expanding exposure times on a590

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    Re: expanding exposure times on a590
    « Reply #30 on: 18 / January / 2017, 09:44:47 »
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    The main problem is that I can't really get out of it, once in.
    I added a way to exit.  When you are in <ALT> mode (i.e. adjusting shutter speed) press the MENU key.  That will stop the script and release the shutter speed override. 

    Quote
    If I hit the alt button, it says 'script paused' but insists on using the last shutter speed used while in the script
    Correct.  That's what it's supposed to do. See my previous comment about how to cleanly halt the script and release the override.
    Ported : A1200  SD940  G10  Powershot N  G16*

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    Re: expanding exposure times on a590
    « Reply #31 on: 18 / January / 2017, 10:02:14 »
    Beautiful!! It works like a charm. Menu then alt, and I'm back in business.
    One other thing. (I hope I'm not looking a gift horse in the mouth here.)
    Would it be possible to put a fast scan option in? It takes a lot of button pushing to go from one end of the speed range to the other. Something like, holding the button down causes an automatic scan?
    Thanks again,
    .... john

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    Re: expanding exposure times on a590
    « Reply #32 on: 18 / January / 2017, 10:04:27 »
    Would it be possible to put a fast scan option in? It takes a lot of button pushing to go from one end of the speed range to the other. Something like, holding the button down causes an automatic scan?
    I'll take a look.

    Meanwhile, I suppose i can make one more change to release the shutter override when you press the <ALT> button and reassert it when you press <ALT> again. I think i now understand your use case.
    Ported : A1200  SD940  G10  Powershot N  G16*

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    Re: expanding exposure times on a590
    « Reply #33 on: 18 / January / 2017, 10:15:04 »
    Thanks again,
       And ......... would it be possible to be able turn the flash off and on while in the script. If not, I can go out of the script, turn the flash on, the go back in. (In normal mode the flash settings are accessed by a switch.)
    ... john


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    Re: expanding exposure times on a590
    « Reply #34 on: 18 / January / 2017, 21:21:14 »
    Thanks again,
       And ......... would it be possible to be able turn the flash off and on while in the script. If not, I can go out of the script, turn the flash on, the go back in. (In normal mode the flash settings are accessed by a switch.)
    ... john
    As we creep closer & closer to CHDKplus.lua, tonight's changes are :
    • Click the left/right buttons to change Tv by one value. Hold them down to scroll through.
    • Tv override only active when you shoot in <ALT> mode.  Normal shooting happens when you press the ALT key and pause the script.
    • Press the Func/Set key to manual toggle the flash off / on

    Note that on my G10, toggling the flash only updates the Canon OSD flash indicator when you "half press".

    I guess all that is left is ND filter control and the ability to set an f-stop and ISO and this just became a "full manual control" script?
    Ported : A1200  SD940  G10  Powershot N  G16*

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    Re: expanding exposure times on a590
    « Reply #35 on: 19 / January / 2017, 09:28:48 »
    Hi Waterwingz,
           It's perfect! I couldn't ask for any more.
    Thank-you very much.
    .... john
    P.S. I don't think my camera has an ND filter. I believe it is one of the last that Canon made with a true iris.

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    Re: expanding exposure times on a590
    « Reply #36 on: 19 / January / 2017, 09:32:23 »
    P.S. I don't think my camera has an ND filter. I believe it is one of the last that Canon made with a true iris.
    It may have been one of the last of the A series with a true Iris but all the G, S, and SX cameras that followed have one.  And an ND filter as well.
    Ported : A1200  SD940  G10  Powershot N  G16*

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    Re: expanding exposure times on a590
    « Reply #37 on: 19 / January / 2017, 15:55:51 »
    Oh, well, that's interesting. So, they have both?
    Is it variable, or equivalent to a certain number of stops?
    ..... john


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    Re: expanding exposure times on a590
    « Reply #38 on: 19 / January / 2017, 16:57:31 »
    Is it variable, or equivalent to a certain number of stops?
    Typically 3 stops.
    Ported : A1200  SD940  G10  Powershot N  G16*

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    Re: expanding exposure times on a590
    « Reply #39 on: 19 / January / 2017, 17:35:05 »
    I'm not sure that there is an ND filter in the A590. My A720 (similar with the A590) has no ND filter. Cameras from this time had either a true iris or an ND filter. Both thing together came with the SX2xx class, but without menu function like in the G and S series.

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