Le 17 avr. 2015 à 14:21, Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx> a écrit :
> The 12-50 is normally a lesser used lens. I think I had used it once in
> manual zoom mode and forgotten about it. I'm not sure why since I don't like
> that power zoom. I have it set to manual zoom now and will leave it there.
> I've also turned "reset lens" to off.
>
> As to the loss of the display on the screen (except review of the image just
> shot) that's still a mystery. I thought you had discovered the reason with:
> "Not sure, but not unlikely, that a dangling strap, coat, stray hand, etc.
> set off the EVF Auto Switch to the EVF."
> However, trying this out doesn't completely fit the observations. When this
> was happening the screen was completely blank. It's possible to get a
> completely blank screen but it requires both that the EVF switch has turned
> off the image display AND the info button setting has turned off all info
> displays. While less likely that both things were set that way it was still
> possible. In fact, I first thought likely. When I started the shooting
> sequence I was using the histogram to set the exposure. Near the end of the
> sequence I remember being bothered by the histogram blocking my view and
> turned it off. That last step actually turns off all info displays. A
> perfect setup for losing the image if I accidentally hit the EVF button. I
> think that was possibly more likely since I was shooting vertical with
> buttons in unfamiliar locations.
>
> However, the final step doesn't fit the scenario since this image/info
> setting is retained after power off/on. In the case I was describing, the
> image returned after power off/on. I don't recall whether any shooting info
> was also displayed.
> But I suppose I could also hit the EVF button while fumbling with the power
> switch (I was using the E-M1)
>
Been there and done that too. And that's why I regularly shave my eyebrows
these days ....
Hope this helps
;-)
Amities
Philippe
> Thanks for your feedback. I'll just have to do some shooting tests with the
> camera and see if I can make the problem recur. If not I'll chalk it all up
> to user error even though I can't quite explain it.
>
> Chuck Norcutt
>
>
> On 4/17/2015 12:28 AM, Moose wrote:
>> This strikes me as mostly operator misunderstanding/error.
>>
>> If, as I always do, you use the 12-50 lens in manual zoom Mode, rather
>> than electronic zoom, powering off and on doesn't change the zoom
>> setting. Yes, I just tried it to confirm my experience. Even if you used
>> the power zoom to set up, if you had had pulled it back in to Manual
>> Zoom Mode before shooting, the zoom setting would not have changed. I
>> wish there were a way to just disable the Auto option.
>>
>> Whether the lens maintains focus is a Menu option.
>>
>> Custom Menu A: "Reset Lens - When set to [On], this resets the focus of
>> the lens (infinity) each time the power is turned off."
>>
>> Had you had that turned off, you would still have been focused as set
>> before. The Mark II manual goes further, saying that Power Zoom lens FL
>> will also be reset. Whether this is further explication or an added
>> function of the Mark II, I don't know. But it's simpler, and surer, to
>> put it in Manual Zoom Mode.
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