===== Canon EF 8-15mm f/4 L Fisheye USM ===== 
{{ :lens:canon-ef-8-15mmf4lfisheyeusm.png?direct&400|}}
==== Summary ====
For filmmakers and photographers who want the look and feel only possible with extreme wide angle and fisheye photography, the new Canon EF 8-15mm f/4L Fisheye USM is a world-class choice. With its unique focal length range, the EF 8-15mm f/4L USM is the world's widest fisheye zoom lens. It delivers 180° diagonal angle of view images for all EOS SLR cameras with imaging formats ranging from full-frame to APS-C, and provides 180° circular fisheye images for full-frame EOS models. It features UD glass for suppression of chromatic aberration, a Subwavelength coating for reduced ghosting, a newly developed Fluorine coating that keeps soiling, smears and fingerprints to a minimum, has full-time manual focus for instant switching from AF to Manual operation, and is built to the standards of the amazing Canon L-series of lenses. This means the finest optics, the best construction and the best performance available, all in a lens designed to stimulate creativity and deliver stunning images every time. 
==== Tech Specs ====
| Manufacturer    |Canon|
| Series          |EF|
| Model           |L Fisheye USM|
| Focal Length    |8-15mm|
| Max Aperture    |f/4|
| Min Aperture    |-|
| Format          |FF|
| Image Circle    |⌀|
| Minimum Focus   |6.2in|
| Focus Rotation  |°|
| Iris Blades     |-|
| Optical Design  |14/11|
| Squeeze         |-|
| Front Diameter  |-|
| Filter Thread   |-|
| Focus/Zoom Rod  |-|
| Native Mount    |EF|
| Data Protocol   |-|
| Length          |3.7in|
| Weight          |540g|
| Body Telescope  |-|
| Body Material   |-|
| Focus Drive     |-|
| Iris Drive      |-|
| Zoom Drive      |-|
==== History ====
Country of Origin: - \\
Release Date: - \\
Launch Price: - \\
Design Revisions:\\
==== Service ====
<nodisp 8>
Service Manual: (Insert link to manual here) \\
\\
Full CLA: **#5-6**\\
<wrap note>Enter relevant notes here</wrap>\\
Re-collimate: **2-3 hrs.**\\
<wrap note>simple shimming under mount not possible. see guide for details</wrap>\\
Centering/optical alignment: **not offered**  \\
<wrap note>replace parts if needed and available</wrap>\\
Zoom travel: **5-6 hrs.**\\
<wrap note>details here</wrap>\\
Image shift: **TBD, 5-6ish**\\
<wrap note>Replacement parts needed most likely</wrap>\\
</nodisp>
==== Notes ====
==== Media ====