Kamis, 23 April 2015

Rokinon FE14M-C 14mm F2.8 Ultra Wide Lens for Canon (Black)

Rokinon FE14M-C 14mm F2.8 Ultra Wide Lens for Canon (Black)..


Rokinon FE14M-C 14mm F2.8 Ultra Wide Lens for Canon (Black)

Buy Rokinon FE14M-C 14mm F2.8 Ultra Wide Lens for Canon (Black) By Rokinon

Most helpful customer reviews

146 of 151 people found the following review helpful.
5One of the best wide angle primes at a bargain price.I
By K. Dardashti
I am using this lens on a Canon 5D Mark II. I have several zoom lenses in this range, but was looking for a fast, superwide prime. The choice would be this or the Canon 14L II. This is the same as the Samyang, rebranded.
After receiving the lens, I ran some tests against 16-35 2.8, and sigma 12-24, and was floored. The corner to corner sharpness of this lens is fantastic. I peaks at around 5.6, but the corners at 2.8 are better than the other 2 lenses at f11. the microcontrast and color is very good. The barrel distortion is hefty, and complex with a mustache distortion, however, often not well visible in landscape, but visible in architectural images. It is correctable using a $25 program called ptlens, and there is also a profile for acr 6.1 out there, which works great. It is an absolute bargain. I purchased a focus confirmation chip for 14 from ebay, glued it on, and I get focus confirmation too.

feb 2012 update
I have had this lens along side Nikon 14-24 2.8, adapted to canon with use on my 5d2, and at 2.8, the rokinon is sharper in the corners has less flare and less CA than the mighty Nikon. However the nikon has less distortion, and catches up by f 5.6 even in the corners. Additionally, do not rely on the distance markings on the focus ring. On my copy infinity focus is achieved at the 3 meter marking. 3 meters is achieved at 2m. for my style of shooting I dont find this troublesome at all. for landscape shooting I focus with live view anyway. for hand held, my focus is between 1 and 2 meters most of the time and it works fine.

71 of 77 people found the following review helpful.
4Sharpest lens I ever used, but check for issues
By J. Kim
This is the new version with the auto-exposure chip (only for Nikon mount) and UMC coating. My impressions:

Pros:
-Sharp, sharp, sharp. Even at f/2.8, this lens is sharp. At its sharpest aperture, f/5.6, it's sharp corner-to-corner on an APS-C camera.
-Very good build quality. Solid weighty feel, brass mount, and smooth dampened focus ring.
-By far the least expensive 14mm around.
-No problems with auto-exposure or focus confirmation (including the electronic rangefinder function on newer Nikon bodies)
-FX or DX

Cons:
-Cheap rear cap fits a little loose. I swapped mine with a Nikon cap.
-Has significant mustache-type barrel distortion in the middle of the frame. Not a lens for architectural photography. However, this can be mostly corrected in post-processing (with the $25 software PTLens, or user-created Lightroom profiles on the net).

Some considerations:
-Like some other ultra wide-angle lenses, the front element is large and bulbous, and the hood is integrated and non-removable. You can't attach any filters, so this lens requires more care to avoid scratches on the front element. The lens cover should be kept on at all times when not in use.
-Although the lens works great with my DX camera, it's really meant for FX cameras. On my DX Nikon the full-frame equivalent focal length is 21mm, which sits in an odd space between UWA and WA. DX users should probably consider the Tokina 11-16mm f/2.8 or Sigma 10-20mm instead for their UWA needs. However, this lens beats both for corner-to-corner sharpness.

UPDATE:
I sold my Nikon AE copy and re-purchased this lens for Canon mount, for a Canon 5D body. My new copy was just as sharp as my previous copy in the center. However the lens showed de-centering on the right side, which was significantly blurrier than the left even when stopped down to f/8 or f/11. This area would not be visible on an APS-C body, but was visible enough on the 5D that I returned it for a refund. I deducted one star from my rating until I can test another copy.

68 of 78 people found the following review helpful.
5Excellent Value - the best in its class
By Sanity Advocate
I purchased this lens several months ago to use on my Canon 5d mark 1 camera. This is by far the sharpest, most flare-and color fringing-resistant lens in its class. I owned the Nikon 14-24mm lens and this lowly lens beats the Nikon hands down on all counts, exept vignetting (easily correctable in Photoshop) and distortion - but get a PT Lens software, which has this lens correction pre-programmed in its database and distortion becomes a non-issue.

Advantages:

Solidly built, operates smoothly, light (under 450 grams), much more compact than Nikon 14-24mm, incredible resolution, color balance and color fringing resistance - simply crushes Nikon 14-24mm (my personal experience and comparison and also see independent reviews on the Net), no flare, even when shooting straight into the Sun.

Disadvantages:

Fully manual - no auto anything, including the aperture (not an issue for this ultra-wide lens and actually is an advantge, since it greatly improves reliability).

No depth-of-field scale - not an issue for this ultra-wide lens; setting the focus to 1 meter and stopping down to f11 gives you the maximum depth-of-field (o.5 meters to infinity) at best optical performance. For wide-open shooting focus the lens manually.

Vignetting, especially at wide apertures - easily correctable in Photoshop, and gone by f11.

Significant complex distortion (5%) - get a PT Lens software, which has this lens' complete correction pre-programmed in its database and distortion becomes a non-issue.

Aperture blades may become sticky in temperatures below 32 degrees F (0 deg. C) - no significant impact, because the aperture control is fully manual. If this occurs, rotate the aperture ring back and forth a few times to take care of this in the field; there is no need to even remove the lens from the camera.

I highly recommend this lens.

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