Seven Stops of Stabilization!!! .... A year ago, people were citing it was an impossible feat!
Feb 18, 2019 02:13:04 #
Weren't they? … Do you remember? … Something to do with the turning of the earth on its axis! … So now, has the world changed its gravitational pull? … Or we have made a compromise or two? Also, what about the idea one could ONLY have IBIS, or ILIS. Combining the two wasn't possible! … What do we have now?
Feb 19, 2019 13:41:34 #
Curiously - even though this thread-to-be was posted at the same time, as the one on AI (and, thus, is in some small way, connected with it - as BOTH features are only possible, with the E-M1X) it's been - rather sadly - neglected. Can't, honestly, think why - as it's just about as valid as the one on AI. And, now - we have an announcement the a9 will be retrofitted with AI, by a firmware update, it seems even more valid. It still points out the Oly E-M1X is ahead of the game on Stops, even if no longer the lone AI camera. Right?
Feb 19, 2019 15:48:58 #
The Nikon Z6/Z7 have IBIS and work in conjunction with Nikon VR lenses (ILIS?). Apparently, having the two types of stabilization work together doesn't really add any more stabilization.
Feb 19, 2019 16:04:11 #
CO wrote:
The Nikon Z6/Z7 have IBIS and work in conjunction with Nikon VR lenses (ILIS?). Apparently, having the two types of stabilization work together doesn't really add any more stabilization.
CO … Oly is reporting when one uses the E-M1X w/ one of three? lenses - one achieves, actually - 7.5 stops!!
Why would they make such a statement, if they could not prove it?
Yes - VR (Vibration Reduction) VC (Vibration Correction) IS (Image Stabilization) OS (Optical Stabilization) is ALL one and the same thing … ILIS - or IN-LENS Image Stabilization … IBIS - as featured in Pentax and almost all Sony cameras - as well as some Oly and Panny models - is IN-BODY Image Stabilization (IBIS)
Feb 19, 2019 17:49:57 #
Chris T wrote:
CO … Oly is reporting when one uses the E-M1X w/ o... (show quote)
I'm sure that's correct. I'm not familiar with Olympus. They might be the exception.
Feb 19, 2019 17:54:27 #
CO wrote:
I'm sure that's correct. I'm not familiar with Olympus. They might be the exception.
So, with ALL cameras, then - except Olympus, combined use of IBIS and ILIS is fruitless, as one defeats the other … do I understand you correctly, CO?
Feb 19, 2019 18:13:44 #
Chris T wrote:
So, with ALL cameras, then - except Olympus, combined use of IBIS and ILIS is fruitless, as one defeats the other … do I understand you correctly, CO?
I haven't read anything about IBIS + ILIS being effective in other cameras. I just read an interview with an Olympus engineer who describes the IBIS in the Olympus E-M1 II. He says that IBIS alone gives 5.5 steps of stabilization and 6.5 steps with IS lenses. He's saying that 6.5 stops is the limit due to the earth's rotation interfering with gyro sensors. That's new to me. I had no idea that the earth's rotation could interfere with the gyros in the camera.
AW: Can we talk about the E-M1 Mark II’s new IS system. How well does it work with and without IS lenses?
SK: The in-body stabilisation itself gives 5.5 steps, and the Sync IS gives 6.5 steps with OIS lenses. 6.5 stops is actually a theoretical limitation at the moment due to rotation of the earth interfering with gyro sensors.
Here is the interview:
https://www.amateurphotographer.co.uk/latest/photo-news/exclusive-interview-setsuya-kataoka-olympus-95731
Feb 19, 2019 18:23:46 #
CO wrote:
I haven't read anything about IBIS + ILIS being ef... (show quote)
And, supposedly, CO - with the new E-M1X - that goes up another full stop to a TOTAL of 7.5 stops!!!!
I'd love to know, exactly, how the earth's rotation, interferes with the gyro sensor.
I've heard this before - a year or so, ago. I thought it was something to do with gravity.
I guess I got the two elements of science wrong. So, it's the earth's rotation, then - which inhibits Oly cameras from attaining more than 5 stops, using the IBIS alone. Got it! … Thanks, CO …
Feb 19, 2019 18:27:51 #
Certain Panasonic lenses and cameras have dual IS. It’s good, but it’s not Olympus good.
Feb 19, 2019 18:34:02 #
Cdouthitt wrote:
Certain Panasonic lenses and cameras have dual IS. It’s good, but it’s not Olympus good.
Dual IS, huh? … So that means their stop capability is doubled, does it?
"It's NOT Olympus good" C?
Feb 19, 2019 18:48:18 #
Chris T wrote:
And, supposedly, CO - with the new E-M1X - that go... (show quote)
I hadn't considered the earth's rotation afecting IBIS, but if you think about it, the camera is going to rotate once every 24 hours.
But gravity is not a factor.
Feb 19, 2019 18:49:25 #
Chris T wrote:
Dual IS, huh? … So that means their stop capability is doubled, does it?
"It's NOT Olympus good" C?
"It's NOT Olympus good" C?
No. Dual Image Stabilization. Meaning it combines in body image stabilization and in lens stabilization. It works quite well, but it’s not as effective as the em1ii or em1x.
Feb 19, 2019 19:07:13 #
JimH123 wrote:
I hadn't considered the earth's rotation afecting IBIS, but if you think about it, the camera is going to rotate once every 24 hours.
But gravity is not a factor.
But gravity is not a factor.
No, I guess not, Jim … I noted the different sciences earlier. Yes, but, even IF the camera DOES rotate once every 24 hours (as we all do, who reside on this ever-rotating Earth) I still don't understand how it affects the camera's gyro, and inhibits it from attaining more than 5.5 stops with its IBIS … do YOU, Jim?
Feb 19, 2019 19:09:18 #
Cdouthitt wrote:
No. Dual Image Stabilization. Meaning it combines in body image stabilization and in lens stabilization. It works quite well, but it’s not as effective as the em1ii or em1x.
Earlier, C … CO pointed out when one employs ILIS and IBIS together, one cancels out the other.
So - what makes the Panny and Oly cameras so special? … Is it related to the smaller format, or no?
Feb 19, 2019 20:00:42 #
Chris T wrote:
No, I guess not, Jim … I noted the different sciences earlier. Yes, but, even IF the camera DOES rotate once every 24 hours (as we all do, who reside on this ever-rotating Earth) I still don't understand how it affects the camera's gyro, and inhibits it from attaining more than 5.5 stops with its IBIS … do YOU, Jim?
This is the first I have considered this. If you try to take images of stars, you can only go a certain number of seconds before star trails form. The longer the focal length, the sooner you see star trails.
Now consider trying to image a stationary object while the earth is rotating. I'm still trying to figure out the earth's rotation on this.
But I did find this: https://www.dpreview.com/forums/thread/4059288
The above link refers to this link, but here it is by itself where it mentions the effect of earth's rotation:
https://www.amateurphotographer.co.uk/latest/photo-news/exclusive-interview-setsuya-kataoka-olympus-95731
On the 2nd page of the dpreview link, there is an example given where the camera is at the equator and shooting north. The rotation of the earth is going to then cause the camera to try to stay pointed at the stars and the stationary object would show some movement.
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