Cheap Fisheye Lens

Cheap Fisheye Lens
How to make a cheap fisheye lens for a compact digital camera.

You will need:
(1) Your digital camera - I used a Canon Ixus 65
(2) An old or broken SLR zoom lens - I picked up a Sigma 28-200mm from the broken lenses box of a camera shop for 5 quid, I think the autofocus didn't work.
(3) some really tiny screwdrivers, these SLR lenses are held together with tiny screws
(4) Luck - plenty of it
(5) Black electrical tape, various tubes, superglue, elastic bands, anything else you can think of to make a mount for the lens.
 
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Step 1Take the lens apart

Take the lens apart
Take the SLR lens apart using all the tools you can muster, you will probably need some very tiny screwdrivers.

You are after the lens element that sits just behind the front lens element. Keep all the other bits for other projects.
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20 comments
Sep 12, 2011. 3:54 PMiamahuman says:
Great Project! Would this lens work? http://astore.amazon.com/pennymon-20/detail/B005A0F5J6
Sep 14, 2011. 4:36 PMiamahuman says:
never mind. I purchased an old lens on Ebay that is more similar to yours.
Jun 30, 2010. 4:39 PMsid duboid says:
can u retract the orignal lens piece when the fish eye is on?
Jul 24, 2010. 2:11 AMbertus52x11 says:
By retracting, do you mean when switching the camera off? The answer is yes...
May 31, 2010. 11:32 PMbertus52x11 says:
Thanks for the great I'ble. Here is my fisheye:
 


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Jul 10, 2010. 12:26 PMeulaliaaaa! says:
Nice! I like the matching colors!
Mar 24, 2010. 12:08 AMbertus52x11 says:
Patholio, I have disassembled a 28-80 lens and the fish eye effect is less spectacular than in your case even though the focal length at the lower end is the same (28mm). Is this  because the set up of the lenses is different in both cases?
Mar 23, 2010. 2:46 AMbertus52x11 says:
Very nice! I will definitely make one of my own!
I like the fact that you use an old lens instead and the fact that it is secured to the body of the camera.

Dec 31, 2009. 11:10 PMsjoobbani says:
I have trouble with 2 things:
focus

Lighting.

Focus: i tried on landscape, i tried autofocus, and I tried macro. what to do? still blurry, i understand the edge's could be blurry, but the whole thing?

Lighting: everything seems a darker, and flash ruins things even more. tried different exposures, brightness... only thing to do, is use the Nightvision mode on the camera, from my 'ible : and that makes everything green, so...
please help.
Oct 9, 2009. 7:01 AMlieuwe says:
 the only problem might be that if you zoom in/out the cap might fall off or you might wreck your camera zoom-mechanism....
Dec 31, 2009. 10:59 PMsjoobbani says:
I have mine set up so that It is slidable, and then I can move the support platform on a hinge, so it folds, also compact, so I turn the camera on, mount the lens, and flip the hinge, in a matter of seconds.
Oct 14, 2009. 1:39 PMdigjam says:
Any suggestions for the leftover glass? 
Oct 16, 2009. 12:48 PMzenilorac says:
good work sir!
Oct 13, 2009. 4:14 PMWhiternoise says:
Which camera shop was this that sells broken lenses for a fiver?
Oct 6, 2009. 3:05 PMudijw says:
A great mod, Pat. thanks for sharing the complete instructions
Oct 6, 2009. 7:37 PMimpulse94 says:
Now I know what to do with all those old "useless" lenses!

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Author:patholio