===== DZOFILM X-tract FF Probe Zoom 18-28mm T8 ===== 
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==== Summary ====
The DZOFilm X-Tract 18–28mm T8 is a full-frame probe zoom lens designed for macro and specialty cinematography, offering a parfocal zoom range from 18 to 28mm with a constant T8 aperture. It delivers up to 2.1:1 magnification with a minimum working distance of 6mm from the front element and a minimum focus distance of 47.3cm from the sensor. The optical design includes 7 high-refractive and 6 low-dispersion elements to minimize distortion (±2%), chromatic aberration, and focus breathing (~0.5% at 24mm), while maintaining over 70% relative illumination. Mechanically, the lens weighs approximately 1.09kg, features standard 0.8 mod gears, a ±300° focus throw, and is built with anodized aluminum. It is available in multiple configurations, including straight, 90°, and 360° probe variants. The 360° version includes a rotating periscope and prism for variable viewing angles. The lens is IP57-rated for dust and water resistance up to 28cm and functions in temperatures from –30°C to 70°C. It comes in PL mount and includes accessories such as a UV filter, support bracket, and case, with pricing around $3,499–3,799 depending on configuration.
==== Tech Specs ====
| Manufacturer    |DZOFILM|
| Series          |Probe Zoom|
| Model           |X-tract|
| Focal Length    |18-28mm|
| Max Aperture    |T8|
| Min Aperture    |T45|
| Format          |-|
| Image Circle    |43.2mm|
| Minimum Focus   |1ft 7in (from sensor plane), 6mm (from lens front)|
| Focus Rotation  |300°|
| Iris Blades     |10|
| Optical Design  |Direct:25/18, 90° Periscope:26/19, 360° Periscope:27/20|
| Squeeze         |none|
| Front Diameter  |Direct:29.6mm|
| Filter Thread   |-|
| Focus/Zoom Rod  |none|
| Native Mount    |PL|
| Data Protocol   |none|
| Length          |Direct:415mm|
| Weight          |Direct:1090g, 90° Periscope:1132g, 360° Periscope:1144g|
| Body Telescope  |none|
| Body Material   |Aluminum|
| Focus Drive     |Manual|
| Iris Drive      |Manual|
| Zoom Drive      |Manual|
==== History ====
Country of Origin: China \\
Release Date: - \\
Launch Price: - \\
Design Revisions:\\

==== Service ====
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Service Manual: (Insert link to manual here) \\
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Full CLA: **#hrs.**\\
<wrap note>Enter relevant notes here</wrap>\\
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==== Cine-Mod ====
<nodisp 8>
Focus Ring O.D.: \\
Zoom Ring O.D.: \\
Iris Ring O.D.: \\
De-click Y/N: \\
Mount Conversion: \\
Additional Notes: \\
</nodisp>
==== Notes ====
==== Media ====