The name fish-eye was coined to refer to a lens capable of imaging an entire hemisphere; providing a circular view that a fish looking upward at the surface of the water might see. It should really be called a "fish view lens" since the eye of the fish probably is not responsible for what it sees as much as the fact that its eye is immersed in water. In any case, fisheye lenses achieve extremely wide angles of view by foregoing a rectilinear image to give fisheye images their characteristic convex appearance.

Don’t confuse this .25X quality Precision Design optic with “.42X/.45X… Panoramic…Super Wide Angle… Semi Fisheye…Titanium… Crystal Optics” type lenses whose rear elements unscrew to be used as “macro” lenses. They can not even approach delivering a high quality 180 degree field of view.

The all glass high resolution optics of the Precision Design .25x Super Fish Eye is manufactured in Japan and have been engineered to do one thing and do it well; reduce the focal length of a lens by .25X to provide an amazing fish eye view.

Depending on the camera model and lens it’s mounted upon, the image can cover the entire frame edge to edge or provide a circular image fully contained within the frame. Mounted to a zoom lens, the Precision Design .25X can often offer ultra wide angle, diagonal fisheye (full frame) and circular fisheye images. Close focusing is almost to the front of the optic and there’s huge depth of field.

The .25X can be a great tool for real estate agents or for just having fun! If you plan on doing panoramic or full room shots, just stand your tripod in a corner facing the center of a room. It can capture almost EVERYTHING, floor to ceiling, wall to wall, except what is directly behind the camera. Just import the resulting image into a panoramic editor/ “stitching program” (your digital camera probably came with one), convert it to a QuickTime VR file, and have a virtual view of the room.

The Precision Design .25X is the affordable fisheye optic for useful, unusual and fun pictures you otherwise wouldn't be able to obtain.

This 0.25x Super Fisheye Lens can mount to almost any digital or film SLR lens with a
52mm, 55mm, 58mm or 62mm filter size (All 4 rings sizes included). Any other filter size lenses can be used with optional Series 7 Adapter Ring.

Key Features:

• Made in Japan
• 6 Year Warranty
• All glass lens elements
• Exceptionally large depth of field
• Reduces your lenses focal length by an amazing .25X
• Offers attention-grabbing and distinctive perspectives
• Equipped with one adapter to fit the lens of your choice
• Optimized to work with almost any lens with a minimum focal length from 18mm to 50mm
• Can offer ultra wide angle, diagonal fisheye and circular fisheye images
• Especially useful for real estate or shooting in confined spaces like an aircraft or boat
• A truly fun optic that can be used creatively or as the “magic tool” that gets the whole view in one shot

• Precision Design 0.25x Super Fisheye Lens with:
  • Series 7 Adapter Rings:
  • 52mm
  • 55mm
  • 58mm
  • 62mm
  • Precision Design Lens Pouch
  • Precision Design Front and Rear Lens Caps
  • Precision Design USA 5 Year Warranty
    

Works perfect with Any of these Canon EF Lenses:
24mm f/2.8, 28mm, 35mm f/2 , 35-80mm, 50mm, 18-55mm, 28-80mm, 28-90mm, 28-105mm

Using ANY Canon EOS AutoFocus Film or Canon Digital SLR Camera Including:
EOS 1D, EOS 1Ds Mark II, III, 10D, 20D, 30D, 40D, 50D, 5D, Digital Rebel (300D), Rebel XT (350D), & Rebel XTi (400D), Rebel XS (1000D), Rebel XSi (450D), etc.