Eos 400d ( Rebel XTI )

eduperez

Josean0
With the permission of Sergei and eduperez.
I think that we should open a discussion on the order of menu options 400plus.
I have a particular version [DP Button] or [DP action] first.

Sorry for my bad English 😎.
Thanks.

I all ears on this... I am willing to implement whatever consensus is reached here; just one comment: I plan to change the way the DP button works, and soon the "DP Action" menu entry will be removed.

Speedy

What i just realized: When using EAEB + Handwavescript it is not possible to shoot with the shutter button.
I'd love to have both options of firing at the same time.
Is this somehow possible?

eduperez

ataru
a question... it is possible to turn off screen during script executing? it would be great to preserve power consumption, e.g. using intervalometer

Looks interesting, and probably can be done, but requires some investigation; I have added an issue: http://code.google.com/p/400plus/issues/detail?id=11.

eduperez

Speedy
What i just realized: When using EAEB + Handwavescript it is not possible to shoot with the shutter button.
I'd love to have both options of firing at the same time.
Is this somehow possible?

Sorry, but I do not understand under which situations can this be useful, or what do you expect from the camera... can you elaborate on that a bit more, please?

JoeNeptune

I am glad the forum is running again.
If I am reading right, you are trying to limit the hand wave feature by not allowing it to be left on anymore? Do you think you should where it has been so popular

Has there been any progress in making fine tuning of the shutter speeds available?
There is no reason a digital camera should have such limited options, its not like you have to add a new gear for each timing.
This would allow for much greater control of the look of motion in the photos.

Speedy

eduperez
Sorry, but I do not understand under which situations can this be useful, or what do you expect from the camera... can you elaborate on that a bit more, please?

Well, mostly i shoot on a tripod -> handwave is fantastic
Sometimes i shoot 9 Frames in a row e.g. of my 18 month old daughter
(EAEB is somehow used to increase the propability of a perfect shot;
because of the agility of her it is not possible to use a tripod and i'm in the need of using the viewfinder to shoot.
In this case using the handwave isn't my preffered way of shooting.
Of course i could turn the script off for these shots,
but this means to change more settings and this is a little annoying in my opinion.

In short words:
I'd love that the cam fires when i press the button OR i wave.

eduperez

JoeNeptune
I am glad the forum is running again.
If I am reading right, you are trying to limit the hand wave feature by not allowing it to be left on anymore? Do you think you should where it has been so popular

Yes, having that feature "always on" was wrong, IMHO: first, because it was confusing for the user (is it on? is it off? why did this damn camera just fired? ..?); and second because having a task running continuously (even if it sleeps at intervals) can affect the battery duration. In my version it must be started explicitly, before each shot, using the DP button. I can add an option to make it run endlessly (*), if that is useful.

JoeNeptune
Has there been any progress in making fine tuning of the shutter speeds available?
There is no reason a digital camera should have such limited options, its not like you have to add a new gear for each timing.
This would allow for much greater control of the look of motion in the photos.

Well, the parameter used by camera to specify the shutter speed "jumps" 3 bits per EV: that means that a precision of 1/8EV could be possible; or perhaps the camera expects the same notation that is used for EV compensation (my bet), and then only 1/2, 1/3 and 2/3 EV drifts are allowed. It should not cost a lot to make a couple of experiments; but frankly, I do not see the need: 1/3EV precision seems enough for me.

(*) "endlessly" is probably not a good idea, we must have a method to stop it, and the face detector is obviously not a viable option. I would prefer to use a button (DP if possible), but the camera jumps between modes while a script is running, and that method may not be reliable... just some random rambling, anyway.

eduperez

Speedy

eduperez
Sorry, but I do not understand under which situations can this be useful, or what do you expect from the camera... can you elaborate on that a bit more, please?

Well, mostly i shoot on a tripod -> handwave is fantastic
Sometimes i shoot 9 Frames in a row e.g. of my 18 month old daughter
(EAEB is somehow used to increase the propability of a perfect shot;
because of the agility of her it is not possible to use a tripod and i'm in the need of using the viewfinder to shoot.

I also have a daughter, and can feel your "pain" (18 months old children are quiet, believe me), but isn't EAEB a bit like playing the lottery? You may get a perfect shot, but the exposure can be completely off! You know you can set the Wave script to start the Interval script (with a timeout of 0s between shots, and a limited number of shots), don't you?

Speedy
In this case using the handwave isn't my preffered way of shooting.
Of course i could turn the script off for these shots,
but this means to change more settings and this is a little annoying in my opinion.

In short words:
I'd love that the cam fires when i press the button OR i wave.

Even if the camera is running the Wave script, you can still use the shutter button, to fire it normally; so you can wave your hand to make a round of shots, or use the shutter button to make one normal shot. If that is not enough, I can think of something else.

JoeNeptune

How can an option be wrong?
Particularly when its popular.

And as for shutter speed i am talking when the photographer sets it, not when its calculated.
Most particularly in Tv mode.
Jumps from 1/20s , 1/25s, 1/30s, to 1/40s.
These jumps are much to large and come from a time where cameras had mechanical limits.
If one could have greater control of this scale, pictures of moving objects could be made more dramatic and time lapse will look better too.
When you talk of EV's its more related to film speed than shutter speed.
Accurate control length of time between the two shutters would be a great asset to getting the perfect shot in sports photography to.

eduperez

JoeNeptune
How can an option be wrong?
Particularly when its popular.

No, I did not say the feature was wrong; I think the way it was implemented was wrong. Remember there is a Wave option in my version, and I have also offered a new option to make it run endlessly.

JoeNeptune
And as for shutter speed i am talking when the photographer sets it, not when its calculated.

Yes, I understood what you meant.

JoeNeptune
Most particularly in Tv mode.
Jumps from 1/20s , 1/25s, 1/30s, to 1/40s.
These jumps are much to large and come from a time where cameras had mechanical limits.
If one could have greater control of this scale, pictures of moving objects could be made more dramatic and time lapse will look better too.
When you talk of EV's its more related to film speed than shutter speed.
Accurate control length of time between the two shutters would be a great asset to getting the perfect shot in sports photography to.

I still do not find it useful; perhaps it us just me, or the use I give to my camera. But I try to be open for new ideas, and will give it a try as soon as I find the time, if nobody else does it before.

0xAF

eduperez

JoeNeptune
How can an option be wrong?
Particularly when its popular.

No, I did not say the feature was wrong; I think the way it was implemented was wrong. Remember there is a Wave option in my version, and I have also offered a new option to make it run endlessly.

@all,
I personally find it very annoying if the wave script is always on... The camera starts to shoot when I take a look through the view finder, sometimes even when I hold the camera close to my body it starts to shoot...
very annoying... I've started to use the wave option just after Eduardo implemented it in the new version.

@eduardo,
Perhaps your suggestion to have endless option will satisfy everyone.
One more thing: The wave option doesn't seems to work in [M]-BULB, which is normal I guess, but since you're familiar with the code, do you think it can be made working (though i'm not sure how one should stop the camera after it was started in bulb...) ? And do you believe it is possible to extend the max time of the camera from 30 sec to 60 (or 90) for example (this could eliminate the need of bulb, atleast for me) ?

I'm preparing for the spring's lightenings and this time I think I'm going to use the interval script, but i'll need more than 30 secs exposure. I even have a dead battery which will become a nice plug to the camera for an external adapter.

eduperez

0xAF
Perhaps your suggestion to have endless option will satisfy everyone.

It is already up in the SVN repository: there is a new option to the Wave script to make it loop endlessly; and all the scripts are stopped now using the DP button (hope it always works as expected), because I needed to be able to stop the script and the face sensor was no longer a viable option.

0xAF
One more thing: The wave option doesn't seems to work in [M]-BULB, which is normal I guess, but since you're familiar with the code, do you think it can be made working (though i'm not sure how one should stop the camera after it was started in bulb...) ? And do you believe it is possible to extend the max time of the camera from 30 sec to 60 (or 90) for example (this could eliminate the need of bulb, atleast for me) ?

I'm preparing for the spring's lightenings and this time I think I'm going to use the interval script, but i'll need more than 30 secs exposure.

We could try to use "out of range" values for the shutter speed, and see what happens, but I would not hold my breath. Other than that, I have no idea how to control the shutter; sorry.

0xAF
I even have a dead battery which will become a nice plug to the camera for an external adapter.

Looks like an interesting project, would love to hear about your results.

0xAF

eduperez
We could try to use "out of range" values for the shutter speed, and see what happens, but I would not hold my breath. Other than that, I have no idea how to control the shutter; sorry.

thanks for the hint, I could try it myself (unfortunately tomorow) and I'll post if it works.

eduperez

0xAF
I even have a dead battery which will become a nice plug to the camera for an external adapter.

Looks like an interesting project, would love to hear about your results.

I'll make some photos of it when it's ready. It should be pretty easy to do it - I just need to disembowel (or perhaps "draw" is the right word) the battery and soldier the cable from the DC (impulse) adapter to the pins of the battery. I'll post the results.

0xAF

just uploaded the Italian (http://code.google.com/p/400plus/wiki/UserGuideItalian) and the German (http://code.google.com/p/400plus/wiki/UserGuideGerman) translations of the UserGuide (http://code.google.com/p/400plus/wiki/UserGuide) to the Wiki of the project.

@ataru, @Speedy: please check them.

0xAF

@eduperez, @sergei:
guys may be it's a long shot but do you think it would be possible to add ISO bracketing ?
camera should make one shot, but save 3 or more files with different ISO value ?
AFAIK different ISO needs different currents on the sensor, which means that we will need access to internal routine for taking a shot, or perhaps direct access to the sensor. I'm not really sure we can handle this because we will need to implement our routine for making a shot - reading data from sensor, manipulate it (if it's needed) and save it to the CF.
I might be totally wrong here though.

guffster

eduperez
Hi guys.

Glad to know you liked the new version; and many thanks for the translations, I am sure they will be very useful.

Please let me remember you there is a page at http://code.google.com/p/400plus/issues/list where all your bug reports and feature requests are welcome. I will continue to use this thread for the announcements, and will obviously take note of any issued posted here, but having them all in a place would be very nice. Plus you will get an email as soon as yours gets fixed or done!

How does one enter a new "Feature Request" at the google 400plus site at http://code.google.com/p/400plus/issues/list? The only categories for new entries I see there are "Issues"... Or is a "Feature Request" just an "Issue"? I have a couple of ideas and would like to add a few.

eduperez

0xAF
just uploaded the Italian (http://code.google.com/p/400plus/wiki/UserGuideItalian) and the German (http://code.google.com/p/400plus/wiki/UserGuideGerman) translations of the UserGuide (http://code.google.com/p/400plus/wiki/UserGuide) to the Wiki of the project.

@ataru, @guffster: please check them.

@0xAF: Even if I do not speak Italian or German... thanks!

@ataru, @guffster: If you are willing to maintain those translation in the wiki yourselves, please send me a PM with your email and I will grant you access.

eduperez

0xAF
@eduperez, @sergei:
guys may be it's a long shot but do you think it would be possible to add ISO bracketing ?
camera should make one shot, but save 3 or more files with different ISO value ?
AFAIK different ISO needs different currents on the sensor, which means that we will need access to internal routine for taking a shot, or perhaps direct access to the sensor. I'm not really sure we can handle this because we will need to implement our routine for making a shot - reading data from sensor, manipulate it (if it's needed) and save it to the CF.
I might be totally wrong here though.

AFAIK, hardware ISO is implemented as a linear amplifier, sitting in the pipeline between the photosites and the digital-to-analog converter; as such, it can only be used once, because the photosites cannot store their analog value for a second readout.

Speedy

When you say guffster i suppose you meant Speedy?^^

0xAF

eduperez
AFAIK, hardware ISO is implemented as a linear amplifier, sitting in the pipeline between the photosites and the digital-to-analog converter; as such, it can only be used once, because the photosites cannot store their analog value for a second readout.

i thought so, then i was thinking if we can make the exposure 3 times longer for taking 3 different readings from the sensor ?

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