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K&F Concept

K&F Concept PK K Mount Lens to Sony NEX E-Mount Lens Adapter, Compatible with Sony NEX-3 NEX-3C NEX-3N NEX-5 NEX-5C NEX-5N NEX-5R NEX-5T NEX-6 NEX-7 NEX-F3 NEX-VG10 VG20

    • Based on 429 reviews
Condition: New
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$21.99 Why this price?

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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Nov 29
Order within 23 hours and 15 minutes
Available payment plans shown during checkout

Size: PK-NFX


Features

  • Smooth surface for effortless mount,Infinity focus allowed.
  • Anodized aluminum construction.Smooth surface for effortless mount, fine made to be light weight and strong. Or effortless mount, fine made to be light weight and strong.
  • Compatible Cameras (Including, but not limited to): Sony NEX-3 NEX-3C NEX-3N NEX-5 NEX-5C NEX-5N NEX-5R NEX5T NEX6 NEX7 NEX-F3 a6000 a5000 a3500 a3000 Alpha A7 A7R NEX-VG10 VG20 etc NOTE: This adapter will NOT fit on the Sony a7S, a7 II, a7S II, and a7R II.
  • This Lens Mount Adapter, is made with high standard precision. Its all metal design and polished surface is designed to guarantee smooth mounting and long lasting experiences. It allows Pentax K/PK Lenses to fit on a Sony Alpha NEX E-Mount system camera body.
  • Please note: Infinity focus position:the position of the infinity mark of the telephoto lens or super telephoto lens is shifted slightly to the positive side to enable focus adjustment even when focus shift is caused due to temperature changes.The shift range is denoted by an L-shaped line, Be sure to check the focus through the viewfinder even when you shoot at infinity.

Package Dimensions: 3.15 x 3.15 x 1.73 inches


Item Weight: 4.2 ounces


Item model number: KF06.075


Is Discontinued By Manufacturer: No


Date First Available: July 2, 2015


Manufacturer: Shenzhen Zhuoer Photograph


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Nov 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Great buy
Size: PK-NFX
Product was sturdy and solid without any light leaks. Would recommend.
Reviewed in the United States on November 11, 2022 by Erik
    • Great
Size: PK-NFX
Adapting Pentax prime to Sony A6000. Works well. Stays tight on both sides. No leaks. Also purchased the speed version with glass. One issue I did see was a couple screws loosened up after a bunch of use. If you are frequently mounting and dismounting or traveling a lot (vibrations) I would periodically check the screws on the face. I tightened them and have had no further issue but its a good tip to consider. ... show more
Reviewed in the United States on May 31, 2022 by Jam
    • Works prefectly with my Sony A7iii and a SMC Pentax-M 50mm F1.4 lens
Size: PK-NFX
Review Image by JI-SOO LEE JI-SOO LEE
My wife's grandfather gave us his old SMC Pentax-M 50mm F1.4 lens that we found at his house in Toronto. I put it away for a year and haven't thought about it. Eventually it was time for me to upgrade from my Canon 60D to a full frame, I decided to switch brands and go for the hip Sony mirrorless A7iii. I was so happy but became estatic when I realized there was a trend to use old manual lenses on mirrorless cameras. I did some research and found this K&F K Mount to Sony E-mount adapter. Makes me overall want to get more K-mount lenses! It works perfectly! It's all metal, feels so sturdy. The E-mount side and the K-mount side when attached to the body and lens respectively feel like a SOLID connection. There is no wobble or insecure feeling. In terms of use, it of course inherently requires you to use manual mode. There is no glass or electronics to this adapter because the lenses for K mounts did not have autofocus at the time. But using old school manual focus hand control you can get SHARP great photos. Peak focusing works great. ... show more
Reviewed in the United States on June 20, 2020 by JI-SOO LEE JI-SOO LEE
    • Solid but infinity focus issues.
Size: PK-NFX
Received this adapter earlier this week. So far I've tested with an A7ii and the following lenses: - SMC Pentax-M 50mm 1.4 - SMC Pentax-M 50mm 1.7 - SMC Pentax-A 24mm 2.8 - Tokina 24mm 2.8 Pros: Solid, snug fit. Seems well made. Cons: Infinity focus actually is before the infinity stop on the lenses I tested. The same lenses focus at infinity properly on Pentax DLSRs. Also the 24mm Pentax lens exhibits severe vignetting at close focus regardless of aperture; the image projected from the lens doesn't cover the entire sensor... UPDATE: The extreme vignetting with 24mm Pentax legacy lens (that is, a full frame/35mm film lens) was a result an unusual lens hood that the lens's owner was using. It looks like most, if not all, adapters of this type allow legacy lenses to focus beyond infinity so I am moving this from 2 stars to 4. ... show more
Reviewed in the United States on June 14, 2018 by J. Edwards
    • Very nice adapter!!
Size: PK-NFX
K&F Concept Lens Mount Adapter for Pentax PK K Mount Lens to Sony NEX E-Mount Camera Body, fits Sony NEX-3 NEX-3C NEX-3N NEX-5 NEX-5C NEX-5N NEX-5R NEX-5T NEX-6 NEX-7 NEX-F3 NEX-VG10 VG20 Absolutely perfect! The description says "This adapter will NOT fit on the Sony a7S, a7 II, a7S II, and a7R II.", wrong! I purchased this for my new Sony A7ii to use my old Pentax lenses. It is a perfect match. The fit and finish of this adapter is excellent, especially at only $15. Once I unboxed it, I could see the craftsmanship put into this adapter. It snapped perfectly into my camera, and my Pentax lenses snapped perfectly into the adapter. Of course you will be in manual mode focus, but you can still use the Sony focus peaking feature, but will not be able to use the focus magnification. All-in-all, this is a very well machined piece of aluminum. Will be purchasing another adapter for cannon lenses now. ... show more
Reviewed in the United States on August 25, 2016 by Phil8920
    • A very good adapter, sturdy and good designed.
Size: PK-NFX
This is a little expensive adapter but it works extremely well with my Sony A7 mark two camera And the Sigma want to 150 to 600 mm telephoto zoom lens Aunt also with a big list of lettuce is mine is on converter for Canon lenses to Sony NEX mount full frame camera. Be advised that you probably are going to lose 1 step on the light using this adapter instead of on the same brand compatible design lenses for your camera. ... show more
Reviewed in the United States on May 4, 2020 by Christopher May
    • Not bad
Size: PK-NFX
Good adapter, works as it should. ∞ focus on some lenses is off
Reviewed in the United States on August 12, 2020 by Amazon Customer
    • Highly recommend!
Size: PK-NFX
Using this on a Sony a6300. I have a Ricoh 35-70 f3.4 and a Pentax 50 f2. It works great with both and I could imagine with any other K mount lens. The build quality is amazing, I thought it was gonna to be plastic but it is all metal. I thought it may be a struggle to focus since I’m use to auto focus but with focus peaking it is super easy. ... show more
Reviewed in the United States on June 23, 2018 by Glenn Thomas

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