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Nikon AI Lens to Pentax PK Mount Adapter Ring for PK K20D K200D K-M

Digg(100) ( 8 Reviews)
US $42.99
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By using this MASSA Nikon AI Lens to Pentax PK Mount Adapter Ring for PK K20D K200D K-M, you can use Nikon lenses on Pentax PK Mount DSLR. If you have a camera, you can make the most of your equipment and use it with a wide variety of filters hoods caches. This lens adapter ring is made of metal aluminum, and it is easy to use. With this camera mount adapter, you can experiment by taking close pictures of various small items such as stamps, coins and insects ect. Reference number of the camera data to optimize the plant design drawings to achieve high precision machines to better protect your camera! Made of high quality material, the mount adapter ring is durable and reliable for long time use.Small item with great use, do not miss it!
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Product Description

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  • Specifications:

    • By using this mount adapter ring, you can use Nikon lenses on Pentax PK Mount DSLR
    • It is also perfectly compatiable with all Pentax DSLRs
    • Aperture-priority works on most cameras, however a preset exposure compensation may be required on some cameras
    • This mount adapter ring is 1:1 adapter, however the magnication of the glass optic on the adapter is not exact 1:1
    • It is able to peform focus to infinite
    • Brand new, never used
    • Made of metal
    • This is an original product
    • Color: Black


    MASSA MASSA Nikon AI Lens to Pentax PK Mount Adapter Ring for PK K20D K200D K-M

    • This camera mount adapter is convenient to use when shooting

    Mount Adapter Ring

    • The lens adapter ring is perfectly compatiable with all Pentax DSLRs

    Lens Adapter Ring

    Camera Mount Adapte

    • Well-made mount adapter ring with durable threads that will allow habitual use without damage 

    What is Adapter Rings?

    • Adapter Rings allow the adaption of "Series Sized Filters" to your lens. Adapter rings contain two components: an adapter ring and a retaining ring. A Series Sized filter is a glass filter that does not contain filter threads. The Series Filter is held in place between the Adapter ring and the Retaining Ring
    • The advantage of this method is utilizing same sized filter on a number of different sized lenses by attaching different sized lens adapters
    • Not all lenses are designed with standard filter accessory screw in thread sizes. For these lenses, many of which are very popular, the way to mount a filter is via an adapter ring. A main feature of adapter rings is that you can utilize one size filter with a number of different sized lenses via different adapter rings
    • An Adapter ring consists of two parts: an adapter ring and a retaining ring. The non-threaded filter is held in place between the two as you screw the retaining ring into the adapter ring. The adapter ring is than screwed directly into the lens or is mounted to the outside diameter of the lens barrel via a setscrew lock ring adapter
    • To stack non-threaded filters, a second retaining ring is required to be threaded into the first retaining ring and the second filter is than held in place between the two
    • Adapter rings contain two measuring specifications: 1) the direct screw in size to the lens such as 86mm, 95Cmm, etc / or outside lens diameter to mount a setscrew lock ring and 2) the size of the filter that the adapter wil1 accommodate
    • Example: 105Cmm-4-1/2'' screws directly into a lens requiring a 105Cmm accessory size and accepts 4-1/2"round size non-threaded filters
    • Example: 124SSLR-138mm features an adapter that set screws over a lens barrel (SSLR) with an outside diameter of 124mm and accepts 138mm round non-threaded filters
    • Larger or smaller filters than the designated filter size may also be utilized on lenses via a Step Up or
    • Step Down ring. To determine which type ring you need, start with the lens accessory size of your lens and convert it to the desired filter size needed to be used
    • Example: A lens featuring a 62mm accessory size with the need to mount a 77mm filter would require a 62mm-77mm Step Up ring
    • Example: A lens requiring a 58mm accessory size with the need to mount a 52mm filter would require a 58mm-52mm Step Down ring. It is not suggested to utilize a Step Down ring more than a two-size difference between the lens and filter otherwise lens vignetting may result

    How to Use Camera Lens Adapter Rings:

    • Purchase a close up lense if you are photographing things like plants, insects, jewelry and maybe even food items. Close up lenses, which screw into the front of the camera lens, contain multiple elements of optical glass and are used to change the focus range of the lens. They come in different magnifications and are sometimes sold in sets. A 1X adapter will halve the focus range of your lens. If your lens could focus at 3 feet, you can now focus at 1.5 feet. With a 2X adapter you could focus .75 feet. They dramatically reduce the depth of field, as is true with all macro photography. They are also usually the least expensive accessory lenses to purchase
    • Telephoto Adapter: Buy telephoto adapters if you need to extend the telephoto range of the lens. These also contain multiple optical glass elements and are attached to the rear of the lens and then directly onto the camera. They are more expensive than close lenses and are very camera specific since they need to couple with the camera's autofocus and exposure mechanisms. You need to also be conscious of the weight it will add to the lens. A 2X adapter will turn a 200mm lens into a 400mm lens. It can also be used with zoom telephoto lenses. These adapters are great for sports and wildlife photography and are also used in street photography
    • Bellows: Purchase an adapter that will alter the perspective of your camera in the same way a view camera does if you are doing architectural and scenic photography or any assignment where the perspective is critical. You can purchase an adapter like the one pictured at the top of this article from LensBaby (see Resources below). These adapters screw into the front of the lens and allow you to tilt the front element to alter the perspective and eliminate converging lines. Another way is to purchase a bellows like the one pictured here. This option actually provides more control since you have a bellows extension and front element tilt both available. You can always adjust perspective in post production, but you will lose some of the image in the editing process
    • Fisheye Adapter: Buy special effects lens adapters like the fisheye adapter (pictured here) if you need to turn your wide-angle lens into a fisheye lens. You can also find polarizing filters to minimize reflections from water and glass. Both of these adapters are useful in general photography and provide a function that cannot be achieved in post production. There are also multiple image adapters, clear spot adapters, soft focus adapters and many more. These are much less useful in the digital age since all of the special effects can be easily created in post production

    Package Included:

    • 1 x MASSA Nikon AI Lens to Pentax PK Mount Adapter Ring for PK K20D K200D K-M
    • 1 x Front Lens Cap
    • 1 x Rear Lens Cap

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Average Customer Review:
  ( 8 Reviews)
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Richard Hung

Bought this item on


Not bad
00:00:00 06-20-2011
After reading other reviews about the difficulty of removing this thing, I was careful not to tighten it too much for fear of having the same experience. I have a set of extension tubes which I used it's mount for, and it worked decently. Does what it's supposed to. Only downside is having to be careful that the lens doesn't fall off your camera (due to not over tightening, due to fear of permanently attaching the unit to your camera). <br/> <br/>For the price, not bad. Cheaper alternative to Nikon's $50 name brand.
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Andrew Miller

Bought this item on


It Works
00:00:00 06-07-2011
Bought this reading the reviews and wanted to jot down my initial experiences <br/>a) It works! as long as you are careful and know what to do <br/>First time i installed it - camera said - No lens found - turns out it was not in Manual mode <br/>I struggled to remove the filter from the lens - till i read that we should remove the lens from the filter first and then remove filter from camera <br/>Worked like a charm next time around and for <10$ , the macro capabilities are mind blowing
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Samuel Porterfield

Bought this item on


Works For Me
00:00:00 05-30-2011
It a simple item that does what it's suppose to do, which is allow you to take close macro photos by mounting a regular lens backwards.
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Jimmy Boucher

Bought this item on


Lens Adapter Ring
00:00:00 05-17-2011
Product is well designed and works as advertised. No problem focusing to infinity without a rear optics addition. It installs and removes from easily from both the camera body and the lens. Would definitely recommend this product if you want more life from your old MD lens.
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Mark Pain

Bought this item on


So far so good
00:00:00 05-11-2011
Good for the price paid, certainly there are other option is you want a GREAT quality product, however this one works perfectly!
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James Duran

Bought this item on


Cheap and well made. What more to ask for
00:00:00 05-01-2011
Easy to put on, just twist it onto your m42 lens and you're set. It's made of metal so you don't have to worry about damaging it by accident. Only thing missing is AF, but for the price I can't complain.
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Anderson Chamon

Bought this item on


It works
00:00:00 04-26-2011
This lens adapter works as expected. Not jewlery precision but it gets the job done for a very reasonable price. No complaints.
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Deanna Wiseman

Bought this item on


Good choice
00:00:00 04-11-2011
The adapter is perfect for rescueing the old FD lenses. Had some problems trying to figure out how the "lock" - "open" lock functions. Once having figured this small inconvenience out, ive enjoyed the old lenses, which in my opinion, give better results than other more modern EOS ones. Also, the adapter seems to be able to carry heavy lenses. Great option!
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