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Scott, 

I learnt to my cost how much using navigation on an iPhone can cost when you are data roaming. We had hired a car at Baltimore-Washington Airport, which in the rental company's usual cheeseparing fashion, had no navigation. We took one turn off too early from i295 for our hotel in central Washington DC at Logan Circle. No problem I thought; i just fired up Google maps on my UK iPhone (this was before the days of Apple Maps), handed it to my wife to give me turn by turn directions to our hotel and it worked just as one might hope and took us straight to the hotel. I was horrified when I got back to the UK to find that this 30 minute use of GPS and Google Maps had cost me £70 in data charges. 

Wilson

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14 hours ago, audiophileguy said:

I was very excited to read about the new M body and ready to order, but as I now understand it does not have the EVF, it comes off of my list.  I have come to really appreciate using the EVF on my M240 with my 24mm and 15mm lenses, which are among the most used in my lens bag.  Without the EVF, the new body is not really helpful...

It would be helpful if anybody can explain why Leica would want to add a much higher resolution sensor and then take away this very important feature, which has become an important and very useful part of the last two generations of bodies.  It is really frustrating...

Except that they haven't. It takes exactly the same EVF as the M10, M10P, and M10M. Where did you read this?

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I am keen to understand the effect of slight camera shakes on a large MP rangefinder in low light with no IBIS. I have often taken handheld photos at 1/15th and 1/30th sec in low light with my M9-P. How would the M10-R compare with the M10 in such a scenario?

Edited by rramesh
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On 7/22/2020 at 5:03 AM, scott kirkpatrick said:

Wilson, how phones get their localization information is a dark mystery.  I run an aviation app on several iPads with are enabled for cellular communications but do not have any SIM installed.  They always know where they are and exhibit the 10 m or less uncertainty that you want to see.  I've compared the GPS sensitivity on the VF020, the SL and a phone that I use only out of the country.  The VF020 is pretty weak if there is any obstruction or on a day when there aren't many satellites in view (you can check this with a hiker's GPS).  The SL is better, but any phone seems to do better than either.  Turning off data on your phone may be too drastic a control. when you travel  Just pull out the SIM and put it in a safe place.  Google Maps won't work, but that is because the maps don't download, not the location.

It’s not a dark mystery. 
It doesn’t only use gps. 
Pulling the SIM card worth let you use the phone.

They are more accurate due to using several technologies.

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worth?

If your spell-checker kept you from saying "won't" that's wrong.  The phone company has to respond to 911 calls so for that and other reasons, it wants to know where you are even if you don't have a SIM.  So location services work without a SIM.  But you won't be able to use an app with mapping and graphics that are downloaded.

Edited by scott kirkpatrick
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6 hours ago, scott kirkpatrick said:

worth?

If your spell-checker kept you from saying "won't" that's wrong.  The phone company has to respond to 911 calls so for that and other reasons, it wants to know where you are even if you don't have a SIM.  So location services work without a SIM.  But you won't be able to use an app with mapping and graphics that are downloaded.

So without a SIM or with data disabled, the phone knows you are there. Unfortunately it won't tell you where "there" is. 

I just timed the Visoflex 020's satellite acquisition time on the M10-R. It took a little over 2½ minutes, which is about the same as the SL1 and certainly considerably quicker than the M240 Multi-function grip, which could take over 5 minutes. 

Wilson

Edited by wlaidlaw
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2 hours ago, scott kirkpatrick said:

worth?

If your spell-checker kept you from saying "won't" that's wrong.  The phone company has to respond to 911 calls so for that and other reasons, it wants to know where you are even if you don't have a SIM.  So location services work without a SIM.  But you won't be able to use an app with mapping and graphics that are downloaded.

That’s right. Nor will you be able to make or receive a call. The location is still broadcast but the accuracy goes from +/- nine feet to 180 feet if stationary.

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Well, I don't know where you get the 180 feet from.  I get 5-10 m accuracy without a SIM.  It is in the operating system, and if you have an app (like FOTOS) that can use your LOC field, it is available to you.  You just can't supplement it by downloading additional data, and since you aren't connected for discretionary phone calls, you can't get expensive relays from your home account.

The only way to make a fair measurement of the sensitivity of a gps is with a better GPS to tell you how many satellites are in view and with what strength.  This changes a lot.  I use a ten-year old Garmin 60CSx 12-channel hiker unit, which has a display of all that information.  Lousy maps, because it is so old, but quite enough to analyze the signal quality that is available.

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6 hours ago, rramesh said:

I am keen to understand the effect of slight camera shakes on a large MP rangefinder in low light with no IBIS. I have often taken handheld photos at 1/15th and 1/30th sec in low light with my M9-P. How would the M10-R compare with the M10 in such a scenario?

I you are comparing same resolution output of M10 and M10-R (e.g., same print size, or export JPEG), then there is no difference. There can be a difference when looking on screen at 100%, with high resolution needing faster shutter speed. 

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