Is this a fish-eye lens?
133730
According to Wikipedia: A fisheye lens is an ultra wide-angle lens that produces strong visual distortion intended to create a wide panoramic or hemispherical image.'By that definition, this is not a Fish Eye Lens. Although you do get some distortion at the widest angle, it's nothing like I would expect from a lens designed for 'strong visual distortion'.
133731
Technically it is not but for all practical purposes it is. Though with a true fisheye lens you have more defined rounding along the edges.
133732
No it is not. Yet it is the ultra widest lens on the market as faras I know. Excellent piece of glass for the price.
133733
No...this is not a fish-eye lens. This is an ultra wide angle lens. Great for wide landscapes. If you are to close to certain objects, it can give somewhat of a distorted perspective. I have used this lens at outdoor parties, landscapes, night sky photos and sunsets, and architectural photography and love this lens.
1422785
That took me a while too. I found that the ring on the lens (red ring around it) end moved back and forth, not a twist off. That's how I switched to fish eye. I can't remember if I used an adapotor ring to fit just the fisheye or not, but once I did the focus became manual instead of automatic. I hope I answered your question. I'll play with it and try to update you if I can get more specific.
1588007
I agree. This lense is great! I also got the fisheye and wide angle lense. The pics are awesome and really good quality.
696288
A fisheye lens will never give a "360" view, but it does work just like any fisheye lens by giving you a nice 180 view.
1463401
If you have the right software you can remove some of the curvature but fisheye lenses are going to have curvature.
222559
No it is just supposed to allow you to have a wider field of view. It looks fish eye-like. In my opinion it makes the images look blurry and actually reduces the quality.
179367
It really is just one lens that has two functions. For the price of the lens it is quite an addition to your arsenal for special effects, particularly in its full fish-eye effect when it it mounted on an already short lens such as an 18-23mm lens.
443750
The 0.35X should be considered a fisheye lens. The 0.43, although a wide angle, is not quite as wide.
1805272
Don't really know the answer to that. I know my son-in-law had one of those little lenses and had a problem with it, but don't know if that is the same one. Sorry.
813923
This particular lens is not threaded to receive filters and other lens. In fact this lens has to be attached to another lens by the threads on the back end of the fisheye lens or an adapter that would connect to your camera. If you could connect a macro lens at the back of the fisheye and then connect directly to the camera it might possibly work if you can get the coupled lens to focus, I feel this might be the thing that would prevent it from working. Keep in mind that the fisheye cannot be connected to a camera in the normal manner and only has threads on the rear of the lens which requires connecting to another lens or adapter that has the connection as your camera.
1017762
Yes, that is the way it works and the farther way from the center the upper and lower horizontal lines are bent toward the center of the lens. The verticals bend inward like all fisheyes. Mike
1683638
No. The flat lens avoids increasing the fisheye effect under water because one "easier" way to build such a depth case would be with a curved door that would exacerbate the fisheye effect. The flat door avoids increasing the already-present fisheye, but it doesn't fix what's inherently there. You'll need to do that in software (there are packages out there that do that).
1534407
Yes the Pentax 10-17 fish eye is an autofocus lens, if by rectangular you mean that it leaves no circlen inside a black background on the picture, then yes it's one, you can find an example of the picture here (no crop)http://www.flickr.com/photos/lere/5876189228/
2075034
No fish eye here. Just YouTube some footage to get a better picture of the viewing angles.
683936
Did you ever get an answer to this? I'm similarly confused. What's the fish-looking thing?
1346798
Yes, the one that comes with the fisheye and one additional more if you want to increase the fisheye effect
873017
This lens has auto and manual. Hands down the best fish eye I have ever used