Forum: Photography


Subject: Odd Question

scoleman123 opened this issue on Aug 05, 2008 · 5 posts


scoleman123 posted Tue, 05 August 2008 at 4:55 PM

So there are tele-extenders, that increase the focal length of a lens. But is there a way to widen the image via an apparatus of the same nature?

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inshaala posted Tue, 05 August 2008 at 6:19 PM

If  "widen" = decrease the focal length then i think there are... only really seen them for camcorders tho. You are looking for something which says 0.45x or something below 1x as far as i am aware.  Cant help other than that as i havent really looked into it.

Gut reaction would be that the quality wouldnt be that great... but then all these extenders etc are compromises for buying the real deal.

"In every colour, there's the light.
In every stone sleeps a crystal.
Remember the Shaman, when he used to say:
Man is the dream of the Dolphin"

Rich Meadows Photography


scoleman123 posted Tue, 05 August 2008 at 9:21 PM

 I was thinking of taking my fish-eye lens (Canon 15mm) and trying to go even wider. 

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inshaala posted Wed, 06 August 2008 at 9:01 AM

urm... doubt it...  what is the angle of view of the 15mm?  because you cant really go beyond 180 degrees without a specialist lens (or the nikon 8mm fish with a shaved collar can go to 185 degrees i am told).

However - you might get an interesting effect if you tried it.

"In every colour, there's the light.
In every stone sleeps a crystal.
Remember the Shaman, when he used to say:
Man is the dream of the Dolphin"

Rich Meadows Photography


scoleman123 posted Wed, 06 August 2008 at 9:55 AM

 Yeah, it already hits the 180 degree mark. 

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