SDM 1.83 Release

[hwntw]

Hello, I am trying to set my Canon G9 for snap-shooting, with focus and aperture pre-set, to avoid focusing delays. I have enabled Focus Over-ride in SDM 1.83 and set the focus to HYP. On using the camera in AP mode the SDM OSD shows the zoom setting (eg 35mm EFL) and the SD= HYP. The two further values displayed are F and N (far and near?). The SDM over-ride menu has variable values for these.
My point is: if the focus is being set at the hyperfocal distance (with given zoom length and aperture) why do the F and N values not vary accordingly (automatically)? I have battled with the G9 pre-sets to get this working, without SDM, I thought that SDM HYP focus over-ride would achieve it at a stroke, but no- shots are all out of focus, whereas my use of the in-built pre-sets gives results as expected. This is nearly, but not quite, a brilliant feature in SDM.
What else shd I do to get HYP focus to work properly?

[Microfunguy]

My A620 has to be in manual-focusing mode for focus-override to work, but I think your G9 can be in any mode.

Anyway, first of all, try it with manual-focusing enabled.

[hwntw]

Thanks, MFG.

Anyway, first of all, try it with manual-focusing enabled

It works much better in MF mode. Optimally, I wd like to use focus HYP in AP mode.
Great work, BTW.

Hwntw

[Microfunguy]

So, as far as you can tell, are you saying it works in manual-focus mode but not other modes ?

Aperture-priority should be irrelevant if focus is set to manual.

I would be interested to know if focusing at HYP really does make a difference.

The reason I say that, is because beyond a number of metres the slightest movement of the focusing stepper motor will greatly increase the distance of the focus point.

Try setting that sort of distance manually, it will suddenly jump to infinity.

[hwntw]

Yes, works in MF mode, AND in other modes, including AUTO (G9)

[hwntw]

May I suggest a small change to SDM, concerning the zebra display?
Zebra shows as a single red colour, for both over- and under-exposure.
In CHDK I have set these as different colours, using a dull yellow for under-exposure. Can I change this somewhere in the SDM source code and recompile?

[Microfunguy]

Zebra shows as a single red colour, for both over- and under-exposure.

I was not aware of that, I will check it out.
I am busy with other tasks but will post link to a test build here when available.

Which firmware version is your G9 ?

[hwntw]

Hello MFG,
My G9 build is d.

[Microfunguy]

Here you are, try this  :-

http://www.zshare.net/download/77577886e1446d81/

Incidentally, display of near and far distance values is not related to hyperfocal .. it is for the rangefinder feature.

[hwntw]

Ah, yes- how does the rangefinder feature work? Is it a script?
TVM for the build, spot on. I have red for over- and yellow for under-exposure.

[Microfunguy]

I will tell you after I have finished painting the ceiling  

[Microfunguy]

Try following these instructions and see if it works OK  :-

http://stereo.jpn.org/eng/sdm/single.htm

[hwntw]

TVM for the build, spot on. I have red for over- and yellow for under-exposure.

Hello again, I have switched to firmware version 100-i for my G9. Is there a chance of you copying me a build of SDM 1.84 for the corresponding firmware, 100-i, as before?