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IBIS not working with new Samyang AF 12mm?

Started Jan 14, 2022 | Discussions thread
Rightsaidfred
Rightsaidfred Senior Member • Posts: 2,179
A bit off-topic: IBIS capabilities, relative and absolute (?)
2

lewiedude2 wrote:

What Truman said, but before doing so, I’d love to see some 1/2 and 1 second images that are tack sharp. It would enlighten me to the IBIS capabilities of the X-S10.

Is it really as simple that IBIS does prolong by x f-stops (relative gain), or is there also an 'absolute' limit?

A shaky person will need a shorter ss w/o stabilization as well as with stabilization activated. But is it really a parallel shift in the gain of stabilization? Is a gain of 4 stops starting from 1/500 s ending up at 1/30 s technically the same challenge for the IBIS as a gain of 4 stops starting from 1/60 s ending up at 1/2 s?

Interestingly, there is article that states that Earth’s Rotation Limits IBIS Performance to 6.3 Stops.

Regards,

Martin

 Rightsaidfred's gear list:Rightsaidfred's gear list
Fujifilm X-T20 Fujifilm X-T4 Fujifilm XF 35mm F1.4 R Fujifilm XF 18-55mm F2.8-4 R LM OIS Fujifilm XF 55-200mm F3.5-4.8 R LM OIS +5 more
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