Nikon Rayfact MJ 90mm F4
INDUSTRIAL MICRO LENS

How to Use the Rayfact

The Nikon Rayfact MJ 90mm F4 lens is available in the same Nikon F mount as for Nikon SLR cameras. I recommend you the Nikon F mount model. You can mount Rayfact lens on your Nikon SLR camera without modification.

Infinity with F mount

Infinity is not possible with Nikon SLR cameras. Nikon SLR cameras only allow close-up photography.

Nikon F Mount Camera and Rayfact

Infinity with Z mount

You can mount the Nikon Rayfact MJ 90mm F4 lens to your Nikon Z by mount adapter FTZ or mount adapter FTZ II. However, it cannot reach infinity, so it is only used for close-up photography.

Mount Adapter FTZ

How to Get Infinity

You can easily reach infinity with Nikon Rayfact MJ 90mm F4 lens by using a thin mount adapter. I made a low-cost and easy thin F to Z mount adapter using the following materials.

M42-Z Mount Adapter

Thin mount adapter with M42 mount on the lens side and Z mount on the camera side.

M42 to Nikon Z Mount Adapter

F-M42 Mount Adapter

Thin mount adapter with F mount on the lens side and M42 mount on the camera side.

Nikon F to M42 Mount Adapter

Completion of Thin F-Z Mount Adapter

Just attach the F-M42 adapter to the M42-Z adapter to complete the thin F-Z mount adapter.

Thin F to Z Mount Adapter

Thinness Comparison with FTZ

Thinness Comparison with Nikon FTZ

Nikon FTZ and Thin FTZ

Nikon is Good for Adapter

I have added a Nikon E2 ring to the mount adapter. In this state, it reaches infinity. As Nikon has high precision, Nikon is good for adapter, too.

Mounts via Nikon E2 Ring

Got Infinity with Nikon Z Camera

Built-in Helicoid

The Nikon Rayfact MJ 90mm F4 lens has a built-in focal helicoid. Therefore, from infinity to close-up photography is possible in this state.

Shortest Focusing Helicoid

This image is at infinity.

Longest Focusing Helicoid

This image is a close-up photo.

Filter and Hood

The attachment size for this lens is 52mm P=0.75. 52mm filters are a popular size for Nikon and are easily available. It also makes good use of the Nikon 52mm filters and Nikon lens hoods you already own.

Extreme Sharpness

The extreme sharpness and resolution of the Nikon Rayfact MJ 90mm F4 lens makes it particularly well suited for capturing the subtlety and nuances of facial expressions of flowers and the emotions they convey.

Nikon Rayfact MJ 90mm F4

Rayfact MJ 90mm F4,   ASA 800   F8   1/640 sec.   +1.7

Rayfact MJ 90mm F4,   ASA 800   F8   1/1000 sec.   +1.7

Rayfact MJ 90mm F4,   ASA 800   F8   1/1250 sec.   +1.7

Rayfact MJ 90mm F4,   ASA 800   F8   1/400 sec.   +2.0

Rayfact MJ 90mm F4,   ASA 400   F8   1/1600 sec.   -0.3

Next Page Articles

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Shortcuts

Chapter 0      Top Page
Chapter 1      Nikon Rayfact
Chapter 2      Lens Data
Chapter 3      How to Use Rayfact
Chapter 4      Nikon Z Album 1
Chapter 5      Nikon Z Album 2