

I bought this lens to use with my Nikon D7100 for milky way photography. The lens exceeded my expectations-- it was easy to use and the images were phenomenal-- a great angle of view and sharp detail. I could not be happier.

I'm no expert, but at the first week of tinkering with this, its heavy, huge and I can't seem to get this to perfectly focus on anything. There's always color noise up close - I've tried manual settings, auto, indoor in lower light and outdoors in sunlight, JPG and RAW modes, and when I zoom in on...

another good lens from SamYang/Walimex/Rokinon

sharp; contrasty; nice format this is a very good Ultra Wide and much better than Sigma 10 20 at 10mm It is also better than Sigma 8 16 at 10mm (but Sigma is also very very good

like every SY distance scale needs to be calibrated with Live View/ Contrast detect; but after that has been done...perfect

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Good value for money; Excellent sharpness in the centre from maximum aperture; Very good sharpness towards the edges stopped down to f/4 or beyond; Hyperfocal scale; Low CA levels; Good build

Wavy distortion pattern may be difficult to correct in image editing software; No hard infinity stop

Outstanding lens for its price. Manual zoom is easy as long as the subject is not moving. For it's price is unbeatable.

In April, 2014, the Samyang 10mm F2.8 ED AS NCS CS made its debut as a premium ultra-wide angle DSLR lens with some of Samyang's latest optical technologies, including the Nano Coating System.

Widest rectilinear prime available for Pentax; Exceptionally sharp across the frame; Fast F2.8 aperture; Unobtrusive barrel distortion; Good contrast; Minimal chromatic aberrations; Resistant to ghosting; Nice starburst effect at night; Compact and easy to carry; Automatic aperture control (full P,...

Prominent vignetting at F2.8 and F3.5; Difficult to focus on nearby subjects through the viewfinder; Harsh bokeh / sub-optimal for close-ups; Not possible to use lens filters; Prone to harsh flare in strong; direct light; No in-camera lens corrections; Only 1 year of warranty in the US; Potential...

This manual focus wide angle lens for APS-C format cameras, offers a fast angle of view equivalent to a 15mm lens, with a relatively fast maximum aperture of f/2.8 for a budget launch price of around £429.

Gary Wolstenholme reviews the Samyang 10mm f/2.8 ED AS NCS CS ultra wide-angle lens with Nano Coating System.

Good value for money; Excellent sharpness in the centre from maximum aperture; Very good sharpness towards the edges stopped down to f/4 or beyond; Hyperfocal scale; Low CA levels; Good build

Wavy distortion pattern may be difficult to correct in image editing software; No hard infinity stop