GH5 GH5s Dual I.S. perfomance versus 5-axis stabilization of GH5.

Danilo Del Tufo

Danilo Del Tufo

Well-known member
Hello there! I'm trying to understand if just Dual I.S. of Gh5s is sufficient to stabilize the shots (with stabilized Panasonic Lenses), or do you need the 5-axis stabilization of the GH5 to have good shots? Can someone post some samples about just Dual I.S. without the 5-axis stabilization? Thanks!
 
Dual IS refers to in-body + optical (in-lens).

So, GH5s does not have Dual IS. The GH5 has dual IS (lens + in-body).

The GH5s has optical (in-lens) only, depending on the lens.

In my experience, it is the in-body (IBIS) of the GH5 that makes the largest difference. It's a game changer.

Optical lens stabilization (IS), available with select lenses on the GH5s, is good to remove some micro jitters, etc. Don't count on it for performing quasi dolly movements handheld with the camera, etc.

Dual IS on the GH5 makes the biggest difference at long focal lengths and zoom lenses.

Hope this is helpful.
 
filmguy123 said:
Dual IS refers to in-body + optical (in-lens).

So, GH5s does not have Dual IS. The GH5 has dual IS (lens + in-body).

The GH5s has optical (in-lens) only, depending on the lens.

In my experience, it is the in-body (IBIS) of the GH5 that makes the largest difference. It's a game changer.

Optical lens stabilization (IS), available with select lenses on the GH5s, is good to remove some micro jitters, etc. Don't count on it for performing quasi dolly movements handheld with the camera, etc.

Dual IS on the GH5 makes the biggest difference at long focal lengths and zoom lenses.

Hope this is helpful.
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Thanks for clarification! So assuming that you have just the optical (in-lens) only, what's the difference if just panning the Gh5s or remain stood still. I'm not interested about walking with the camera.
 
IBIS is much better.

In-lens reduces micro jitters.

IBIS tends to get into the territory of reducing macro jitters and dialing down the "floatiness" quite a bit.

Honestly, it's hard to explain without trying it. Searching some YouTube videos might help, but if you have a local camera store, bring your own SD card and try GH4 vs GH5 with IBIS, Dual IS, Lens only, and No IS -- and then review at home.

What you are really asking is, "I really want the GH5s - will I be able to live without IBIS? Will in lens IS be enough?"

The answer is yes, if you invest into a shoulder rig and are ok using that in your filming.
 
joe12south said:
Don't forget the GH5s also has electronic image stabilization, like the EVA-1.
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Bassman2003 said:
Any reports about the performance of EIS? Not much comes up on a google search with the GH5s
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I'm also interested about EIS of GH5s, furthermore it seems that Autofocus performs better on Gh5s and also image looks more pleasing, with more colors. I dunno if GH5s is really a 14 stops camera as Panasonic claims than 12 stops of GH5.
 
Panasonic is not claiming 14 stops with GH5s, there seems to be some confusion that got spread. From what we know, GH5s is almost certainly 12 stops. However, it maintains 12 stops at Dual ISO of 2500 (hence the 2 stop improvement over the GH5, which lost 2 stops as ISO bumped upwards).

I would not use EIS for pro work, it leaves digital artificats.

I don't think the AF has improved on the GH5s in any substantial or notable way from what I have seen or read.
 
filmguy123 said:
Dual IS refers to in-body + optical (in-lens).

So, GH5s does not have Dual IS. The GH5 has dual IS (lens + in-body).

The GH5s has optical (in-lens) only, depending on the lens.

In my experience, it is the in-body (IBIS) of the GH5 that makes the largest difference. It's a game changer.

Optical lens stabilization (IS), available with select lenses on the GH5s, is good to remove some micro jitters, etc. Don't count on it for performing quasi dolly movements handheld with the camera, etc.

Dual IS on the GH5 makes the biggest difference at long focal lengths and zoom lenses.

Hope this is helpful.
Click to expand...

Having said that, some lenses such as the Canon 70-200 mkii have IS that to me feels really good, maybe in some ways better than dual IS.
 
The GH5s has just enough pixels for video. Using EIS could very well take a detail and quality hit. The EVA1 has a sensor with a ton of extra pixels to help with the over sampling when using EIS. The GH5s does not so quality will likely take a hit. I would not use EIS even as a last resort. A last resort is grabbing a cheap tripod long before trusting EIS.
 
filmguy123 said:
Panasonic is not claiming 14 stops with GH5s, there seems to be some confusion that got spread.
Click to expand...

They are indeed claiming 14 stops - in official youtube videos anyway. Whether or not this in itself is a mistake is another matter.


As to the OIS vs DualIS - here is some side by side:


(Starts at 13:30mins)
 
Among my lens sets I own a set of Nikon AF-s 2.8 ED zooms that I like so much (my favorite lenses though heavy) that I essentially use them as Variprimes...to my eye they're that good...a 17-35, 28-70 and 80-200....they are parfocal and with an XL Speedbooster very fast through the whole zoom range...and held on a shoulder rig with IBIS on the GH5, it gives the appearance of shooting with a 40lb fully rigged Alexa or F65 in terms of the movement....zero jitter....of course, much depends on how one uses their cameras, but my advice to you would be until you've used Panny's IBIS, someone cannot really adequately articulate the experience....so in short, rent them both for a day, and try them out...it would be money well spent
 
Yep, we will get along without the IBIS but it is an opportunity missed by Panasonic. This launch would have been flawless if it was included on the camera.
 
Bassman2003 said:
Yep, we will get along without the IBIS but it is an opportunity missed by Panasonic. This launch would have been flawless if it was included on the camera.
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I'm not sure it is fair to say it was an opportunity missed. We don't know the technical limitations as to why the GH5s doesn't have IBIS. If the pixel size would have been dialed back a little bit or the multi-aspect sensor eliminated then there may be little point to the GH5s. Keep in mind the multi-aspect sensor means the corners of video are right at the edge of the image circle from the lens. There is likely no room to compensate the sensor to move even just a little with IBIS. At least not to the levels we enjoyed on the GH5.

It may in fact be physically impossible to add IBIS to a camera that maximizes the image circle with a multi-aspect sensor. If the GH5s eliminated that multi-aspect feature then it wouldn't be as good in low light and would have seemed like a minor incremental update to the GH5. In order to make the GH5s stand out Panasonic had to go to the opposite extreme and maximize the size of each pixel on the sensor to match or top APS-C and FF cameras. Thats how the GH5s will stand out, as the new low light champ.
 
Thomas Smet said:
The GH5s has just enough pixels for video. Using EIS could very well take a detail and quality hit. The EVA1 has a sensor with a ton of extra pixels to help with the over sampling when using EIS. The GH5s does not so quality will likely take a hit. I would not use EIS even as a last resort. A last resort is grabbing a cheap tripod long before trusting EIS.
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Recommended for optimal PQ, no. But never say never. If I'm in Kenya and need to hang outside the door of a moving safari van to catch a shot of a mother lion and cubs (done that with a GH4), I'll happily take a slight loss of resolution for some stabilization.
 
fboonzaier said:
...until you've used Panny's IBIS, someone cannot really adequately articulate the experience....so in short, rent them both for a day, and try them out...it would be money well spent
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This! I never realized I wanted IBIS until I had it. Two different cameras for two different styles of shooting. One is not an upgrade over the other. (In fact, Panasonic revealed that they wanted to release them simultaneously.)
 
TheTrickster said:
They are indeed claiming 14 stops - in official youtube videos anyway. Whether or not this in itself is a mistake is another matter.
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What "official" video? I've heard some ambassadors mention it, but not from Panasonic.

A two stop difference would be noticeable in some of the samples that have been posted. Remember, 13 stops would double the range. 14 stops would quadruple it.
 
Thomas Smet said:
I'm not sure it is fair to say it was an opportunity missed. We don't know the technical limitations as to why the GH5s doesn't have IBIS. If the pixel size would have been dialed back a little bit or the multi-aspect sensor eliminated then there may be little point to the GH5s. Keep in mind the multi-aspect sensor means the corners of video are right at the edge of the image circle from the lens. There is likely no room to compensate the sensor to move even just a little with IBIS. At least not to the levels we enjoyed on the GH5.

It may in fact be physically impossible to add IBIS to a camera that maximizes the image circle with a multi-aspect sensor. If the GH5s eliminated that multi-aspect feature then it wouldn't be as good in low light and would have seemed like a minor incremental update to the GH5. In order to make the GH5s stand out Panasonic had to go to the opposite extreme and maximize the size of each pixel on the sensor to match or top APS-C and FF cameras. Thats how the GH5s will stand out, as the new low light champ.
Click to expand...

I agree there may be a technical limitations but what I meant was making a camera that would be a slam dunk/no brainer for everybody to purchase. Instead you have a bunch of reviewers stating "it's great but..." instead of saying "this is the one...".
 
Bassman2003 said:
I agree there may be a technical limitations but what I meant was making a camera that would be a slam dunk/no brainer for everybody to purchase. Instead you have a bunch of reviewers stating "it's great but..." instead of saying "this is the one...".
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How much of that has to do with how entitled of a society we have become where we can only cling on to the negative? We are no longer satisfied by the amazing tools we have. Every time a new camera comes out the internet is flooded with reviews and comments of disappointment because 50 tick marks were checked off but they got this one thing wrong. I find that kind of sad that we as creatives can no longer appreciate the tools we have. Having worked with video for 20+ years I have seen some amazing and stunning transformations in what we can do today with affordable tools.

The GH5s is not missing anything or flawed in any way. It is only flawed in the minds of those that want some magical perfect camera.
 
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