[Digikam-users] Advanced search - How to find one aperture only

[Marie-Noëlle Augendre]

Interesting information, I was not aware of all of this as it is the first
time I use this kind of parameters in the advanced search.

And why any edit check in this kind of fields, by the way? It'll be more
convenient (and easy for the developers I guess) to let the user enter
whatever values he/she wants. At worst, there will be no result!

Marie-Noëlle


2012/11/6 Jean-François Rabasse <jean-francois.rabasse at wanadoo.fr>

>
> On Tue, 6 Nov 2012, Marie-Noëlle Augendre wrote:
>
>  Good trick! Thank you Jean-François.
>>
>> I had the impression Digikam only knew the "real" values as it goes from
>> f/8 to f/11 and such when I used the '+' and '-' keys; it probably
>> automatically proposes the values that are available in the pictures
>> recorded in its database.
>>
>
> Well, not exactly. The field editor logic, when using the '+' or '-' keys
> or the spin buttons, loops on the standard values serie, 4, 5.6,
> 8, 11, 16, 22, etc.
> This uses plus or minus 1 EV increments. Perhaps plus or minus 1/3 EV
> should be more suitable and more close to cameras settings.
> (The ISO sensitivity field uses +- 1/3 EV, e.g. 800, 1000, 1250, 1600,
> and not just 800, 1600.)
>
> But all this is just typing help and as long as it's possible to input
> user typed values, things are Ok.
>
> From my point of view, what is a real restriction is that input is locked
> into a predefined range of values.
> For aperture setting, the max value is f/128.0 and this is probably
> ok for most lenses.
> But the ISO setting field limits to 6400, and the exposure time field
> limits to 1/1000s. With somewhat strange behaviour, if you try to
> input 1/2000s, the editing corrects into 1/2s :-(
>
> Maybe this should go on a wish list, as with modern cameras, values
> of ISO 12800, or 1/2000s shutter speed are possible and there seems
> to be no way to do searches for such values.
> And a wish list should also consider what you mentionned, i.e. the
> possibility of setting the same value as mini and maxi.
>
> Regards,
> Jean-François
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>


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