K&F Concept Lens Adapters KF06. 453, KF06. 441



K&F Concept was founded in 2011 and strives to offer a good balance between quality and price. The company specializes in the design, research, manufacturing, and marketing of photographic accessories. At the present time, the company is selling products in multiple countries, as an official retailer and through Amazon.

Official product link:




Packaging and accessories

The lens adapters are protected during shipping by good quality plastic cases. The top lid of the casings is held in place by solid clips that will not break even under stress. In terms of the design, this packaging has little to offer apart form a label with the model number of the adapter.



Series: Lens adapter
Model: KF06. 453, KF06. 441
Color: Black & Silver
Materials: Aluminum & Brass
Mounting system: Varies based on camera mount & lens mount


– Made of brass and aluminum.
– Precise and durable construction.
– Manually operated.
– Infinity focus allowed.
– 12 months quality guarantee


Visual inspection

The lens adapters reviewed are the KF06. 453 which allows the usage of Canon FD lenses on Micro Four Thirds (MFT or M4/3) cameras, The second adapter featured in this review is the KF06. 441, which allows the usage of M42 vintage lenses on Micro Four Thirds (MFT or M4/3) cameras.

Both adapters are part of the new Generation 3 Pro series and feature an updated mount and newer design.

The main difference with these new Pro adapters design wise is the all-black color and the bright orange line.


The KF06. 453 adapter is designed to fit on all Canon FD and Canon nFD lenses. This is done by using a rotating mount meant to emulate the original Canon FD camera mount. The rotating part includes a pin that will push on the lever inside the lens and actuate the aperture spring.


The KF06. 441 is the third generation of M42 to MFT adapters. Much like the rest of the Pro series, it has an all-black design with orange accents. Thanks to the simple design of the M42 mount, this in essence being just a thread, this adapter is simple.



The adapters have a low tolerance between the lens and the adapter body. This is ideal as any space left between the two will cause light leaks into the camera sensor. The build quality with these adapters is outstanding, with no uneven gaps left between the metal parts.


The mountings on both the M42 and Canon FD adapter is done well. The mount is secure on the lens even if you pull on the adapter. This is great to see as some vintage lenses are heavy and will apply downward pressure on the adapter and camera.


Final thoughts

The K&F Concept KF06. 453 and KF06. 441 Lens Adapters are a great piece of kit. They are reasonable priced when looking at what the professional adapters have as a price. The build quality is on the same level as more expensive adapters. The important thing with these adapters is the fit and finish they have once installed on the lens. The Canon FD adapter in particular shows a good performance as it never slips from the camera.

Using these two adapters is easy, as they follow the exact measurements and specifications offered by the camera and lens manufacturers.

The third-generation adapters are better looking and better made than the previous models. The tolerances are even tighter and that is obvious especially with the Canon FD adapter that has moving parts. If there is a shortcoming for these adapters is the lack of availability in certain parts of the world.

In conclusion, the K&F Concept KF06. 453 and KF06. 441 lens adapters are great for using your vintage lenses with your modern DSLR or Mirrorless camera. The adapters are well made and have a good design that will match any modern camera.

Related Posts

Leave a Reply

Your email address will not be published. Required fields are marked *