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FotodioX Pro Lens Mount Adapter for M42 Lens to Nikon F Mount Camera

BH #FOPNFAM42I • MFR #M42-NIKF-PRO
28 reviews
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FotodioX Pro Lens Mount Adapter for M42 Lens to Nikon F Mount Camera
Key Features
  • M42 to F Mount DSLR
  • 1.4x Multi-Coated Focus Correction Lens
  • Maintains Infinity Focus
  • Brass with Stainless Steel Finish
This Pro Lens Adapter from Fotodiox enables the use of your M42 lenses on Nikon F mount SLR and DSLR cameras. It features a durable brass construction with stainless steel finish and its design also maintains infinity focus through the use of a 1.4x multi-coated focus correction lens.
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FotodioX M42-NIKF-PRO Overview

This Pro Lens Adapter from Fotodiox enables the use of your M42 lenses on Nikon F mount SLR and DSLR cameras. It features a durable brass construction with stainless steel finish and its design also maintains infinity focus through the use of a 1.4x multi-coated focus correction lens.

This manual adapter does not maintain automatic lens control between the camera and lens; aperture priority or manual shooting modes should be used, as well as stop-down metering for exposure control.
UPC: 812759014791

FotodioX M42-NIKF-PRO Specs

Item Type
1x Magnifying Lens Mount Adapter
Camera Compatibility
Nikon F Mount
Lens Compatibility
M42 Mount
Magnification
1.4x (with Removable Lens)
Electronic Communication
Yes
Included Shims
Materials
Brass
Packaging Info
Package Weight
0.13 lb
Box Dimensions (LxWxH)
3.35 x 3.05 x 1.3"

FotodioX M42-NIKF-PRO Reviews

Helios Mount

By Barbara
Rated 5 out of 5
Date: 2026-04-10

I purchased a Helios 44M-4 lens but needed a mount to fit my Nikon D850 camera. Utube Helios owners all use this brand of adapter and it is a perfect fit for my camera!

Used product sold as new

By Aleh
Rated 1 out of 5
Date: 2020-06-19

Scratches on front barrel, huge mark right in the center of the internal lens element, damaged coating, not usable.

See any errors on this page?

Is the 1.4x corrective lens in this adapter ...

Is the 1.4x corrective lens in this adapter removable? Sometimes I like to test a lens on my Nikon D750 without focusing at infinity. I want to try the M42 lens without an additional piece of glass in the mix. I could buy an additional Fotodiox adapter minus the corrective lens, but why buy two when one with a removable lens can do double duty? Some Fotodiox Pro adapters allow the corrective lens to be removed. Thanks
Asked by: THOMAS
The diopter glass in the FotodioX Pro Lens Mount Adapter for M42 Lens to Nikon F Mount Camera is not designed to be removable by the user.
Answered by: Boyd H
Date published: 2026-04-10

Approximately How much mm will be 58mm lens with ...

Approximately How much mm will be 58mm lens with this adapter?
Asked by: Giorgi
The FotodioX Pro Lens Mount Adapter for M42 Lens to Nikon F Mount Camera has a 1.4x multi-coated focus correction lens. As such, you would have to multiply the focal length of the M42 lens you use with the above adapter by 1.4x to find your full-frame equivalent focal length. As such, a 58mm lens would have the equivalent focal length of a 81.2mm lens as 58mm x 1.4 = 81.2mm.
Answered by: Manzell L
Date published: 2021-11-16

Because m42 has a shorter flange distance than ...

Because m42 has a shorter flange distance than f-mount, will this end up affecting focus and/or focal length?
Asked by: Michael
IT has a 1.4x multiplier so all lenses will be 1.4x longer. The multiplier is required to achieve infinity focus.
Answered by: Dan W
Date published: 2020-11-12

Will this adapter LOCK on to the camera? I bought ...

Will this adapter LOCK on to the camera? I bought a cheaper one, and it does NOT lock!
Asked by: Nina
Yes it does lock
Answered by: vilson
Date published: 2022-09-25

Is this the correct adapter needed for a vintage ...

Is this the correct adapter needed for a vintage Helios 44m lens, M42? (I am using a Nikon d600).
Asked by: Nina
Yes, M42 is correct.
Answered by: Rob
Date published: 2022-09-25

Is this the correct adapter for Carl Zeiss Jena ...

Is this the correct adapter for Carl Zeiss Jena Biotar 58mm F2 to Nikon D800 ? Will it allow infinity focus?
Asked by: Trihuy
Yes, the FotodioX Pro Lens Mount Adapter for M42 Lens to Nikon F Mount Camera can be used to mount the Carl zeiss Jena Biotar 58mm f2 lens to the Nikon D800 Digital SLR Camera.
Answered by: Paige K
Date published: 2024-05-08

Hello. If the adapter has a lens 1.4x, does it ...

Hello. If the adapter has a lens 1.4x, does it mean that a Helios 58mm in a Nikon D5600 will become in a 113mm (58 X 1.4 X 1.4) (correction factor of the camera and correction factor of the adapter)?
Asked by: Jose Luis
If you are looking for the 35mm equivalent focal length of a full-frame lens with a native 58mm focal length used on a Nikon APS-C sensor with the FotodioX Pro Lens Mount Adapter for M42 Lens to Nikon F Mount Camera, the new equivalent 35mm focal length would be 121.8mm. Your math was close, but in your (58 x 1.4 x 1.4) equation, you mis-typed the camera's crop factor, which is 1.5x. As such, 58mm x 1.4 would be 81.2mm, which is the equivalent focal length when using the Fotodiox adapter on a camera with a full-frame sensor, and you would then multiply 81.2mm x 1.5, which equals 121.8mm, which would be the 35mm equivalent focal length when used on the 1.5x APS crop sensor found in the Nikon D5600 DLSR camera.
Answered by: Manzell L
Date published: 2021-04-26

Will this work with Pentax Super Multi Coated ...

Will this work with Pentax Super Multi Coated Takumar lenses? Pentax lenses seem to use a different M42 thread...
Asked by: RT
The Pentax older lenses are M42, maybe the threading is fine but M42 all the same and this adapter should work.
Answered by: Rob
Date published: 2020-06-27
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