[Accuracy Laboratory] Iris Shutter (Pro Model) Short/Long

[July 1, 2024] The shape of the clip that attaches to glasses has been reverted to the original type. The arms of the clip that hold the glasses are now longer, allowing for greater freedom in placement. The contact surface between the arm and the glasses lens is covered with a rubber cap on the metal arm, but the other side remains plastic.

Iris Shutter (Authentic Type)

The target is far away, and the sight is close. The human eye cannot focus on both distant and near objects simultaneously. Therefore, in precision shooting, the basic method is to focus the eye on the "nearby sight," which is more important, and aim at the distant target in a blurry state.

However, there's a cheat device that allows you to focus on both far and near objects: the iris shutter. It allows you to aim through a variable aperture, and by looking through a small hole, you can increase the depth of field.

When the aperture is narrowed, both distant and near objects become clear, although the image becomes darker.

One drawback is that by blocking the eye used for aiming with a black plate, the pupil dilates, which can cause eye strain. However, this has been slightly improved by using a transparent plate for the base.

Comes with a clip for attachment to regular eyeglasses.

A "short type" with a higher mounting position than conventional products has been added to the variations.

Comparison of short type (left) and long type (right).

Starting with shipments on July 1, 2024, the clip arms have been lengthened (same as those sold early on). Compared to the short arms used in the blinder (left), there is greater freedom in positioning it on glasses. This specification change was made to accommodate the iris shutter, which often requires precise position adjustment.

Adjust the aperture size by operating the lever. This is with it opened to the maximum.

This is with it stopped down close to its minimum.

Because the base is transparent, the field of view is brighter and the pupil is less likely to dilate compared to conventional shooting iris shutters (left).

【Optional Parts】

 It can also be used in combination with a color filter (sold separately), layered in two.

It can also be attached to shooting glasses frames by using a filter holder (sold separately).

*Depending on the type of eyeglasses, the lens thickness or other features may not be compatible. Although the clip parts are made of plastic and rubber, there is a risk of damage to the eyeglasses frame or lenses depending on how it is used, so please be careful when attaching and detaching it.