Features of Rayqual Mount Adapters

1. Reliable and Made in Japan
2. Particular design (determination of the flange back)
3. High-precision metal processing technology
4. Stable assembly, adjustment, and inspection
5. Features of mount adapters
・Thickness of the adapter (flange back)
・Parallelism of the adapter
・Measures for internal reflection
・Feel of attachment of body and lens
・Robustness

 


1. Reliable and Made in Japan

The entire process of design, metal processing, surface treatment (plating and alumite treatment), assembly, adjustment, and inspection are carried out in Japan for consistent quality control.
We will respond politely to inquiries and requests for repair and adjustment.
(A Japanese instruction manual is included with our adapter.)



2. Particular design (determination of the flange back)

Our adapters are designed by acquiring dimensional data from many lenses and camera bodies.
In particular, the thickness of the adapter (flange back) has been tested in combination with many lenses and digital cameras in the prototype stage to determine the appropriate value.



3. High-precision metal processing technology

With our metal processing technology cultivated over many years, we perform processing that reduces product variations to the minimum.
In each process, a large number of special tools and dimensional check devices are used.



4. Stable assembly, adjustment, and inspection

Well-established assembly and adjustments are carried out by skilled technicians, and a final inspection is conducted on all our products.



5. Features of mount adapters

・Thickness of the adapter (flange back)

As the thickness of Rayqual adapter is finished with high precision, the ∞ mark on the lens and the infinity of live action match to a high degree of accuracy.
In addition, the higher the accuracy of the adapter thickness, the better the match of the lens distance scale of the lens and the distance to the actual focus position. This enables shooting using the distance scale
It is also very advantageous when it is difficult to adjust the focus with the viewfinder or monitor, such as when shooting night scenes.


When including old lenses, the infinity of the lens may not be at the original position, so there is an idea to manufacture a thinner adapter.
However, a few lens individuals are misaligned at infinity and even rarer are those that are fatally misaligned.
We do not sacrifice adapter accuracy for lenses in poor condition.


・Parallelism of the adapter

When using an adapter, the optical axes of the lens and the sensor surface (film surface) are misaligned if the mount surfaces of the adapter are not parallel.
If the optical axes are not aligned, a one-sided out-of-focus photo may result.
In order to maintain parallelism, Rayqual adapters are checked for parallelism from the manufacturing process to the assembly process, and parallelism is also checked in the final inspection.



・Measures for internal reflection

Ideally, the inner walls of a camera mirror box (dark box) have as little internal reflection as possible.
Matte black is better than gloss black, and a camera and adapter with careful light shielding processing improve the image quality and bring out the original lens performance.
It is better to use as few parts as possible that shine when the lens rear end is viewed from the sensor surface (film surface) or when the sensor surface (film surface) is viewed from the lens rear end.
For Rayqual adapters, the combinations of lenses and camera bodies are considered, and measures are implemented that include the installation of a light shielding plate, light shielding processing, and high-quality plating inside the adapters.
The light shielding plate covers the electronic contacts on the camera body side and has the effect of bringing out the original lens performance.



・Feel of attachment of body and lens

When attaching a lens or camera body to an adapter, it is ideal for it to be attached and detached with a feel close to that of the combination of genuine products.
If the feel is too soft, there is a possibility of looseness at the mount part and for the flange back to be incorrect, causing a one-sided out-of-focus photo, or the lens or camera body is disengaged.
If the feel is too hard, there is a possibility that the mount cannot be removed from the lens or camera body.
Rayqual adapters are manufactured to be as close as possible to the feel of attachment of genuine products.
If looseness occurs after long-term use, we will also accept readjustment of our adapters.
(Readjustments may incur a fee depending on the condition.)



・Robustness

For long-term use with peace of mind, the material, shape, and wall thickness of each part of the adapter are designed with margins.
High-quality surface treatment (plating, alumite treatment, etc.) is applied to each part to improve durability.
In addition, the number of screws used to assemble each part is increased sufficiently and the dimensions are increased appropriately to improve robustness and rigidity.



 

Rayqual adapters are particular and all Japanese.
Please try our high-quality, high-precision adapter.

 

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