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Rokinon 85M-P 85mm F1.4 Aspherical Lens for Pentax (Black)

by Rokinon
| 4 answered questions

List Price: $349.00
Price: $299.00 & FREE Shipping. Details
You Save: $50.00 (14%)
Only 13 left in stock (more on the way).
Ships from and sold by Amazon.com. Gift-wrap available.
Want it tomorrow, April 25? Order within and choose One-Day Shipping at checkout. Details
  • Mounts directly to your Pentax DSLR camera - no additional adaptors required
  • Compact and lightweight
  • Aspherical type lens provides clear and sharp images
  • Aperture Range: F1.4 - 16
  • 28.3 degree angle of view
13 new from $299.00 4 used from $210.43 1 refurbished from $269.00

Frequently Bought Together

Rokinon 85M-P 85mm F1.4 Aspherical Lens for Pentax (Black) + Zeikos ZE-LC72 72mm Plastic Snap On Lens Cap Black + Tiffen 72mm UV Protection Filter
Price for all three: $316.31

These items are shipped from and sold by different sellers.

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Special Offers and Product Promotions

Style: Pentax
  • Buy Used and Save: Buy a Used "Rokinon 85M-P 85mm F1.4 Aspherical Lens for Pentax..." and save 39% off the $349.00 list price. Buy with confidence as the condition of this item and its timely delivery are guaranteed under the "Amazon A-to-z Guarantee". See all Used offers.
  • Buy Refurbished and Save: Buy a Refurbished "Rokinon 85M-P 85mm F1.4 Aspherical Lens for Pentax..." and save 22% off the $349.00 list price. Buy with confidence as the condition of this item and its timely delivery are guaranteed under the "Amazon A-to-z Guarantee". See all Refurbished offers.

Technical Details

Style: Pentax
  • Brand Name: Rokinon
  • Model: 85M-P
  • Lens Type: Telephoto
  • Minimum focal length: 85.00 millimeters
  • Maximum focal length: 85 millimeters
  See more technical details

Read about our customers' top-rated lenses and cameras on our review pages: Lenses, Digital SLR Cameras, Compact System Cameras

Product Details

Style: Pentax
  • Product Dimensions: 3.5 x 3 x 3 inches ; 1 pounds
  • Shipping Weight: 2 pounds (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B0025F4AWW
  • Item model number: 85M-P
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (273 customer reviews)
  • Date first available at Amazon.com: April 4, 2009

Product Description

Style: Pentax

From the Manufacturer

The Rokinon 85mm F1.4 Aspherical Lens is razor sharp and crystal clear for photo and video.  It is widely used as a portrait lens to shoot ultra-bright & vivid portrait pictures.  Rokinon’s 85mm lens stacks up extremely well against the Canon EF 85mm f/1.2 and against the Nikon 85mm f/1.4.  It is also the least expensive lens of its kind in the market!  The lens is manual focus and the aperture needs to be controlled directly from the lens, but at a cost of less than $300, how can you go wrong? 

The Rokinon 85mm lens is made with mostly glass and aluminum components and the build quality is superb.   Its focusing is silky smooth with an internal focusing (IF) mechanism so that the physical size remains constant during focusing.  There are little or no chromatic aberrations and Bokeh is just about perfect.  The lens comes complete with a removable lens hood, lens caps, lens pouch, instruction manual and one year warranty.   The lens is available in the following mounts:  Canon, Nikon, Pentax, Sony & Olympus 4/3.  There is also a slightly more expensive version (Model # 85MAF-N) for Nikon that features a built-in focus confirm chip.  
See the uploaded video that was taken with this lens.  Below are detailed specifications and some sample photos taken with this lens.

ROKINON 85mm F/1.4 Aspherical Lens
Aperture Range:
F1.4 ~ 16
Optical Construction:
9 Elements in 7 Groups
Min. Focusing Distance:
3.3ft (1.0m)
Focus Type:
Filter Size:
Mounts Available:
Canon, Nikon, Pentax, Sony, Olympus
Angle of View:
28.3 Degrees
1.4 lbs (20 oz.)

Sample Photos
http://g-ecx.images-amazon.com/images/G/01/electronics/lenses/rokinon/85M/85mm_FireFighter_2._.jpg http://g-ecx.images-amazon.com/images/G/01/electronics/lenses/rokinon/85M/Customer_Sample._.jpg http://g-ecx.images-amazon.com/images/G/01/electronics/lenses/rokinon/85M/GrandCentral._.jpg
http://g-ecx.images-amazon.com/images/G/01/electronics/lenses/rokinon/85M/85mm_Broadway._.jpg http://g-ecx.images-amazon.com/images/G/01/electronics/lenses/rokinon/85M/seaport._.jpg http://g-ecx.images-amazon.com/images/G/01/electronics/lenses/rokinon/85M/Building._.jpg


Product Description

The Rokinon 85mm f/1.4 Manual Focus Lens for Pentax is an ultra-bright lens with a maximum aperture of f/1.4. Although you can only use this lens in manual focus mode, it is fully compatible with the automated features available with digital SLR cameras. It is compact and lightweight, and offers the ideal focal length and bright aperture for use as a portrait lens.

Customer Questions & Answers

Customer Reviews

The lens is fairly hefty and build quality feels very solid.
John Michael Harris
The Manual focusing ring is well damped and smooth as silk, making accurate focusing easy.
Rocco Y.
This lens produce very sharp images and has buttery smooth bokeh.

Most Helpful Customer Reviews

158 of 162 people found the following review helpful By E. J Tastad TOP 1000 REVIEWERVINE VOICE on September 29, 2009
Style Name: Pentax
Image quality from wide open
Construction quality
Video use

Image quality doesn't improve a lot stopping down the aperture
Included 72mm lens cap is junk
Hood not positive feeling
Focusing at 85mm f/1.4 is difficult
About 1/3rd stop darker than my other 85mm lenses

Bottom Line:
Buy this lens now if you want a superb manual focus long portrait lens of modern design and don't want to empty your pocket book. It performs like a name brand 85mm f/1.4 at a fraction the price. You must be proficient with manual focus to use this lens at f/1.4 (or be willing to learn).

The lens produces nice usable portraits from wide open. There is a pleasing softness too it, but the eyes appear nice and sharp and the bokeh transitions are smooth. Specular highlights in the bokeh are smooth and fairly uniform with minimal rings or donuts. The modern aspherical lens design takes care of most spherical aberration. I bought this lens solely for f/1.4-f/5.6 usage. If I want to use the f/4+ range I will use my f/4 zoom, so wide open performance of the 85mm was critical too me, otherwise it added nothing over my slower zoom. I would not be afraid to use this lens at f/1.4 for portraits.

Wide open it does show a small amount of purple fringing around very high contrast subjects, but it almost has to be blown out next to a darker object for it to be noticeable. The lens also has your typical green/red chromatic aberrations (CA) visible in the bokeh, which I think is longitudinal CA. This is actually fairly typical of large aperture lenses, even good lenses. It is generally not intrusive. The lens is also a tad darker than my other 85mm lenses, maybe 1/3rd f/stop.
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69 of 71 people found the following review helpful By J. Smith on April 13, 2010
Style Name: Nikon
I had really never heard of this company or their lens until I happened upon a few web threads from various forums, specifically fredmiranda and dpreview.

After seeing some amazing images posted from owners of pretty much every camera brand and seeing great bokeh and sharpness comparison shots, I knew I had to get one.

Just got it today (April 13) and it's awesome, awesome, awesome, especially given the price.
I'm using my lens on a D700.


OPTICS - Outstanding. Seriously. I started shooting this thing wide open at f/1.4 and it's just great. Before this lens, one of my more enjoyable lenses was the outstanding Nikon 105mm f/2.5 AI-S. I think this lens, though, beats it. It's a more comfortable length for me, and the build quality is pretty high - and the bokeh is just amazing.

Did I say amazing? How about just delicious. Creamy, smooth, great transitions from focus to unfocused areas. It's great after some initial testing and already I have a shot of my young daughter that is frame-worthy (straight from the D700 using RAW and "normal" profile).

BUILD QUALITY - Well, you don't get something for nothing, but you can come very close with this lens. It looks like it's a combination of heavy plastic and metal. The focus ring is of adequate size and mine has absolutely no play in it - damping is pretty good. And hurray for Nikon, Rokinon made the lens focus the "right" way, so that AF confirmation in your camera is going to match which way you actually need to turn the lens.

The lens hood is probably the weakest part - it's pretty flimsy, cheap, falls off too easy and is hard to line up to reverse for storage. But hey, this thing is dirt cheap and gives amazing, inspiring results.
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84 of 90 people found the following review helpful By Cottage Photography on June 21, 2009
Style Name: Nikon Verified Purchase
I have the Rokinon version of this lens. It is great! I use it on a Nikon D700 and have compared it with the Nikon AF 85mm f/1.4 (which I had rented for a weekend to test) and I much prefer this lens to the Nikon.

When I used the Nikon AF version, I found myself having to manually focus to get the plane of focus just where I wanted it and so decided I really didn't need to pay extra (almost a $1k more) for the AF feature. So the only thing that would make sense for paying more was if the Nikon's Image Quality was significantly better... it wasn't. In fact, at f/1.4 (which is where you will be shooting this lens 99% of the time, else why buy an f/1.4 lens) I found the Rokinon/Opteka to be sharper and have more contrast than the Nikon.

There are a lot of reviews to be found on the inter-net for this lens. Some express concern for obtaining a good "copy". I am sure this lens is not as consistent in its build quality as Nikon is, but I got lucky right out of the chute with my first one. It is amazingly sharp, mechanically sound, and the IQ is just what I needed it to be (bokeh is wonderful).

Bought mine through Amazon from Cameta Camera. Great store with quality customer service.

For the price, you really can't go wrong.
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116 of 135 people found the following review helpful By Directed Energy on November 16, 2009
Style Name: Pentax Verified Purchase
If possible, I would RATE THIS ITEM 3.5 STARS

I have been using the "Rokinon 85mm f/1.4 Aspherical Lens for Pentax K20D" for about a month and have gotten to know the lens well. On the whole, the optics are good but what degrades the users experience with this lens has less to do with the optics and everything to do with the lens housing mechanics and matching accessories.

Optically, I would rate the lens a B+/A-. As a previous reviewer has noted, the image sharpness does not improve much as you stop down the lens, but the lens is fairly sharp to begin with. What's important for such a fast lens is that wide open the images look nice and the Rokinon 85mm f1.4 lens has that covered. I have noticed that the lens is not equally sharp in all four corners of the field. Instead, the upper left corner is slightly softer than the lower right corner (see photo). This sort of minor zonal error suggest to me that Samyang, the manufacturer of this lens still has some work to do in terms of Quality Control and Process Engineering.

In terms of exposure accuracy, I find that the Rokinon 85mm f1.4 lens shoots a bit on the underexposed side. For that reason, I find myself having to adjust the eV scale on the K20D about +1/3 of a stop. If you are in a hurry, the extra time needed to set the proper exposure compensation can be an issue, as the time to adjust takes away from photographing the subject and can cause lost opportunities. This needed eV adjustment is also why some of the photos I have taken with the lens differ from average to nice. I wonder if the Rokinon 85mm f1.4 lens would be more accurately advertised if it were labeled as having a maximum aperture of f1.7 as appose to being a true f1.4.

From a mechanical perspective the lens is solid and robust.
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