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Olympus OM-D E-M1 Mark II The second Micro Four Thirds camera that offers phase detect focusing so you can use Four Thirds DSLR lenses normally as well a Micro Four Thirds lenses.

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  #31  
Old 16th June 2019
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Re: Noise issues

Very glad that’s sorted, Paul.

Interesting point about having a laptop & cable when travelling - I’ve always travelled extremely light before, often with an iPhone as my only ‘device’, but being able to do a factory reset and reload of settings is a useful advantage if you were in the sticks for a week or two, and being able to review images on a large screen is very useful sometimes.

Amazon are currently selling titchy refurbished Lenovo 12” SSD laptops with Windows 10 Pro for around £200.

These clever little computer-cameras do throw some weird brain farts sometimes. Using the focus point track pad on the flipped-out screen, every now and again I find the pad switches to what I call ‘TLR mode’.
In other words, dragging your finger to top right moves the focus to bottom left. Only cured by a battery-out reset. I’ve had this happen on both my M1ii bodies, fortunately only rarely. Weird.
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Panasonic GM5, 12-32, 12-35, 15. Laowa 7.5.
Assorted legacy lenses, plus a Fuji X70 & a Sony A7S.
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  #32  
Old 17th June 2019
Ricoh Ricoh is offline
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Re: Noise issues

Quote:
Originally Posted by drmarkf View Post
These clever little computer-cameras do throw some weird brain farts sometimes. Using the focus point track pad on the flipped-out screen, every now and again I find the pad switches to what I call ‘TLR mode’.
In other words, dragging your finger to top right moves the focus to bottom left. Only cured by a battery-out reset. I’ve had this happen on both my M1ii bodies, fortunately only rarely. Weird.
Boing 737 Max 8 has a similar problem. #I_love_safety_critical_software
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  #33  
Old 17th June 2019
throt throt is offline
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Re: Noise issues

I remember than back when the first E-M10 came out one of the review had similar issues - they expected nice pics but viewing from camera screen the quality was dissapointing... until they loaded the pics to the comp
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  #34  
Old 17th June 2019
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Re: Noise issues

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Boing 737 Max 8 has a similar problem. #I_love_safety_critical_software
Love it.
Seriously, didn't the pilot of one of the very early mach 1 exceeding aircraft discover the 'up' and 'down' responses of the stick were reversed around that speed? As I recall, 'left' and 'right' stayed the same, so it's not a perfect parallel.
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------------------------------
http://www.microcontrast.com
Too much Oly gear.
Panasonic GM5, 12-32, 12-35, 15. Laowa 7.5.
Assorted legacy lenses, plus a Fuji X70 & a Sony A7S.
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  #35  
Old 17th June 2019
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Re: Noise issues

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Love it.
Seriously, didn't the pilot of one of the very early mach 1 exceeding aircraft discover the 'up' and 'down' responses of the stick were reversed around that speed? As I recall, 'left' and 'right' stayed the same, so it's not a perfect parallel.
This makes an interesting read if you haven't already. https://www.bbc.co.uk/news/extra/sd9...tle_over_blame

I would like to see the fault tree analysis on the MCAS design. One sensor to determine pitch is not fault tolerant. I think I read recently that Boeng offered the two sensor upgrade, but at an additional cost. WTF!!

Yes I believe early supersonic flight had its problems. With certainty they would have mathematically modelled based on fluid dynamics, but didn't predict the transonic zone and its effects. When I started out we used analogue electronics to help with modelling.
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  #36  
Old 17th June 2019
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Re: Noise issues

I was under the impression that safety-critical systems had to be implemented in triplicate and the final decision made on a "best of three" principle?
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  #37  
Old 17th June 2019
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Re: Noise issues

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I was under the impression that safety-critical systems had to be implemented in triplicate and the final decision made on a "best of three" principle?
Yeah, but what happens if all 3 are wrong?
(On reflection, that does give you a chance of getting it right - better than if 2/3 are wrong in the same way!)
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Too much Oly gear.
Panasonic GM5, 12-32, 12-35, 15. Laowa 7.5.
Assorted legacy lenses, plus a Fuji X70 & a Sony A7S.
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Old 17th June 2019
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Re: Noise issues

You're gonna crash ...
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Old 17th June 2019
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Re: Noise issues

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I was under the impression that safety-critical systems had to be implemented in triplicate and the final decision made on a "best of three" principle?
All depends on the SIL rating.
As an example 'fly by wire' a/c, eg Airbus xxx, have 5 computers (4 computers supervised and arbitrated by the 5th) each using different technology, different topology and designed by different, independent design teams.

Many errors occur due to poor specification, long before the design teams get their hands on the hardware / software.
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Old 17th June 2019
Jim Ford Jim Ford is offline
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Re: Noise issues

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Originally Posted by Ricoh View Post
When I started out we used analogue electronics to help with modelling.
I should imagine that it was faster than even the latest digital systems.

Jim
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  #41  
Old 17th June 2019
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Re: Noise issues

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I should imagine that it was faster than even the latest digital systems.

Jim
Integration, depending on the time constants, could take some time.
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