Cary Knoop

3 hours ago, John Matthews said:

That's too bad, but it was also my suspicion- the G80's IBIS problem isn't fixed with firmware version 1.1 with certain lenses according to 43rumors.com. I guess the GX80/85 is still top dog for Panasonic when it comes to IBIS. Hope the GH5 won't have that same issues as the G80/85.
 

 

 

Looks pretty decent to me and is similar to the GX85. 

I think that some people have unrealistic expectations about image stabilization.

I see what you mean now. 

Yes it is possible, just treat the Premiere files as proxies, then edit the originals in DaVinci and then tell Premiere that the edited DaVinci files are in fact the originals to be replaced for the proxies.

Still I would question the point in coloring first in DaVinci and then editing in Premiere.

But everybody has their way of doing things!

I do not understand it either, what do you mean by overwriting the original files and color pallete?

Premiere does not edit source files.  Instead Premiere allows you to place those source files in a sequence, edit them in memory and render the sequence to a new file.

1 minute ago, vulgatron said:

Ok thanks, in that case you think if set to the maximum focal length will have an impact if used at the minimum? I mean if set at 35mm will not work properly at 18mm

Also this made me wonder... how you decide the focal length that you have to mark on the camera? If using a 50mm lens, should you select the 50 or the 100mm due to the 2x crop factor? or even 75mm if using a booster?

I would put it somewhere in the middle and start to experiment from there.

You should enter the true focal length of the lens, however if you use a booster it should be the focal length changed by the booster.

5 minutes ago, vulgatron said:

Good to know, I'll be using a "lens turbo" instead but good to know that the stabiliser  works that well with that range.

It works as well with the Mitakon, however in that case you need to set your preferred focal length which must be a compromise unless you won't zoom.

51 minutes ago, vulgatron said:

Nice & steady, is this handheld with the camera stabilisation only?

Yes, the lens has no stabilization built in.

Ran a small test using the GX85, Metabones Speedbooster Ultra with the 2.5 firmware and the Sigma 50-100mm f/1.8

Interestingly I cannot set the aperture to f/1.2 f/1.3 is the minimum.

8 hours ago, John Matthews said:

Does anyone know why Panasonic has limited its shutter speed to 1/30 in video mode?

 

Think about it, suppose you make a video at 30 frames per second and you use a shutter speed longer than 1/30 of a second. 

You would simply get duplicate frames because there is only time for 1/30 of a second per frame.

6 hours ago, User said:

Hi Cary, thanks for jumping in on this.
It was my understanding that if you have a lot of movement going in in your video you want a Key Frame Distance that is not so high, so I went with 1.
I want to export a file that is 6:30 and I'm getting files that are about 3.5 gigs with the above settings. They look great on Vimeo, they just seem to stutter ever so slightly.
What Key Frame Distance do you suggest?

It really depends on a lot of things what would be the best setting, but if you want to be very conservative use a few frames. 

All intra (1 frame) would require a significantly higher bitrate.

On 11/4/2016 at 5:33 AM, User said:

Exporting a file from Premiere Pro using:
H.264
2560x1440
Key Frame Distance: 1

Contrary to my post above, I'm getting choppy playback using VLC 10.2.4 but it plays fine with Quicktime Player 10.2. It also has choppy playback on Vimeo.

Anyone know what the problem is? Key Frame Distance?

Key Frame distance of 1 is not going to help,  it will actually make the compression less effective.

The only time when you want a key frame distance of 1 is when you want to use H.264 as an editing codec.

Downloaded it and after an initial check it seems to work now!

Wonderful!

10 karma points to Metabones and Conurus!

6 hours ago, Michael Ma said:

 I think we are about 2 generations away from matching the performance of gimbals.  Still very useful with some warp stabilization. 

 

I believe that very soon it will surpass the performance, it is a lot easier to gyro stabilize an ultra light sensor than a whole heavy camera with lens.

Show a few seconds of the video before and after you rendered it in Premiere so we can all take a look.

.

1 hour ago, jonpais said:

@Cary Knoop What 'high ISO's are you referring to? 3200? 6,400? 'High ISO' is a vague statement, and mud is not an accurate description of the noise artifacts that pop up from 800 and beyond either. In fact, I don't know of any micro 4/3 camera that excels in low light, which is why it's recommended to shoot with fast glass rather than high ISO settings, and I seldom if ever shoot higher than ISO 800 with my GH4 precisely because of noise issues. The G7 supposedly had a one stop increase in clean low light ability over the GH4 according to Max Yuryev (here is a comparison he did between the $600 G7 and Sony's $3,000 low light monster A7s2). And the G85 will in all probability have better low light performance than the GH4, too. So, no reason to prefer the GH4 over the G85 if low light performance is the sole criterion.

I'd say 800 ISO is already high for the GX85.  A noise pattern does obviously not look like mud but that is not what I am describing. The problem is the aggressive noise reduction at high ISO.  It kills resolution and color accuracy, and, in my opinion, and you may not like this term, but that's what I see, the result is mud.

The only "issue" is the levels used by the GX85. The highlights must be brought into legal, it's not a big deal to do but some people may not realize the GX85 does that and they will get clipped highlights.

However high(er) ISO is really bad on the GX85.  It seems the noise reduction is dynamic and really kicks in at high ISO, which basically will give you mud.

On 10/25/2016 at 1:38 AM, TheRenaissanceMan said:

I'm not seeing that massive improvement in rolling shutter Andy was talking about. Seems there's no real improvement in quality from the G7/GX85.

I think there is definitely a difference between GH4/G7 and GX85. 

The colors are much better.

G85 will give you the added value of a better body, a better viewer and better battery options but I do not expect the image quality to be much different from the GX85.

4 hours ago, jasonmillard81 said:

One would save $400 purchasing a C100 II bundle from Texas Media Systems than from BH or Adorama.  They don't charge sales tax and I could not find exactly why.  Both Yelp and the BBB rate them above even BH or Adorama. 

 

Any experience with them or advice?  I did also see a C100 II for $2K used on Craigslist which also piqued my interest.

 

 

What bundle are you talking about?

A C100 II cost $11,999 which the same price as it is on Adorama and B&H.

3 hours ago, conurus said:

I work for Metabones and let me confirm that this is indeed a firmware bug as well as to apologize to you for the inconvenience. This problem is that IBIS is OFF and you cannot turn it on with the camera's menus. It occurs with only one lens, the Sigma 50-100/1.8 DC HSM Art. A firmware fix will be published in a matter of days.

 

Wonderful!

Metabones never disappoints! 

10 hours ago, Davey said:

The DS1 is simple to balance but quality control is poor - and after sales service even worse.

I second that. 

IKAN has zero customer service!

However if you still want to buy an IKAN I recommend OwlDolly.com I have gotten great service from them!

34 minutes ago, jonpais said:

This isn't good news at all.

Hopefully they acknowledge the problem and provide a fix. 

I can use the Mitakon on the Sigma 50-100mm but it is physically impossible to manual focus while hand holding this lens.

33 minutes ago, jonpais said:

@Cary Did you try the Sigma 50-100mm f/1.8 lens on the Mitakon?

Yes I did!

I have both the Metabones and the Mitakon. 

With the Sigma on the Mitakon IBIS works fine, but on the Metabones it does not work.  

It should be easy to fix this with a firmware update.  Conceivably Metabones does not understand the varifocal protocol to IBIS but then just have it pass through and have the user ask for a fixed focal length for IBIS to operate on as is the case with a fully manual lens.

1 minute ago, vulgatron said:

I finally thought that it might be a bit overkill for me right now going that route, and just found a used pana 42.5 1.7 for a good price as well as a 25 1.7, I think for now I'll give it a go with those since I believe I might end up with more trouble than satisfaction, although I really like the image that lens offer. In a couple of months I'll be travelling around doing some interview recordings and a bit of scenery and I think I'll have more than enough with the Panasonic primes, plus the mini 12-32 if I need wider shots. I'll probably carry that on a GX80 and if I don't sell It or trade it for a gh4/g80 with my RX10 mk2. They should keep me covered and lightweight.

The 42.5 f/1.7 is great for head shot interviews.  And the OIS works great with IBIS as well.

10 hours ago, Jpr said:

I'm really looking forward to seeing how the ibis works with lenses like sigma 18-35. The shakey nature of gh4 always put me off it for handheld work, but if something like the sigma can be used handheld with the g80 for the cost it would be a great option. 

Presumably the IBIS on the G80/85 is similar to the one on the GX80/85 and there it works great. 

Here is an example of using a handheld manual 135mm lens (100mm after focal reduction) using IBIS only and no post image stabilization:

However the Sigma may be a problem, I tried to use the Sigma 50-100mm F 1.8 but the Metabones Speed Booster seems to disable IBIS.

Shot on the GX85

The Speed Booster seems to turn off IBIS.  Using a generic focal reducer IBIS works fine but not through the Speed Booster.

Am I doing something wrong or is it a Metabones firmware bug?

I am using a Panasonic GX85 with the Canon EF to MF3 ULTRA 0.71 Speed Booster with a Sigma 50-100mm lens.