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Question: Will this lens fit a leica V- Lux 1 camera
Document: It's not my walk around lens - that's the Lumix 25mmk f/1.4 Leica lens on the Oly EM1. But I carry this 14mm in a pocket and thus never miss a shot requring a wide field of view. Very sharp images. Bought it used from Asia via Amazon. Very satified.
This is a great pancake lens for the Panasonic GX1 camera. I used it as a prime lens. I took off the the 14mm to 42mm lens that comes with the camera. This combination makes the GX1 as a walk around camera. Remind me of the classic Leica range finder camera compact and can be put in a coat pocket.
Sadly, this lens lacks a dedicated hood. I bought a metal Leica style 46mm screw-in hood on Amazon and tossed the lens cap. I like my gear ready-to-shoot and a hood affords enough protection to keep buttons, fingers and most dust off the front element. Finally, while not ugly, the cosmetics aren't as attractive as the Olympus 17 2.8. Of course, Olympus has decades of camera and lens design experience over Panasonic and it shows in the details.
I love the Panansonic GF3 camera but the 14-mm kit lens produces only sub-par photos. To get the most out of the camera, get yourself a 45-150 zoom lens and the 20-mm (1.7f-stop) prime lens (and, of course, others should you want them).
One can take an image without visible camera shake at 1/30 of second with the 14mm. At 1/30 of a second any subject that could possible move (person or tree branch) would need to be pretty still to avoid motion blur in the frame.
Incredibly small and light. Perfect materials and workmanship, an exquisite camera-object. Fast,quiet, accurate focus. Extremely sharp including corners, from full aperture. Beautiful light and color. Perfect for street photography, well-paired with the equally fine panasonic 20mm 1.7. Now an equally good  micro 4/3 40-50 f2.0 or 1.4 is needed for portraits (this one with stabilization), and micro 4/3 will be irresistible.
I've sold the Panny 20mm f1.7 lens because the FOV between the two lenses is very close. Having 11, 14, and 28mm in such a small package is handy. I am considering (more curious than a need) getting the 25mm f1.4 for low light, and the storied Leica look. Pleased with the 14mm purchase.
Increasing apperture above 2.5 is counterproductive in low light. That's where 14mm comes to rescue, no blur, much deeper DoF. My current m43 setup: 20mm, 14mm and 40-150mm. Al three lenses are very lgiht and fit in a small bag. The only lens is missing is 50mm f2 macro. Come on Olympus...
This lens is a perfect walking-around lens, and it's great for indoor photography, particularly where lights are low. Its maximum aperture is not f1.4, but such a lens must be larger, heavier, and far more costly (see the new Panasonic Leica f1.4 lens). I've been very pleased with the image quality, focus speed, and utility. The focal length and close focusing capability make it extraordinarily useful.
As sharp as a Leica and as light as a feather. That's all you need to know for this price, for this lens.On the Panasonic GH2 it is even wider than 14mm, owing to the versatile sensor size in landscape mode. On the Olly cams, you of course get the built in IS. One caveat: shooting raw, you will have to compensate for distortion. No biggie. JPEGS are already corrected for distortion in cam. Takes great video and photos, focuses fast and silent.
Answer: No it wont.