GH2 Hack + Zeiss Super 16 Zoom + ETC mode
- Thread starter Kholi
- Start date
cesardeuve
Member
yeah, you' re probably right... but working with a prime lens, you have two diferents shots for the same price (with and with out etc mode) 
anyway, is obvious that there is a big place for a "super16mm" like zoom lenses, but covering 4/3"... (i mean, video/film friendly lenses)
anyway, is obvious that there is a big place for a "super16mm" like zoom lenses, but covering 4/3"... (i mean, video/film friendly lenses)
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Yeah it does look pretty bad until you hit record, that's just something you have to get used too. When you hit record, though, it's an entirely different world. You can't monitor out while using ETC mode, though. =T
Only thing you want to make sure you do is stay below or at 800 ISO, anything above that is too noisey.
Not sure why anyone's getting softer results with ETC mode, it does have much much less aliasing than regular mode but other than that you really shouldn't see much of a difference other than noise (and the crop, and a lack of jello).
I'm also considering going S16 for a large project, the issue that you can't monitor out at all when you're using ETC is kind of a pain, and also the noise can be scary at times.
Only thing you want to make sure you do is stay below or at 800 ISO, anything above that is too noisey.
Not sure why anyone's getting softer results with ETC mode, it does have much much less aliasing than regular mode but other than that you really shouldn't see much of a difference other than noise (and the crop, and a lack of jello).
I'm also considering going S16 for a large project, the issue that you can't monitor out at all when you're using ETC is kind of a pain, and also the noise can be scary at times.
cesardeuve
Member
hi kholi, thanks for the info... very interesting (i forgot that thing about can't monitor in etc mode)
(i use etc mode with my voiglander 25mm when i need it, no problem at all... for sure it has less resolution, but i really think that is useful in some scenarios -when you don't have time to change lenses, when you need a diferent shot for better edit, etc..)
(i use etc mode with my voiglander 25mm when i need it, no problem at all... for sure it has less resolution, but i really think that is useful in some scenarios -when you don't have time to change lenses, when you need a diferent shot for better edit, etc..)
But it doesn't have less resolution. IT's a tighter crop, but it's a full 1920x1080. IN fact, it's technically better than shooting the full sensor because the full sensor's quality isn't, well, full quality. No pixel binning, scaling, etc. It's just an exact 1920 x 1080 image.
There's just more aliasing using non ETC mode.
Barry_Green
Moderator
ETC mode does definitely have some benefits. Just remember that there are tradeoffs too, not the least of which is that you're back to using a small sensor camera at that point. ETC in 1080 is about the same chip size as an EX1, and in 720p it's the same chip size as an HPX170.
Not that that is necessarily "bad", of course, but it does pretty much mean you won't be getting the shallow DOF that so many people turned to DSLRs to get in the first place.
Not that that is necessarily "bad", of course, but it does pretty much mean you won't be getting the shallow DOF that so many people turned to DSLRs to get in the first place.
Is it really 1/2-inch? It doesn't feel that small in 1080ETC, definitely in 720ETC, but not so much 1080. It feels more like 2/3". EDIT: Ah, yeah Barry is right. It's just slightly larger than 1/2" -- crazy. Always seemed a lil' bigger than that. Still looks pretty sweet though! So you can basically get a normal video camera out of the GH2 if you need one, just need a lens that's wide enough.
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It would be a little scary to build much more than a straight-up short film or short scene around ETC/S16, just because of the noise and not being able to monitor it as you shoot... But, it really does look awesome.
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plasmasmp
Well-known member
8.9 diagonal so it should be right between 1/2 and 2/3 so that's why it should feel that way right?
I've never seen any tests of high end 2/3 cine lenses on the gh2. It's always old TV zooms. (outside of these two videos) The biggest problem with etc is the blurry cropped representation before you hit record. lack of HDMI certainly doesn't help either.
Wish I still had access to a stable of angenieux s16 lenses to play around with
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http://www.youtube.com/watch?v=rje_9Dzta-k
There is this old 12 month test but it does not show like on a 1080P tv.
There is this old 12 month test but it does not show like on a 1080P tv.
It may be your glass. But you aren't losing any resolution, or you should not be. Youre literally shooting a 1920x1080. If your glass was made for say 2/3 or uou were using glass that resolved more in the center (since you're shooting through it) then it should be as resolute as using the full sensor yet without the heavy amount of aliaising.
Which may be what youre seeing, it could appear softer without the crunchy aliasing
8.9 diagonal so it should be right between 1/2 and 2/3 so that's why it should feel that way right?
I've never seen any tests of high end 2/3 cine lenses on the gh2. It's always old TV zooms. (outside of these two videos) The biggest problem with etc is the blurry cropped representation before you hit record. lack of HDMI certainly doesn't help either.
Wish I still had access to a stable of angenieux s16 lenses to play around with
I'm actually interested, now, in trying out some of the manual 2/3" Zooms and primes. I'm curious as to how those would perform on the GH2 in ETC mode. If only we could monitor out, man. ARG
That was a high res pana lens ,if your eyes cant see the obvious more lines and detail in ETC OFF i am sorry,as i said on tv it shows a lot more than on pcs with you tube.
My eyes prefectly fine. That lens is NOT made for ETC mode, that means there's going to be either center softness or edge softness. That's just how glass works ,man. You shoot out the center of a lens and you have to fight with abberation, that's the law of physics.
You are not losing any resolution or gaining any by not using ETC unless it's caused by your glass.
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cesardeuve
Member
can this be hacked or is imposible? calling vitaaaaaaalyyyy
plasmasmp
Well-known member
I've got res charts that show it doesn't lose resolution, but it does get moire. I was doing some anamorphic noise testing in crop mode.
ETC anamorphic 320iso
http://i43.tinypic.com/15rh8vo.png
ETC anamorphic 320iso
http://i43.tinypic.com/15rh8vo.png
So lenses like the Pana 14-140mm & 14-142mm that can take 16mp stills and come with the GH2 dont work with ETC and non Pana lenses are needed ,very strange Pana
So lenses like 14-140 & 14-42 that can take 16mp
plasmasmp
Well-known member
That was the point of posting that pic, that's actually the 14-140 (@14) ETC with an anamorphic adapter. You'll need to test the limits of your lenses, but keep in mind diffraction will set in at around f11 and will be much more visible in ETC. Use filters in daylight like kholi and you'll get better results.
As for the moire, its very light, but its there even without the anamorphic adapter. It's still without a doubt better than any other interchangeable still camera at 100mb and above
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