- L-type zoom lens
- Circular and full-frame fisheye lens in one
- Suitable for use on Full-frame, APS-C and APS-H cameras
- One aspherical and one UD lens element
- SWC lens coating to reduce ghosting and flare
- Fluorine lens coating to repel water, dust and dirt
- Robust build with superb handling
- Close focusing distance of 0.15m
- Ring-type USM for silent, high-speed AF
The 8-15mm fisheye focal length of this zoom lens provides the widest angle of view for capturing truly epic scenes. The sky at night is an ideal candidate where the 180 degree field of view can be used to ensure you get the whole sky in.
On a full frame camera, the lens functions as both a circular fisheye, where a circular image is projected back to the sensor, and a full frame fisheye where the scene fills the entire sensor. This provides increased versatility allowing you to choose between a full 180 degree field of view horizontally, vertically and diagonally, or a nearly 180 degree field of view diagonally with a full frame image.
On APS-C sensor cameras the sensor ‘sees’ less of the image circle, so the field of view is narrower. There is a lock for use with APS-C sensor cameras that stops the lens being zoomed out to the full width. The lock stops the lens at a focal length of approximately 10mm. Because of the narrower field of view of the APS-C sensor cameras, the full width of the zoom range would produce an image that was approaching circular but instead appeared as if it was suffering from corner shading. By having the lock in place images can be captured up to the maximum width possible before the edges begin to darken.
The lens barrel markings also show check 'C' and 'H' marks for APS-C and APS-H sensor cameras to show the maximum zoom that can be used to avoid corner shading or vignetting. This allows you to achieve the best results possible with any EOS camera.
Featuring a constant f/4 maximum aperture throughout the zoom range means you can make use of all the available light. This would be especially beneficial when shooting the night sky as there is no real need for a small aperture to provide depth-of-field, but having a wide maximum aperture allows you to gather as much light as possible and keep exposure times shorter than they may otherwise be.
For the times when your subject is moving, the ring-type USM AF motor ensures silent, fast autofocus to track subjects accurately.
Being an L-series lens the EF8-15mm f/4L Fisheye USM lens features a robust and durable build quality to ensure that it stands up to the use of professional photographers. Coupled with moisture and dust resistant seals, the lens is ready for a lifetime of service.
A lens hood is provided as part of the lens cap with the EF8-15mm f/4L Fisheye USM lens. Because of the extreme angle of view the lens can ‘see’ the lens hood so it should only be used when shooting at the 15mm focal length setting. At wider focal lengths the lens hood is likely to be visible in the image frame.
A ring-type USM autofocus motor delivers fast and near-silent AF with high precision. It also provides full-time manual focus so that you can adjust the focus with the focus ring, without first having to switch the lens to manual focus. This allows you to adjust the focus accurately to ensure it is exactly where you want it to be for the most creative control possible.
SubWavelength structure Coating
Designed for use in digital photography, Canon’s patented lens element coating helps to minimise the ghosting and flare caused by internal reflection - helping to deliver crisp, clear images. The EF24mm f/1.4L II USM was the first Canon lens to feature the SubWavelength structure Coating and it is now found on several lenses in the range. This coating acts like the surface of a moth’s eye to reduce reflection from the surface of the lens - it has the advantage of reducing both flare and ghosting to improve image quality.
Fluorine lens element coatings
In the quest to keep the lens elements clean and thereby realize the best image quality possible, the front and rear lens elements have been coated with Fluorine. Fluorine is a non-stick coating that helps repel dust and water, and makes the elements easier to clean should any dirt find it’s way there from rain drops or fingerprints.