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🔗 Connect Classic Craftsmanship with Cutting-Edge Sony Tech
The K&F CONCEPT IV PRO M42 to Sony NEX E-Mount Adapter is a precision-engineered lens mount adapter that enables seamless manual focus use of vintage M42 lenses on a broad spectrum of Sony Alpha and NEX cameras. Featuring a durable copper and aluminum alloy construction with CNC-machined knurled design for enhanced grip, it also incorporates an anti-reflective matting varnish to reduce internal glare. This adapter is a must-have for professional photographers seeking to blend timeless lens character with modern digital performance.








| ASIN | B09WR5X67S |
| Best Sellers Rank | 47 in Lens Flash Adapters & Converters |
| Brand | K&F CONCEPT |
| Customer Reviews | 4.5 4.5 out of 5 stars (474) |
| Date First Available | 29 Mar. 2022 |
| Guaranteed software updates until | unknown |
| Item Weight | 0.16 Kilograms |
| Item model number | KF06.498 |
| Package Dimensions L x W x H | 7.9 x 7.7 x 4.7 centimetres |
| Package Weight | 0.16 Kilograms |
| Part number | KF06.498 |
| Size | M42 Pro |
P**H
Adding extra value and versatility to high quality old lenses.
As a Sony shooter since the A7 was first released, I also started collecting Minolta vintage (60's and mostly 70's) cameras and lenses such as the SRT, XG, XD and X series cameras and second gen MC and first gen MD Rokkor lenses. These are sensational, compact, sharp lenses with character. A lot of modern glass just tries to be sharp while abandoning any attempt to add character to the images... Both have their place of course, and this adapter allows me to pick and choose what kind of images and lenses I want to shoot on the A7RIII and A7RV digital bodies. It makes high quality vintage lenses a really good value purchase for those who want to slow things down and shoot some manual shots with some lovely film-like character. The quality of the images are more to do with the actual lens and skill of the photographer so no point giving an opinion on that. Positives: The adapter itself seems really well made, well finished and solid, and they have attempted to make the aesthetics match vintage lenses and the body itself really nicely. It does exactly what it's supposed to and does it well at a 'reasonable' price. Negatives: There is a little pin/knob which must be lifted/compressed to secure and release the lens... But this little knob is positioned on the grip side of the lens. A7 cameras can be cramped in that area anyway so having a sharp little knob there isn't the best. However, it would be even more inconvenient if it was on the other side due to manually adjusting lenses, so I guess it's mostly unavoidable. The orange band around the adapter which is supposed to match the Sony mount doesn't 'really' match. It's a slightly different colour and a different finish but it's a nice idea so credit for trying! The positives vastly outweigh the picky little negatives and I'm really glad I picked it up. 8/10 product.
Y**Y
Highly recommend it
K&F CONCEPT, especially the PRO series, maintains a high level of product quality, with no comparison to no-name adapters. Highly recommend.
T**R
Use those old, sharp lenses!
Fitted a micro-Nikkor 55mm 2.8 to the a6000...and what a great combination as a portable tele or portrait camera...this lens is so sharp and a bargain if you can find one. The convertor obviously means you adjust the aperture ring and shutter speed manually and use focus peaking on the camera. It seems to back-focus a bit so bear that in mind and make sure the focus colour is showing in front of your subject as well as on your subject. The Adapter is well made and will help bring some of your old glass to life on a mirrorless camera. And by the way, there are some real mirrorless bargains to be had now. Don't buy if you only have lenses with no aperture ring...not a fault, just a fact. A couple of sample tele shots included....55mm on a crop sensor, so about 70mm focal length.
E**R
Okay but doesn’t work with some lenses
Good but doesn’t work with my Nikon auto focus lenses. I just get pitch black images. I think it is because there is no manual adjustment option on the lens to change aperture so it just stays at the highest.
I**D
Accurate focus and alignment
This is a very accurately machined high quality adaptor maintaining excellent manual focus across the frame even at f/1.1 - and focusing on infinity just before the lens hits the end stop. It is also very smooth to fit, both the E and the M bayonets.
M**A
Does the job well, fits firmly but not too tight. Perfect for my Contax Zeiss 50mm F1.7
Read the reviews for the previous iteration & they were mixed. I took a punt at this knowing I could return it but I won’t be doing that. I haven’t used it with the sun near the field of view yet, so I can’t say if the matte interior reduces flare. Feels well made & at this price point I can buy one for each lens required.
D**N
Great product
Exactly as described, let's me continue to use loved lenses I already own without having to re-buy all new E mount.
A**S
Nikon-Sony adapter
Nice looking item which allows me to use vintage Nikon ai-s prime lenses on a Sony A7 cr. Works perfectly though no automatic functions are supported of course. You tend to get a different pictorial quality with these old lenses and you certainly have to slow down and make decisions about focusing and aperture in a more conscious manner. Worth having one of these.
M**X
Ottimo prodotto
Perfetto anche la messa a fuoco su infinito
A**O
Ben fatto
Innesti precisi, tutto in metallo, adattatore e lente rimangono ben saldi alla fotocamera...compatibilità perfetta...unico difetto il prezzo , decisamente alto considerando che alla fine e' un pezzo di metallo...
A**R
Ich war überrascht Objektiv sitzt super und richtig
Bei andren sieht man schon mal so ein Inbus Teil dabei und hier nicht... Warum haben das andere??? Habe ich dann auch erst gesehen man kann damit falls es bei einigen die Einstellzahlen zum bedienen unten oder nicht oben in der Mitte sitzen anpassen... Brauch man aber nur wenn das nicht ordentlich gearbeitet wurde und tja mein Objektiv sitzt alles Top OBEN MITTE wie normales Objektiv eben und ich kann das Altglas verwenden und super Fotos machen.... Ja war bisschen teurer als andere aber kommt in einer Plastik Schachtel und darin kann es super sicher immer aufbewahrt werden bis zum nächsten Einsatz... fand ich gut und gefällt mir... Ja den Inbus brauche ich nicht und da denke ich mal sieht man Qualität ist TOP gearbeitet und sitzt ohne Spiel Bombenfest auf beiden Seiten... was will man mehr???
T**S
Excellent adapter with great build quality.
K&F is known for high-quality, yet affordable accessories for budget-conscious photographers — with a good reputation behind them, I decided to try out the K&F Concept IV PRO to adapt my Leica M glass to my new Sony bodies, and I haven't been disappointed. The adapter does exactly what it promises — mounts Leica M glass to Sony E-mount bodies without fuss. And at $36, it's priced competitively against other quality adapters in this space. Build quality is solid with copper and aluminum construction, and should stand up to years of use. The machining of the adapter is clean with precise tolerances — both sides seat firmly with no play or wobble when mounted on my a1, and the adapter has a lens lock/pin that seats in the detent on the lens to prevent the lens from coming loose. The knurled grip makes a tangible difference when installing or removing (especially when considering that the lens and adapter mount quite firmly), making it much easier to get a good grip compared to some other adapters. The matte paint/anodizing inside the adapter barrel helps minimize any internal reflections and light leaks. Style-wise, I love that the camera side features orange anodizing that matches Sony's camera mount nicely, which is a nice aesthetic touch that shows K&F pays attention to the details. Manual focus-only operation is expected with this type of adapter, and focus peaking on Sony bodies makes it very usable. Obviously you lose EXIF data and any electronic communication, but that's standard for manual adapters (and M-mount, in general), anyway. Overall, it is a well-built adapter that does the job at a fair price — I'm really looking forward to getting more adapters from K&F for different mounts from my other camera systems.
M**A
consiglio
costa poco ed è ottimo per le lenti vintage
Trustpilot
1 month ago
1 month ago