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Rokinon 14mm F2.8 IF ED UMC

Reviews Views Date of last review
1 1,727 Tue January 22, 2019
Recommended By Average Price Average User Rating
100% of reviewers $220.00 9.00
Rokinon 14mm F2.8 IF ED UMC

Rokinon 14mm F2.8 IF ED UMC
Rokinon 14mm F2.8 IF ED UMC
Rokinon 14mm F2.8 IF ED UMC
Rokinon 14mm F2.8 IF ED UMC
Rokinon 14mm F2.8 IF ED UMC Rokinon 14mm F2.8 IF ED UMC

The 14mm f/2.8 IF ED UMC Lens for Pentax K from Rokinon gives you a 117 view with dramatic results when used with a full frame digital camera or 35mm film camera. With hybrid aspherical lenses, it produces sharp images with minimum distortion and chromatic aberrations, sacrificing some vignetting as a result. This manual focus 14mm lens focuses as close as 0.9' / 28cm from the lens, and has a built-in petal-type lens hood.

This lens features a mechanical aperture coupling that permits the use of aperture priority and automated exposure modes, as well as the ability to control the aperture setting with Pentax DSLRs.

This lens is constructed with two ED lens elements, one hybrid aspherical lens element and one glass aspherical lens element.

Super multi-layer coating (UMC) to reduce flare and ghost images.
Buy Lens: Buy the Rokinon 14mm F2.8 IF ED UMC
Mount Type: Pentax KA

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Community Manager

Registered: March, 2007
Location: Toowoomba, Queensland
Posts: 23,604

4 users found this helpful
Lens Review Date: January 22, 2019 I can recommend this lens: Yes | Price: $220.00 | Rating: 9 

Pros: Sharp throughout the frame, ultra-wide angle on full-frame camera, well-controlled aberrations, wide aperture, lightweight, relatively compact, tight tolerances to focus ring
Cons: not autofocus, mixed plastic/metal construction, not much image 'pop'
Sharpness: 9    Aberrations: 9    Bokeh: 8    Handling: 8    Value: 10    Camera Used: K-1   

This is a surprisingly excellent lens, regardless of its relatively economical price point for an ultra-wide angle prime lens suitable for the Pentax full-frame camera. This Korean made lens is well-put together manual focus lens, for a mixed plastic and metal construction, which makes it relatively light, but also feeling slightly on the cheap side. One feature that allows the user to overlook this is the auto-aperture setting on the aperture ring, which many other versions do not seem to have (it is refreshing to have an A lens version rather than have to settle for an M lens). The focusing ring is nicely dampened and is tightly fitted; no parts of the lens feel loose or flimsy. There is no facility to apply any filter to the lens.

The sharpness rendered from this very wide angle rectilinear lens is actually very impressive, from f/2.8 in the centre, to everywhere in the field from f/5.6; an amazing feat for such a lens. Beyond that, the CA and distortion control in this lens is also truly masterly. As expected, if there are such strengths, there has to be a weakness, and in this lens it is vignetting. Over 1.5 stops in the edges at f/2.8 and just under 1 stop at f/5.6, but it is still registrable at about 0.5 stop at all smaller apertures until diffraction sets in at f/22. The results from the lens are good to very good, subjectively. I don't see them having the same 'pop' as the Pentax DA 15 Limited; they are more 'clinical' than brilliant. So they may need a significantly more degree of post-processing to make the images more exceptional.

Most lenses of this ilk and fast aperture are bulky and heavy. That is another remarkable attribute to the Rokinon 14mm f/2.8; it is only 87 x 93.98 mm (3.43 x 3.7 in.) in size and weighs just 450 grams (1 lb), comparable to the Pentax DA 14mm f/2.8 lens, yet has full-frame capability (over 115 degree field of view). See the comparison between the two lenses here: The current full frame ultra-wide lens, the Pentax DFA 15-30mm f/2.8, is in comparison sized at 98.5 x 143.5 mm (3.9 x 5.6 in.) and weighs in at a whopping 1040 grams (2.3 lb).

Overall this lens is a stunner in all aspects other than vignetting, so it is well worth a consideration as an alternative to the DFA 15-30 at the wide end, waiting for any DFA wide angle prime that may in production in the coming years.
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