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Fotodiox Lens Mount Adapter - Pentax K AF Mount (PKAF) DSLR Lens to Sony Alpha E-Mount Mirrorless Camera Body with Built-in Aperture Control Dial
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|Max Focal Length||0.01|
|Focus Type||Manual Focus|
About this item
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- Premium Grade Fotodiox Lens Mount Adapter with Built-in Aperture Controller
- Smooth surface for effortless mount
- Infinity Focus Allowed
- Anodized Aluminum Construction
- 24 Month Manufacture Warranty
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From the manufacturer
Bring New Life to Vintage Glass
Whether you're shooting digitally or on film, Fotodiox offers a large selection of lens adapters. Mix camera/lens platforms or reinvigorate vintage glass; Fotodiox has hundreds of ways to mount lenses onto your DSLR or mirorless camera. Our adapters deliver infinity focus, manual aperture control, and a sturdy build for lasting quality. Quick and inexpensive way to adapt lenses to your camera
All Metal Build
Fotodiox adapters are constructed from anodized aluminum for a sturdy and durable product.
Quick and inexpensive way to adapt lenses to your camera
With over 900 adapters in our catalog we're bound to have the right fit for you.
Compare with similar items
Mirrorless cameras aren't only revolutionary because of their compact size; they're even more versatile for mounting lenses than their full-sized counterparts! Fotodiox offers strong support for mirrorless camera platforms with hundreds of options for mounting both modern and vintage lenses. Our adapters deliver infinity focus, manual aperture control, and a sturdy build for lasting quality. Compatible Sony E-mount Cameras (including but not limited to): a7/7R/7S, a7/7R/7S II, a7/7R/7S III, a7R IV, a9, a5000, a5100, a6000, a6100, a6300, a6400, a6500, a6600, NEX-3, NEX-5/5N/5R/5T, NEX-6, NEX-7, NEX-C3, NEX-F3, QX1. Please Note: This is a manual adapter, so lens functions that rely on electronic communication with the camera body (autofocus, AE metering, image stabilization, etc. ) will be disrupted. Set your camera to “Manual’ or ‘Aperture Priority’ for metering. If camera does not release be sure to enable ‘shoot without lens’ in camera settings. We state “infinity focus allowed” because our adapters are designed to be universal which can prevent some lenses from focusing to infinity at the infinity mark.
Top reviews from the United States
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1) All of my Zuiko lenses are sitting too far from the sensor - Infinity focus happens when their distance scales are at about 7 meters. This is not really an issue when manual focusing, but I can't rely on a lens barrel's Infinity stop. It's a good thing the Sony a6000 has Focus Peaking and Ficus Magnification - they are absolutely necessary for manual focusing at Infinity using these adapters.
2) All of my Zuiko lenses can be focused more closely than on an OM body. This somewhat compensates the Infinity-focus problem. :-)
3) All of my vintage zoom lenses lack the resolution that can be captured by the Sony a6000 24MP sensor. They are just soft, even in the center at f/8, even though they were mire than acceptable with film.
4) Only five of my Zuiko primes are up to the task: 50mm f/1.8, 50mm f/3.5 Macro, 55mm f/1.2, 200mm f/4 and 300mm f/4.5. The rest are too soft, wide open, but ridiculously better at f8. The 50mm f/3.5 Macro and the 200mm f/4 are spectacular with the Sony a6000 (at 77mm and 308mm equivalents).
5) The OM to E-mount adapter exacts about a 1/2-stop loss of speed from the vintage lenses, much as would any extension tube. It's not a problem, thanks to good high-ISO performance.
6) Many lenses made for digital sensors are designed to deliver the light as perpendicularly as possible - to avoid the CA (chromatic aberration) "purple fringing" seen with lenses that were designed for film. I'm getting a lot of CA in the corners of the frame, but it's easily fixed in Photoshop. Note: There's no CA by shooting at f/8 instead of wide open.
I bought this Fotodiox Pro adapter after first buying and testing the K&F Concepts adapter and the Fotodiox (not Pro) adapter - for comparison and find them to be essentially identical in quality and function, so far, except the blades that engage the adapter to the camera body are about twice as thick with the K&F Concepts adapter and this Fotodiox Pro adapter, where the blades for the Fotodiox (not Pro) adapter are quite thin - which leads me to believe the K&F Concepts adapter (or this Fotodiox Pro adapter) would be the better choice when mounting a heavy lens (or perhaps any lens). Otherwise, the most significant difference is their weights. The aluminum and brass K&F Concepts adapter weighs 3.5 oz. The aluminum Fotodiox adapter weighs 3.2 oz. and this Fotodiox Pro weighs 3.1 oz. See photos...
All three adapters have a length of 33mm, from the body mount to the lens mount, and again, they all focus well short of Infinity.
Again, the blades that engage the adapter to the Sony camera body are the same thickness for this Fotodiox Pro and the K&F Concepts, but are much thinner (for some reason) with the Fotodiox (not Pro) adapter. Oddly, they all feel the same when attaching lenses or when attaching to the camera body.
If I had to do it all over again and money were no object, I would get this Fotodiox Pro, due to its being the lightest of the three at 3.1 oz. vs. 3.2 and 3.5 oz and having thick blades, rather than skinny blades. But the K&F Concepts comes out on top for the price conscious, with thick blades similar to this Fotodiox Pro, but weighing 3.5 oz. instead of 3.1 oz. I would avoid the Fotodiox (not Pro) adapter due to its thin blades, where attached to the camera body - they do not inspire confidence. Again, the blades are thicker with this Fotodiox Pro and the K&F Concepts adapter.
Now I can keep using my old Minolta glass, add a couple of additional "vintage" lenses, and get a really high quality emount if I want. The shot accompanying this review is with my a7iii, the fotodiox adapter and a 21 year old Minolta AF 35-70 kit lens.
I purchased this adapter so that I could use my Nikkor AI-S prime lenses from an old Nikon film camera. So far, it is working great, and photos taken with the Nikkor lenses look fantastic.
It comes with no instructions, so here's how to use it, after attaching your Nikkor lens:
1) Set your NEX camera to "A" or aperture priority.
2) If your Nikkor lens has an aperture ring (older manual focus Nikkors), rotate the adapter's blue ring to the far right / smallest aperture setting. Now rotate the Nikkor lens aperture ring to the desired f-stop. The NEX will select the shutter speed needed to get the correct exposure.
3) If you're using a newer autofocus Nikkor "G" lens from a current Nikon DX digital camera, just rotate the blue ring to the desired f-stop - wide-open to the left, stopped-down to the right. The NEX will pick the shutter speed.
4) If you prefer, you can also set your NEX to "M" or Manual exposure, where you choose both the shutter speed and f-stop.
5) Remember, your autofocus lens will not autofocus with this adapter, so move the button on the side of your Nikkor lens from "A" (autofocus) to "M" (manual) and focus the old-fashioned way by manually turning the focus ring on the front of your lens. If you turn on "Peaking Focus" in your NEX setup menu, it will tell you when an object is in focus by forming a colored "halo" around the object. You can choose a yellow, red or white halo from the NEX menu.
None of these lens adapters have any glass or optics. There are other brands that sell for hundreds of dollars, but I can't think of how they could possibly perform any better than this inexpensive adapter.
Top reviews from other countries
I own a few Zeiss lenses, and I know of there LEGENDARY build quality, and optics but paired with this adapter I have already put the lens up for sale. The adapter is hard to get on,the focusing ring is stiff and wonky, the lens feels like its crooked and going to fall off, and to make matters worse, it now seems to be stuck onto the adapter and can't come off. I don't know what to do as I want to sell the lens, return the adapter, but don't want to break anything. All I can honestly say is STAY AWAY from this product. There are way better adapters that cost more money, and are probably worth the extra money, but as for this, this has been a DISASTER purchase. I just hope i can get this removed and sell and return both products.
Again i repeat. DO NOT BUY THIS PRODUCT!
Incidentally, using these lenses has been really interesting. Obviously there is no electrical connection between camera and lens, so that aperture and focus need to be set manually. Focus peaking helps with the latter and it's hardly a chore anyway. Viewed on 13.5" retina computer screen my impression is that the legacy lenses are noticeably sharper than the 16-50 kit lens that came with the camera. Whether they are better than Sony high-end lenses I have no idea; but I have them and they work! I have a 50mm (35mm film value) macro lens that allows sharp focus on the stamen of a crocus while throwing out of focus the petals in the foreground and background! Amazing!
I use 3 NEX 5N / 5R cameras with 13 of my old Nikkor manual and A/F lenses, some purchased way back in 1975 .... and unlike the cheaper adapters supplied from Chinese or Hong Kong outlets ... this adapter actually does allow Nikkor lenses to focus at infinity. A friend of mine has the latest NEX to Nikkor Novoflex adapter, that costs 5x as much as the Fotodiox adapter and I would be a liar if I said that Novoflex adapter is not better made. But the difference in weight and in workmanship is very subtle and it is definitely not worth the ridiculous price hike.
After a few thousand photos the aperture open/close ring (I use this for every photo) still works perfectly with no slop and the mounting surfaces show no wear either.
The tripod foot is very strong and can be completely removed (in two parts) if it's getting in your way.
If I you just need a tube to mount a megazoom (not a canon FD) onto your camera I would say get the cheapest you can find, but if you have big money invested in a Sony camera and a lot of FD lenses then spend the extra and get this.