The review mentioned noise, which is more of a concern to me, as that could ruin its ability for video. Compatible lenses: H-XA025, H-ES200, H-E08018, H-X1025, H-HSA12035, H-ES12060, H-FS12060, H-X2550, H-HSA35100, H-FSA45200, H-ES50200, H-FSA100300 and H-RS100400 The 20mm is also a nice focal length but the Panasonic 20mm has a history of slow and noisy autofocus, banding at high ISO, and in some cases excessive CA when used on Olympus bodies. Anyway, the Olympus Pen cameras are entirely magic and I’m quite certain, when handled properly, with the best glass, are capable of broadcast quality filmmaking. The thread is 46mm, and does not rotate on focusing, which will be welcome to polarizer users. There's no bayonet mount for a lens hood though - if you wish to use additional shading, a 46mm screw-in rubber hood could be a good option.

Working together with ATOMOS, a global company that creates innovativetechnologies and cloud services forfilmmakers everywhere, the new firmware enables the output of up to 5.8K / 29.97p and C4K / 119.88p RAW video data over HDMI to be recorded as Apple ProRes RAW on ATOMOS NINJA V and NINJA V+devices. When shooting bright light sources at stopped-down apertures – like in the F16 shot above – the 'spikes' of the sunstar are soft-edged and not all that well pronounced. Lateral and longitudinal chromatic aberration (fringing)Featuring a high-speed F1.7, this single-focal-length lens lets you capture beautiful, expressive images with a delicate soft focus and high contrast. The versatile 20 mm of focal distance (Equivalent to 40 mm on a 35 mm film camera) is suitable for wide variety of occasions from daily snapshots to the deliberately creative shots taking advantage of its beautiful soft focus. What I wasn’t prepared for was that the image quality of this little E-P2 and 20 1.7 would surpass a Nikon D3s with a Nikon 50 1.8 (more on this later). I guess that right there is proof that a lens can make all of the difference in the world. When the lens arrived from B&H I opened the box and was pleased to see a lens pouch was included. Not that I ever use them really, but it’s a nice touch. Ergonomics Winner: My personal preference is the Panasonic due to it’s weight and size, but I would have to call a draw on this one. Autofocus

I’ve shot more pictures with both the G1 & GF1 in the last 3 months than i did with the D300 in a year. Based on the review and some opinions I've read, the 20mm f/1.7 is a bit slower to focus, although the significance is subjective and may depend on whether it's used on an Olympus or Panasonic body (and as of now I haven't decided on what the accompanying body will be, so that's still open). The review mentioned noise, which is more of a concern to me, as that could ruin its ability for video. Image quality seems to be a bit of a toss-up between the two, although on these forums it seems like the 15mm garners more praise. The 20mm is smaller, but the 15mm doesn't appear significantly longer... The Panasonic Lumix G 20mm F1.7 ASPH was announced earlier this month as the natural companion to the compact Lumix DMC-GF1 Micro Four Thirds camera, alongside a Leica-branded 45mm F2.8 Macro (the camera is also available with a 14-45mm kit zoom). The H-H020, as Panasonic curiously likes to call it, is a large maximum aperture 'normal' prime in a very compact 'pancake'-type body. It gathers a stop and a half more light than Olympus's M. Zuiko Digital 17mm F2.8 pancake (which is only marginally smaller), and is therefore sure to be of interest to E-P1 owners who want to shoot in low light using a lens well-matched to that camera's size.There is no need of upgrading the camera with DMW-SFU2 if upgrading with DMW-SFU2 was once done before. This Panasonic 25mm F1.7 is fairly sharp across the focal plane, wide open. And even on the highest resolution 20MP Four Thirds sensors, its resolving power should leave most users satisfied. Lateral chromatic aberration – or purple/green fringing near the edge of the frame in high contrast regions – is very well controlled for optically, and is further corrected for digitally in JPEGs and/or in your Raw converter. Here are uncorrected and corrected Raw conversions - as you can see the differences are minor. The BGH1 is the LUMIX’s first box-style camera exclusively designed and developed for professional use. To support a growing need of live streaming, the BGH1 will provide an IP streaming function that enables distant, high-quality image transmission to the social streaming platform online with PC connection over wired LAN. Notably, the LUMIX BGH1 is a unique camera that can stream 4K 60p (50p) video in H.265. The H.265 realizes half the bitrate while keeping the image quality the same as H.264, which means it can provide 2x higher image quality at the same bitrate as H.264. Streaming in ultra-high definition 4K at low bitrate is possible even in the cases where the bandwidth is not broad enough. Rec.Quality options corresponding to RAW video data output will be displayed when [Menu]>[Video]>[Image Format]>[HDMI RAW Data Output] is turned ON.

Considering that this is a very typical Micro Four Thirds autofocusing lens, all you really need to do is mount the lens to the camera, point, shoot, and enjoy the images. Considering that there are no switches on the lens, you’ll need to go through camera buttons and menus to switch the focusing type. Otherwise, simply mount it and forget it. It’s a true joy to use. AutofocusBased on the review and some opinions I've read, the 20mm f/1.7 is a bit slower to focus, although the significance is subjective The D300s is great but I actually prefer the color from the E-P2/20 1.7! The Canon 7D… Well, it’s a nice DSLR no question and gives superior ISO, DR and color. But for all out fun when you go out for a day of shooting? I go with the E-P2 combo. If you do not need the fast FPS, improved high ISO or BULK the m4/3 cams are ideal. Power Save Mode] can be selectable while the camera is powered with an AC adaptor(DMW-AC10, sold separately). I now own a G1 & GF1 with the 20mm F1.7 which is real easy to get hold of in the UK, also the 14-45mm & the 45-200mm & soon to add the 7-14mm.

Even when shooting with the included lens hood attached, artifacts from lens flare can be pretty distracting with this lens. You may notice ghosting when shooting directly into the sun, usually manifesting as a multiple-color haze or purple blobs. As with most Micro Four Thirds lenses, it is devoid of controls–which otherwise need to be activated via the camera body’s switches, menus or buttons. There is a fairly decent sized focusing ring around the lens, but otherwise that’s pretty much it. Build Quality I could really go with either focal length. If autofocus weren't any concern at all, I'd probably go with the 20mm as a preferred focal length and because it's a true pancake. The review I linked has me leaning more toward the 15mm, though. As focusing is performed internally, the 46mm filter thread does not rotate and the lens does not extend, making it perfect for use with graduated and polarising filters. Autofocus speeds are good and focus is virtually silent. Lens flare can cause some loss of contrast especially when shooting directly into bright light sources, while multiple ghosts of bright sources can manifest themselves as colored 'blobs' that get more defined the more you stop the lens down.One oddity we did notice is that, while Panasonic's G-series cameras hold the lens's aperture wide open while you're viewing the scene in record mode, the E-P1 has a habit of stopping down, presumably to regulate the amount of light reaching the sensor. This obviously increases the depth of field in the live view image, which can potentially lead to inaccurate manual focus when shooting at large apertures (exacerbated by a false impression that manual focus is easily obtained). Fortunately this behavior can be countered by assigning depth of field preview to the function button, and using it to force the camera to open the lens up to maximum aperture for manual focus (just hope you don't need to set a custom white balance, which also requires the function button, at the same time). On the camera The Panasonic Lumix 20mm f/1.7 lens gives a 40mm equivalent, and makes it a pleasing lens to use for portraits. 1/4000s, f/1.7, ISO125, 20mm.