https://www.sonyalpharumors.com/confirmed-the-new-sony-a7rv-has-8-stop-ibis-and-a-fully-articulating-screen/
Hard to believe.
Chief Editor - opticallimits.com
Doing all things Canon, MFT, Sony and Fuji
Given the small lens mount and the ease with which with little mount can hide the corners of the sensor ........ I have to ask three questions ....
1. is there a crop to achieve this in the case of video/stills ?
2. for stills (where a crop would be a compromise and would better not being used), .......... what is the maximum focal length that can accommodate this 8 stop facility?
3. could this 8 stop capable IBIS only be effective with wide angle lenses?
Obviously Sony's claim must be based on facts ....... it's just establishing exactly what they are !!
Hi Dave,
I would speculate that 8 stop will work up to 50mm. I can tell you that using A7 r3 with lenses above 100mm its like there is no shake reduction at all. There might be a threshold at what point IBIS wont be effective in general. Now that we see computational photography used more and more in dedicated cameras I won't be surprised if the crop factor is applied in the process. I hope this feature is activated by choice instead of being default setting.
10-19-2022, 08:09 PM
(This post was last modified: 10-19-2022, 08:22 PM by stoppingdown.)
Latest rumours are about pixel shifting. I suppose next rumor will be about time travelling, so if you get a wrong shot the camera allows you to redo it.
Seriously... Yes, I understand your point about the fact that we need less stability with shorter focal lenghts. But I see that some landscape photographers are happy to be able to hand-held wide angles at 1/15 sec. and perhaps one stop slower without tripod.
stoppingdown.net
Sony a6300, Sony a6000, Sony NEX-6, Sony E 10-18mm F4 OSS, Sony Zeiss Vario-Tessar T* E 16-70mm F4 ZA OSS, Sony FE 70-200mm F4 G OSS, Sigma 150-600mm Æ’/5-6.3 DG OS HSM Contemporary, Samyang 12mm Æ’/2, Sigma 30mm F2.8 DN | A, Meyer Gorlitz Trioplan 100mm Æ’/2.8, Samyang 8mm Æ’/3.5 fish-eye II | Zenit Helios 44-2 58mm Æ’/2
Plus some legacy Nikkor lenses.
(10-19-2022, 05:16 PM)borisbg Wrote: Hi Dave,
I would speculate that 8 stop will work up to 50mm. I can tell you that using A7 r3 with lenses above 100mm its like there is no shake reduction at all. There might be a threshold at what point IBIS wont be effective in general. Now that we see computational photography used more and more in dedicated cameras I won't be surprised if the crop factor is applied in the process. I hope this feature is activated by choice instead of being default setting.
I remember, the IBIS efficiency is also zero in RF mount when using the RF 600/800 f/11.
Chief Editor - opticallimits.com
Doing all things Canon, MFT, Sony and Fuji
It's been announced. DPR have a good breakdown on the new things coming with it. There are some good upgrades (view finder, wifi, focus stacking...), except the price.
I would assume that cropped 1.24 video capture will help the 8 stop shake reduction claim.
I hope Sony will release an update for older cameras to take advantage of the focus stacking.