Is the pentax fish eye 10 -17 an autofocus lens and is it a rectangular fisheye
1534404
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/
1534405
It's not a circular fish eye. The fish eye effect is mild at the 17 end. It is auto focus but like most pentax lenses it's a screw drive auto focus as opposed to having and integrated focus motor which is quieter and faster.
1534406
The lens is an autofocus, I don't understand you about "rectangular fisheye" If you are asking about the circular aberration, the lens has aberration.
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/
1703482
Kinda... Because the iPhone automatically zooms in when you turn it to record you can't really tell when it's on the fish eye lens. The macro is cool when recording and I'm not sure about the wide lens, but I'd assume it is. For sure not the fish eye though.
1762695
Yes, it is the same lens sold by Pentax. I confirmed this with the seller when I purchased this camera with 18-135mm lens.
577342
Well.... technically yes. After all, "Pentax claims that all their auto-focus cameras are backward compatible with K-mount lenses dating back as far as 1975 without need for an adapter." But there are major trade offs. The camera cannot read the set f-stop of K and M series lens. You won't be able to take advantage of the autofocus options. You may need to manually set aperture. You'll have to compensate for the smaller digital chip size as compared to 35mm film. But technically the lens is will work. You'll likely get better results from upgrading to a lens designed for use with the digital camera. The K-5 II does offer full manual control options that will let it resemble the Pentax ME. Well... except for maybe the film advance lever and rewind crank.
1735306
No it is not. Here's some images on these pages that will show what they look like on a FF camera. I got these on Google|Images searching for "rokinon 8mm fisheye full frame": http://photography-on-the.net/forum/showthread.php?p=13659655 http://www.staff.uni-mainz.de/dellani/fotos/20090828-_DSC0851.jpg http://www.dpreview.com/forums/thread/3611895
562298
No. This one contains the black border. The further you zoom out the bigger the border gets. You should search for a full framed fisheye.
1199584
Yes. This is a rectilinear lens, not a fisheye, if that's what you mean by "the distortion problem". This is the only super-wide zoom for full-frame Canon cameras, as the Canon 10-22 is an EF-S lens for cropped sensors only.
443750
The 0.35X should be considered a fisheye lens. The 0.43, although a wide angle, is not quite as wide.
2194513
Hi Louis, mine was fine and had a American Warranty. The lens however is a novelty lens, not the highest quality, thus the low price. It's great for some stuff but not crisp. I later bought a Pentax 12-24mm Ultra Wide that was about $700. Love it. But the 10-17 is a fisheye with all the benefits a fisheye gives ya.
280005
The Sigma is an extreme wide angle, but not a fish eye. Straight lines will remain straight (almost). Autofocus works better on my D90 in bright daylight, worse in dim interiors where accuracy suffers.
1351506
Yes. It looks like this lens: http://www.amazon.com/Pentax-18-55mm-3-5-5-6-Samsung-Digital/dp/B0012QE4DK/ref=pd_bbs_1?ie=UTF8&s=electronics&qid=1216003965&sr=8-1
1128953
Hi Harry I have a Pentax and yes it works with it the lens itself is a manual focus not an auto focus so you will be fine!
1471310
Yes, this lens takes a 77mm thread and the circular polarizer is compatible with autofocus.
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.
1376612
It has a 35mm equivalent of 24mm. So way less than fisheye. Check the specs for the exact angle in degrees, but fisheye is usually 180 degrees or very close and they usually range in 8-15mm equivalent range from my experience.
1397369
It's wide angle-ish... not like fisheye but I do get a tad bit of distortive curve. Check out Digital Rev's review on youtube... there's examples of the pic. I definitely notice a difference between this lens and my lumix 20 mm. It's an awesome lens!
2158307
I can't say for sure, but my understanding when I bought the lens was that Pentax got the design from Tamron, but manufactured the lens in its own facility. Since my sharpness tests (admittedly amateurish) of the lens compare about equally with much more expensive top-of-the-line Pentax zooms, I find it to be a very good deal. It also compares favorably in sharpness to an old very good 100mm prime macro lens. The label on the lens says Pentax. I am very happy with it. It is much better than an older Tamron 28-300mm lens.