Jonas B
Forum Pro
Thank you. Your measured result is what one can expect. Also if "ballpark estimates" only I see no reason to further investigate this.Anders W wrote:
You mean you don't use the high refresh because of the problems with the LV "blinkies"?Jonas B wrote:
Hmm. Now "we" don't use high refresh because of the known problems with the "blinkies" - so this reminds me about your lag test. Did you perform the same test with the camera set to normal refresh rate?Anders W wrote:
With the E-M5 EVF set to high refresh, the EVF lag is now down to 30 ms. I am sure this value will continue to shrink in future bodies, especially in decent light. A DSLR must by definition always have a mirror lag when its OVF is used. It would be interesting to know how long that lag is relative to the EVF lag figures we are by now talking about.Vittorio Fracassi wrote:
And an EVF is an EVF no matter how quickly it refreshes, there's always a bit of guessing going on in the photographer's mind.
Well, I also have my refresh set to normal for the most part, but I wouldn't hesitate to switch to fast if circumstances called for it. After all, there are solutions to the problem you mention.
Yes, I did test the lag time with the E-M5 set to normal refresh as well as the lag time on my old G1. In both cases, I found the lag to be roughly twice that of the E-M5 at high refresh, i.e., on the order of 60 rather than 30 ms. I should emphasize here that these are ballpark estimates. For more precise ones, I would have needed to take a much larger sample than I did or have better equipment at my disposal. If you have access to a 240 fps video camera, for example, you can get more precise estimates with much less work.
Heh. Re-reading my own message made me confused. I think I tried to say I feel more connected to the target in the time domain when using a Nex-5N than when using my E-M5. This is what I perceive. I don't know if it possible to measure objectively.Not sure what you mean here? Are you saying the NEX 5N had more or less EVF lag than the E-M5?The majority of my images don't demand high refresh rates and the normal refresh rate doesn't exactly make me suffer. I do however feel a difference between the Nex-5N (and I would guess the Nex-7 and the Sony A99) when it comes to feel connected in time with the target. That may be the shutter lag or the EVF, I don't know for sure. The E-M5 is however the best µ4/3 camera I've owned in this regard.
I don't know what EVF lag the Sony cameras have. What I feel is they have a shorter shutter lag. I don't know the numbers. What I noticed is that I could take an image of a car at a certain point and when reviewing the image the car was at the position I saw it was in the viewfinder (relative to the white lines in the street). I also took images of people walking trying to capture their foremost (first?) foot the moment before it hit the ground. The majority of the images came out very good. I loved that responsiveness and it was achieved with the electronic first curtain. Great stuff.
The E-M5 isn't far behind the Sony cameras but easy enough to notice.
Nothing more, nothing less.For my kind of shooting, I too prefer a good EVF (like the one on the E-M5) to an OVF. Obviously, both have pros and cons whose importance will depend on the situation. So this purports to be nothing more than a summary of how I weigh those based on my own personal requirements.I'm sure EVF will continue to improve and at some point not even complainers like me will have anything to object. For certain reasons I prefer an EVF over optical ones and I have advocated Live View technology since the Olympus E-330 and then the E-510 (if I recall the numbers correctly).
regards,
Jonas