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Re: converting raw images f...

Eric Stevens
SubjectRe: converting raw images from Canon EOS 600D
FromEric Stevens
Date12/09/2013 00:11 (12/09/2013 12:11)
Message-ID<onr9a9902mpfhace06smbvmfj6470ath47@4ax.com>
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Newsgroupsrec.photo.digital
FollowsSavageduck
FollowupsSavageduck (55m) > Eric Stevens

On Sun, 8 Dec 2013 04:37:13 -0800, Savageduck <savageduck1@{REMOVESPAM}me.com>wrote:

Savageduck
On 2013-12-08 07:53:50 +0000, Eric Stevens <eric.stevens@sum.co.nz>said:

Eric Stevens
On Sat, 7 Dec 2013 20:56:59 -0800, Savageduck <savageduck1@{REMOVESPAM}me.com>wrote:

Savageduck
On 2013-12-08 04:14:06 +0000, Eric Stevens <eric.stevens@sum.co.nz>said:

Eric Stevens
On Sat, 7 Dec 2013 19:26:49 -0800, Savageduck <savageduck1@{REMOVESPAM}me.com>wrote:

Savageduck
On 2013-12-08 03:10:07 +0000, Eric Stevens <eric.stevens@sum.co.nz>said:

Eric Stevens
On Sat, 7 Dec 2013 15:25:17 -0800, Savageduck <savageduck1@{REMOVESPAM}me.com>wrote:

Savageduck
On 2013-12-07 22:27:16 +0000, Eric Stevens <eric.stevens@sum.co.nz>said:

Eric Stevens
On Fri, 06 Dec 2013 23:20:25 -0500, nospam <nospam@nospam.invalid> wrote:

nospam
In article <p275a99v4udgmd18f98gq3pik2g95bgrmj@4ax.com>, Tony Cooper <tonycooper214@gmail.com>wrote:

understanding how the car handles is not the same as being a mechanic.

That's your definition. Who is it then that adjusts wheel alignment settings, suspension settings, wings, tire pressure adjustment etc ..

mechanics.

Tony Cooper
Actually, the pit crew is a team of specialists. Generally, when we use the word "mechanic", we are referring to a person who works on or repairs the drive train of a vehicle...engine and transmission. The pit crew people specialize in adjustments to the vehicle, fueling, and tire changing. While they probably have some mechanical skills, the real "mechanics" are back in the garage. I doubt if any race driver refers to his pit crew as his "mechanics".

nospam
unimportant distinction.

the point is that it's not the driver who does it.

Eric Stevens
It's usually the driver who decides it.

Savageduck
Perhaps in days past, and perhaps in races other than F1, F2, IndyCar, GT1, & GT3.

Today in F1 the car is a mass of telemetry sending data from hundreds of sensors to the pits where a team of engineers sitting in front of a wall of monitors evaluate what needs adjustment and what need to be adjusted in the car by the driver and passes on to the pit crew and those "mechanics" what they need to prepare to fix or adjust on a pit stop. It is those engineers who tell the driver what they need him to adjust in the car on that complex steering wheel. Those sensors tell them stuff such as the pressure in the push-rod suspension on each of the corners, with that they can make balance adjustments to wings, suspension etc. They get feedback on brake temperatures, exhaust temperatures, fuel flow, KERS charge, KERS discharge, and so much more.

Eric Stevens
That's all trimming of what is already there. What is there and how it is set has been decided by previous testing and driver input. The car which races at Monaco is not the same as the car which races at Monza.

Savageduck
No kidding!

Eric Stevens
And why should that be?

Savageduck
Are you sure you follow F1?

The cars are usually the same car but with different set up, for the different tracks. Monaco being a relatively slow street circuit and Monza one of the fastest tracks in F1.

Eric Stevens
Maybe the same shell.

Savageduck
Rules don't provide for any body or chassis change.

Eric Stevens
Possibly not the same engine characteristics (though I don't know the current regs),

Savageduck
Engine mapping is track specific and only a narrow range of cockpit adjustments are available after qualifying.

That was my point.

You race with the engine map you qualify with. < http://www.formula1.com/inside_f1/rules_and_regulations/technical_regulations/8699/fia.html

< http://www1.skysports.com/f1/news/22058/7929865/ > < http://en.wikipedia.org/wiki/Formula_One_engines >

Eric Stevens
suspension settings will be different,

Savageduck
Always, with major tweaks through the three practice sessions and qualifying rounds.

Based on input and requests from the driver.

Eric Stevens
so too will be gear ratios,

Savageduck
Not necessarily

Certainly the final drive ratio will be different. Top speed at Monaco is about 177 mph and at Monza it is about 210 mph. See http://www.gpupdate.net/en/f1-news/299971/monza-speed-trap-topped-by-ricciardo/ http://www.vivaf1.com/monaco.php

< http://www.formula1.com/inside_f1/rules_and_regulations/sporting_regulations/8689/

Hmm. They can change gear ratios but they can't change gearboxes. Sounds somewhat Byzantine.

< http://www.formula1.com/inside_f1/rules_and_regulations/technical_regulations/8710/fia.html

So in any one race the driver is able to use a maximum of 7 gear ratios selected from a total of 30. Presumably these have to be installed under the supervision of an official.

Eric Stevens
the aerodynamics will be at opposite ends of the spectrum,

Savageduck
They will be adjusted within a narrow range permitted by regs.

Eric Stevens
tires will be different,

Savageduck
Not necessarily, again check the regs. < http://www.formula1.com/inside_f1/understanding_the_sport/5283.html >

"The rubber compounds used at each race are determined by the tyre supplier (currently Pirelli) according to the known characteristics of the track."

In other words, the tire manufacturer provides tires to suit the track. Different tracks - different tires.

< http://www.formula1.com/inside_f1/rules_and_regulations/sporting_regulations/8680/fia.html

Eric Stevens
steering will (probably) be different: otherwise the cars are identical.

Savageduck
As always read the regs. < http://www.formula1.com/inside_f1/rules_and_regulations/technical_regulations/8708/

I was particularly thinking of the power steering.

Monaco has slower speeds, fewer passing opportunities, very tight corners, and a bigger elevation changes than found at some of the new circuits. Monza has high corner approach speeds (as high as 210 MPH) and short braking areas putting heavy loads on brakes. The wing settings at Monza are usually set at minimal angles to reduce drag on the high speed stretches. Lap speed record at Monza is 162 MPH. Contrast that with Monaco where the record on the current circuit configuration is 113.3 MPH. Two very different tracks, two very different set ups.

Eric Stevens
Exactly. So the mechanics cannot (as per nospam) setup the car without major input from a knowledgeable driver.

--

Regards,

Eric Stevens