Re: [gphoto-devel] D5100 exposure time and help needed for Canon/Nikon common white balance interface

[Popolon <po...@po...>]

Do you mean it's in 10.000th of seconds or that it should be 10.000 ms 
for 10 sec ?


Didn't find the exptime config paramter :

# gphoto2 --list-config | grep exp
/main/capturesettings/expprogram
/main/capturesettings/longexpnr
/main/capturesettings/exposurecompensation
/main/capturesettings/exposuremetermode
/main/capturesettings/flashexposurecompensation

The values I found, was with summary, not by --get-config /main/other/500d

This one strangly return raw values in this case:
Label: Exposure Time 

Type: MENU
Current: 3333
Choice: 0 2
Choice: 1 3
Choice: 2 4
Choice: 3 5
Choice: 4 6
Choice: 5 8
Choice: 6 10
Choice: 7 12


Le 30/08/2011 23:36, Marcus Meissner a écrit :
> On Tue, Aug 30, 2011 at 11:12:31PM +0200, Popolon wrote:
>> === D5100 Exposure Time ===
>> Labe: Exposure Time
>> 0x500d:(readwrite) (type=0x6)
>> Enumeration
>> [2,3,4,5,6,8,10,12,15,20,25,31,40,50,62,80,100,125,166,200,250,333,400,500,666,769,1000,1250,1666,2000,2500,3333,4000,5000,6250,7692,10000,13000,16000,20000,25000,30000,40000,50000,60000,80000,100000,130000,150000,200000,250000,300000]
>>
>> There is actually an error, the values displayed are 10 times faster.
>
> Actually they are in 10.000 milliseconds, as defined by the standard.
>
> --get-config exptime
> should get it right.
>
>> value: 1 sec (100000) means in fact 10 sec
>> value: 0,01 sec (1000) means in fact 1/10 = 0.1 sec
>> ...
>> value: 8e-05 sec (8) means in fact 1/1250 = 0.0008 ) 8e-04
>> value: 4e-05 sec (4) means in fact 1/2500 = 0.0004
>>
>> And this two values are approximation in Nikon camera display or
>> erroneous in values :
>> value: 2e-05 sec (2) is displayad as 1/4000 = 0.00025
>> value: 3e-05 sec (3) is displayad as 1/3200 = 0.0003125
>
> This is kind of messy then. We trust the returned enumeration :/
>
> Ciao, Marcus