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AGW-325 Filter

Our premier top-of-the-line split lens filter features our exclusive "clear" IR filter in combination with the shaded filter of your choice.

The AGW®-325 lens was developed to answer requests for exceptional infrared radiation protection while also reducing the light level perceived by the eye. This filter updates the traditional AGW-286 filter.

It consists of a base lens of exclusive Blue Didymium™, a thin section of our exclusive lightly tinted IR filter glass, and a section of either shade 3, 4, 5, 6, or 8 Green Welding cemented to the base lens. You may have your lenses made 50/50 or one-third/two-thirds. The shades in standard configuration are "clear" on top and dark on the bottom. The reversed configuration (custom-made, not returnable) is dark on top and "clear" on the bottom. Your choice.

The available shades are:

  • 3 *Custom made, not returnable*
  • 4
  • 5
  • 6
  • 8 *Custom made, not returnable*

Suggested uses are: where there is a need for attenuation of bright illumination, such as that generated when working Pyrex®, quartz, Vicor®, platinum jewelry work, and any operation where long periods of time are spent gazing into a high-temperature furnace or fire pit.

The AGW-325 filter is available only in non-prescription, and single vision prescription forms. Because of the laminations involved, we cannot make this filter in bifocals, trifocals, or progressive forms.

Thickness Advisory: This filter is thicker than normal lenses. In non-prescription form, it is approximately 5 mm thick. Single vision prescription adds at least 1 mm. 

Shade 8 is not made in prescription form due to the extreme darkness of the filter.

Protected under the United States Patent Number 6,612,697.

Specifications (Shade 4):

Maximum Visible Light Transmission: 11.2 % 
Average (400 to 750 nm) Visible Light Transmission: 4.9 % 
Average (751 to 3000 nm) IR Transmission: 4.0 % 
ANSI Welding Shade Equivalent: 3.5 approximate

Specifications (Shade 5):

Maximum Visible Light Transmission: 5.7 % 
Average (400 to 750 nm) Visible Light Transmission: 2.1 % 
Average (751 to 3000 nm) IR Transmission: 1.5 % 
ANSI Welding Shade Equivalent: 4.5 approximate

Picture of AGW-325 - Non-Prescription
AGW-325 - Non-Prescription
AGW-325 Non-prescription lenses. These lenses are available with a 6-base curve which fit most streetwear and sunglass frames, as well as the wrap-style 8-base curve.
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Delivery date: Ships in 4-7 working days, plus time in transit
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$394.95 excl tax
Picture of AGW-325 - Single Vision Prescription
AGW-325 - Single Vision Prescription
AGW-325 Single Vision prescription lenses. In addition to the desired shade number, we need the following details to correctly manufacture single vision prescription lenses for you: Your prescription as it is written out as it is on the form you received from your optical professional like this: Right Eye Sphere x.xx Cylinder x.xx Axis xxx followed by Left Eye Sphere x.xx Cylinder x.xx Axis xxx. If your prescription requires prismatic correction, please note the amount for each eye after the entry for Axis and the direction: in, out, up, down. If your prescription is spherical only, you may see the letter DS or a line through Cylinder. Just enter the data as shown on your prescription. Replace xx with the numbers on your prescription, please be sure to include any plus (+) or minus (-) signs as indicated. The second thing we need is your Pupillary Distance. This is a measurement of the distance between your eyes and can be listed as a single number, for example: 64, or as a "split PD" such as: 32/32. Either way is acceptable. Note that PDs are required for all corrective eyewear and that we cannot process your order in our lab without it. Failure to provide a PD at the time of your order will result in your order being delayed until we receive it.
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SKU: 738x0-LNZ-RxSV
Delivery date: Ships in 8-10 working days, plus time in transit
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$544.95 excl tax
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