I must admit this passed me by, however it does seem a handy (if time consuming) way to come up with a new ultra-fast lens without buying one, hence I'm posting it here (a search didn't get any hits).
The basic theory is nicely explained here: http://www.daifukusensei.com/blog/?page_id=52
However my first thought was: "What does this get me that my 85/1.2 doesn't?" (My second thought substituted a tilt-shift lens in the same sentence.)
I then found this calculator: http://brettmaxwellphoto.com/Brenize...tion/index.htm
At this point it becomes clear... Let's say I used my 100mm f2.8 non-L macro lens on my 5D mk II (at f2.8) and shot 4x3 images with about 25% overlap, the final image, allowing for some cropping, would be the same as if I'd used a 40mm f1.1 lens (all calculations with a bit of guesstimating), at no extra cost other than shooting/stitching time. If I used the 85/1.2 at f2 I'd get a 32mm f0.75 lens. At f1.2 it would be a 32mm f0.45 lens. Stitching 2x2 I'd get a 53mm f0.75 lens that's much sharper than the Canon 50mm f1. So basically the more images you take the shorter the focal length. Using the 300mm f2.8 I could make a 100mm f0.9 lens quite easily (shooting 4x4 images).
Has anyone tried this? I will when I get a sec...
(Edit) P.S. here's a video from the man himself... http://www.ryanbrenizer.com/2011/05/...-instructions/
One of the key things in the video is how fast and simply he shoots, no tripods etc.
The basic theory is nicely explained here: http://www.daifukusensei.com/blog/?page_id=52
However my first thought was: "What does this get me that my 85/1.2 doesn't?" (My second thought substituted a tilt-shift lens in the same sentence.)
I then found this calculator: http://brettmaxwellphoto.com/Brenize...tion/index.htm
At this point it becomes clear... Let's say I used my 100mm f2.8 non-L macro lens on my 5D mk II (at f2.8) and shot 4x3 images with about 25% overlap, the final image, allowing for some cropping, would be the same as if I'd used a 40mm f1.1 lens (all calculations with a bit of guesstimating), at no extra cost other than shooting/stitching time. If I used the 85/1.2 at f2 I'd get a 32mm f0.75 lens. At f1.2 it would be a 32mm f0.45 lens. Stitching 2x2 I'd get a 53mm f0.75 lens that's much sharper than the Canon 50mm f1. So basically the more images you take the shorter the focal length. Using the 300mm f2.8 I could make a 100mm f0.9 lens quite easily (shooting 4x4 images).
Has anyone tried this? I will when I get a sec...
(Edit) P.S. here's a video from the man himself... http://www.ryanbrenizer.com/2011/05/...-instructions/
One of the key things in the video is how fast and simply he shoots, no tripods etc.
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