Archive for May, 2011
One camera is a Hacked GH1 at 100mb, the other is a GH2. One camera is cropped to 2:35.1, the other actually has the anamorphic lens. They are mixed almost exactly 50/50
What this short video is about is taking all three cameras to the extreme. Is this a particularly useful test? Probably not. But there are always a few people out there that demand the best high ISO performance and will use whatever it takes to capture the shot.
To set this up, we have to keep in mind that the Panasonic cameras will only go to their max ISO settings when in shutter priority mode with an electronic lens. This does not allow us to use the same lens on both brands of cameras, which is typically a place we don’t want to go with these types of tests. Also, there is no specified ISO on the screen while shooting in shutter priority with Ev set to +3, so we have to test against stills in order to ascertain the ISO the camera is shooting at.
Relative ISO. The GH1 at ISO 3200 is equivalent to the GH2 and 7D at around ISO 6400. You can see in this test it has quite a bit less chroma noise just from being at half the ISO of the other two cameras.
Here’s a test from last week with just the gh2 and the 7d – unfortunately again this is less comparable as one lens is f1.7 and the other f2.0
One of the most often asked questions is about the types of electronic lenses that work best with the m4/3 sensor. People are typically are worried about the crop and getting wide-angle lenses. Adapting non-electronic lenses to the GH1 or GH2 is simple, since these cameras have a very shallow flange depth and no mirror, there are adapters to almost every lens in existence.
Crop – In terms of sensor size, the GH1 and GH2 in 16×9 video mode is equivalent to a 1.85x crop compared to a similar lens mounted on a 5D. A Canon 7D/60D/T3i are all a little over 1.6x crop. This crop factor only makes sense if you either come from a 35mm still photography background, as the sensor in the GH1/2 is close to a 35mm cinema camera frame size. Nonetheless, it does help factor in the difference in FOV when using the lenses on each camera.
1. 14-42 MegaOIS 3.5-5.6 – Daylight walkaround lens $199
For people new to DSLRs, or not converting their old lenses to m4/3, this may be one of your first lenses. The 14-42 is cheap, has excellent stabilization, and will work fine in most daylight situations. If you need a zoom that covers the typical kit range at the typical kit-lens speed, this is your choice.
2. Convert your old FD/Nikon lenses - Adapters range from $25-$300 on amazon and eBay but be cautious as some of the cheaper adapters have fitment issues with lenses being too lose or so tight you can’t even remove the lens!
3. Panasonic 20mm f1.7 prime – $399
This lens is optically fantastic from 1.7 to f16. For those that like to keep an electronically controlled prime on their cameras, you really can’t do any better than this little lens. One minor drawback for serious film work is the electronic focus. Other than that, this is a fantastic lens.
1. Panasonic 14-140 Mega OIS f4-f5.8 $849
If you are looking for the overall best midrange superzoom for your AF100, GH1 or GH2, this is your best option. The Mega OIS implementation is one of the best video IS modes I’ve ever seen in a still lens. For others looking for instant quiet video-style autofocus, this lens is your only option. It is not the fastest lens in the world, but for its range and speed it is a truly excellent lens that should be in all m4/3 owners camera bags
2. Olympus 14-54 f/2.8-3.5 $599 – m4/3 adapter $169
A step above the 14-42, this is a regular 4/3 lens which means in order to adapt to a m4/3 mount camera you need an adapter like the Panasonic DMW-MA1 which usually sells for around $169. The nicest feature of this lens is that it is the closest to a constant prime you will find in these focal lengths. The only feature its missing is image stabilization.
3. Leica 14-50 f2.8-3.5 $899 – m4/3 adapter $169
A fantastic zoom lens with a manual aperture ring. One of Panasonic’s best optical quality zooms, with the equally fantastic Mega OIS, the Leica is a great walkaround lens you should also consider when getting a m4/3 camera. The one pitfall is some reported focus breathing from a few customers who have purchased this lens.
4. Panasonic 7-14 f4 ultra wide aspherical lens $974
This is one of the widest aspherical zoom lenses that money can buy. It is significantly wider than offerings than the fantastic Tokina 11-16 lens, albeit you do give up a stop for this performance. If you need a wide angle zoom, look no further.
This is a very small list out of a huge range of lenses that are compatible with these cameras. If you love prime lenses, there are incredible amounts of options for you. There are also higher range zoom lenses as well that have been covered previously, but we may cover them again soon.
So why bother with this $130 wireless system? Most people know they need a Sennheiser EW100 as at least a baseline wireless system. But now in 2011, many people are buying DSLR cameras for video and spending less than $300 for excellent video cameras that have terrrible audio. Most first inclinations are to add a completely useless shotgun to the top of the camera.
Even if this system isn’t the greatest, it’s still 100x more useful than tiny shotgun 7 feet away from your talent.
So how does it fare? For the price, it is certainly usable for web work. The line output is fairly low, but most of these DSLRs have AGC so it’s probably not going to matter. It captures a very compressed and bass-y version of the human voice, but for no budget run and gun style web videos I could see it being perfectly adequate. No, its not going to work over long distances. No, its not going to work with any other interference in the area, but it is going to work better than the built in mic on your dslr and it will work better than a silly shotgun sitting on top of the camera.
Vitality announced on his website today that he is able to downgrade unhackable gh1s to version 1.32. This will allow any GH1 to run the GH13 bitrate and battery patches!
Hurry up and buy a body for $399 before they disappear!
Full Size 1080p PNG files above.
So in this second test with the new lpowell patch for Vitality’s GH1 Hack, we test Color, Dynamic Range and Fine Detail without overloading the codec on the GH1 to the point of crashing, but at the same time have a full range of light to compare the two cameras. Both were at their lowest ISOs which provides the most amount of Dynamic Range. At the same time both cameras used the Smooth Profile.
Youtube video link here
This news must have been ignored by most sites, because I’m just hearing about it now. Supposedly RedRock will have these out in the next month or so, and I know the livestream youtube viewers have been clamoring for such a device. Especially if it lets them keep their Canon EOS lenses and control them on a Panasonic GH2 or hacked GH1.
Birger hasn’t released any other information about their upcoming EOS to m4/3 adapter, but it should be nearly double the cost of this device (admittedly with more features).
In this video we have an absolute direct comparison to the latest lpowell patch for the GH1 vs the Gh2 at 1080p 24.
Quick notes: GH2 still has the upper hand in color reproduction and absolute resolution, but this is as close as a hacked GH1 can get to a GH2.