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High Precision Camera Lens Adapter for M42 Series Lens Mount to Fuji X Series Mount Camera, M42-FX IV FIT ART
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Features
- * Adapter ring for M42 series lens to Fuji X series body
- * Fully manual control, the shape is stable, not easy to slip, and safer
- * Red dot logo, precise alignment, easy installation and disassembly
- * The connection ring and the bayonet are tightly and smoothly combined, and there is no loose phenomenon
- * High-precision perfect transfer, aluminum-magnesium alloy ring body, durable, comfortable and smooth disassembly Lens macro function, and can focus at infinity
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C$41.99
Shipping
&FREE Shipping to Canada
Sale
Buy 3 Get 8% OFF
Buy 5 Get 12% OFF
Buy8 Get 15% OFF
Buy 5 Get 12% OFF
Buy8 Get 15% OFF
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Connect with endless possibilities
K&F CONCEPT delivers around 300 types of lens adapter rings, making different sizes of lenses and cameras smoothly compatible.
With a professional design and craftsmanship, our lens adapter rings allow professionals to renew old lenses. Staying connected to all your powerful tools has never been this easy.
With a professional design and craftsmanship, our lens adapter rings allow professionals to renew old lenses. Staying connected to all your powerful tools has never been this easy.

Function & Note:
This lens adapter allows you mount your M42 screw mount lens to your Fujifilm X camera.
Plz Note: 'No Lens Attached' - Warning Message Appears: The position of the infinity mark [∞] of the 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.
Plz Note: 'No Lens Attached' - Warning Message Appears: The position of the infinity mark [∞] of the 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.

High Precision
High-tolerance precision craftsmanship, with this lens adapter, your lens and camera can be closely and smoothly combined with the bayonet,
to achieve the purpose of adjustable and focusable, bring your M42 screw mount lenses back to life on Fujifilm X cameras
to achieve the purpose of adjustable and focusable, bring your M42 screw mount lenses back to life on Fujifilm X cameras

Instructions for use Attention:
Attention:
Manual adapter without autofocus or aperture ring.
Skillful installation, don't too much force.
Adapting an APS-frame lens to a full-frame camera may generate vignetting, some cameras could correct it by adjusting APSC.
Adapting a full-frame lens to an APS-frame camera provides excellent edge-to-edge sharpness. The smaller image field helps minimize the effects of lens distortion and aberration by using the 'sweet spot' or center of the larger lens image circle.
And it will magnify the focal length by 1.6 on Canon, 1.5 on Nikon and Sony, 2.0 on M4/3 camera
Infinity focus position:
The position of the infinity mark [∞] of the 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.
Manual adapter without autofocus or aperture ring.
Skillful installation, don't too much force.
Adapting an APS-frame lens to a full-frame camera may generate vignetting, some cameras could correct it by adjusting APSC.
Adapting a full-frame lens to an APS-frame camera provides excellent edge-to-edge sharpness. The smaller image field helps minimize the effects of lens distortion and aberration by using the 'sweet spot' or center of the larger lens image circle.
And it will magnify the focal length by 1.6 on Canon, 1.5 on Nikon and Sony, 2.0 on M4/3 camera
Infinity focus position:
The position of the infinity mark [∞] of the 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.

Matting varnish inside design
The internal matte-black finish reduces glare and reflections of light coming through the lens. so you will get a perfect picture at the right exposure.
Reviews (98)
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Great way to adapt manual Nikon G or F lenses to my Fuji X
Adapter is very solid and has a nice fit on both the lenses and the camera. Aperture ring has several clicks of adjustment and it rotates smoothly from full open to full close with the lens attached to the camera. Each click doesn't directly translate to the settings on your lens so you'll have to do some testing to get the hang of it. If your lens already has a manual aperture, then you should set this one to full open and use the one on the lens instead. I tested this using Nikon DX lenses and everything worked just as I hoped.
22/04/2025
M42 Adapter
Quality product. Works as it should. It fits snugly onto the camera. I use it often and have had no problems thus far.
15/04/2025
Fuji adapter for Nikon lenses
I have already tried this adapter on a couple of important occasions and I consider it a good product also for the quality/price ratio. My concern was the attachment to the reflex and the lens, instead I can confirm that they are excellent, very fluid without play. The adapter is also heavy in its kind and is sold in a simple plastic box.
Regarding the performance that you get from the lenses I consider them on par, the skill is then that of a correct manual focus.
The only ""defect"" that I can detect is that it is sold without caps, but more than anything that the cap on the Fuji bayonet side, even using an original Fuji cap, does not attach, this for me is a problem because I wanted to keep a lens ready with the adapter in my bag, I am now studying alternatives, but they could at least provide a simple rubber cap. 4 was only for the problem of the cap.
Regarding the performance that you get from the lenses I consider them on par, the skill is then that of a correct manual focus.
The only ""defect"" that I can detect is that it is sold without caps, but more than anything that the cap on the Fuji bayonet side, even using an original Fuji cap, does not attach, this for me is a problem because I wanted to keep a lens ready with the adapter in my bag, I am now studying alternatives, but they could at least provide a simple rubber cap. 4 was only for the problem of the cap.
14/04/2025
Very useful
The lens of my xt3 seems to be problematic. The adapter allows me to mount old Nikon lenses and do my tests. Impeccable
14/04/2025
No less than expected.
This adaptor does indeed its job. Solid materials, nice finish
04/04/2025
good quality
good quality
03/04/2025
Optimal
It does its job perfectly, it meets expectations.
01/04/2025
Good product for its versatility and quality
Good product for its versatility and quality
28/03/2025
Great adapter from M42 to FX mount
A great adapter, allows you to mount lenses with M42 mount on Fujifilm mirrorless cameras; I use it on an X-Pro2 and I have to say that it works very well, no play once attached. Solid and well made, I am completely satisfied with the purchase.
26/03/2025
Works as inteded.
Works as inteded.The is a slight play when mounted on the camera body (fujifilm X-t3)
20/03/2025
FAQs
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Specification
Adapter | |
---|---|
Camera | Fuji X |
Lens | M42 |
Material of the ring | Aluminum-magnesium alloy |
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