firstlight Posted September 30, 2013 Share #21 Posted September 30, 2013 Advertisement (gone after registration) There is a further huge difference in EVF's if your camera/lense provides image stabilization, which the new M doesn't offer at all. So the smallest eruption will be reflected delayed on the crapy 60fps EVF. No wonder the stomach goes upside down Cheers Link to post Share on other sites More sharing options...
Advertisement Posted September 30, 2013 Posted September 30, 2013 Hi firstlight, Take a look here EVF2 with the M240 Makes me sick.... I'm sure you'll find what you were looking for!
wlaidlaw Posted September 30, 2013 Share #22 Posted September 30, 2013 It might be worth seeing your doctor to find out if you have incipient benign paroxysmal positional vertigo or a vestibular problem. An episode can be triggered by various visual stimuli, once you have the problem. Once you have had a bad attack, as I had about 5 years ago when I got a form of shingles which affected one of my vestibuli, it tends to come back from time to time. I was given the usual full carrier bag of pills by my French GP (I presume they must get paid on the number of prescriptions they issue) and it started to go away with the shingles after 4 or 5 days and was gone after just over a week. It is horrible. You get seasick when you stand up and when you lie in bed. You cannot think about driving or being driven or read a book or watch TV etc. You can sometimes cure the repeat episodes, which I get about every 18 -24 months by the Epley Manoeuvre Epley maneuver - Wikipedia, the free encyclopedia. This sadly becomes less effective every time you use it, so you have to ration yourself. One of my houseful of physiotherapists monitors and helps me with the manoeuvre. Wilson Link to post Share on other sites More sharing options...
Jean Louchet Posted October 2, 2013 Share #23 Posted October 2, 2013 This is almost certainly linked with the delay between camera movements and the actual display of the image in the finder. There are important personal variations between people in eye motion and sensitivity to 'finder lag'. We have a similar issue with virtual reality stereo displays, where synchronisation is absolutely critical to visual comfort. Link to post Share on other sites More sharing options...
swamiji Posted October 2, 2013 Author Share #24 Posted October 2, 2013 This is almost certainly linked with the delay between camera movements and the actual display of the image in the finder. There are important personal variations between people in eye motion and sensitivity to 'finder lag'. We have a similar issue with virtual reality stereo displays, where synchronisation is absolutely critical to visual comfort. Your description matches my experience perfectly. Link to post Share on other sites More sharing options...
mjh Posted October 2, 2013 Share #25 Posted October 2, 2013 Yep, ‘motion sickness’ would be caused by the latency of live view. Neither the frame rate nor the resolution has anything to do with it as it is the camera causing it. As long as the latency won’t be reduced (and I don’t expect that it will), a higher-resolution EVF wouldn’t make a difference. Having said that, I didn’t have that problem with the EVF2. I can’t stand live view with sensor-based image stabilisation, though, as I get sick even without any discernible latency. Obviously this isn’t an issue with the M but with other cameras I configure the image stabiliser so it only kicks in for the actual exposure (it’s more effective in that mode anyway). Link to post Share on other sites More sharing options...
swamiji Posted October 3, 2013 Author Share #26 Posted October 3, 2013 Yep, ‘motion sickness’ would be caused by the latency of live view. Neither the frame rate nor the resolution has anything to do with it as it is the camera causing it. As long as the latency won’t be reduced (and I don’t expect that it will), a higher-resolution EVF wouldn’t make a difference. Well, I guess frame rate and Latency are a factor of the weakest link. You cannot exceed the limit of the sensor/processor/EVF. Whichever is the slowest, is the cap. I guess in this case it's the sensor??? Which means I will have to wait until the next version of the M and test again. Hopefully it will be better. Why do I still include Frame rate? Higher the frame rate, the smoother the image. While I agree that my problem might be primarily latency, the image did seem choppy and that did not help. Link to post Share on other sites More sharing options...
mjh Posted October 5, 2013 Share #27 Posted October 5, 2013 Advertisement (gone after registration) Why do I still include Frame rate? Higher the frame rate, the smoother the image. Sure enough, but with the latency being much higher than any delay due to the frame rate, increasing the frame rate would not help at all. And while I’m not sure whether the latency could be improved, it is quite certain that the frame rate cannot. Link to post Share on other sites More sharing options...
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