Landscape Focus Bracketing Script - page 21 - Completed and Working Scripts - CHDK Forum supplierdeeply
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Landscape Focus Bracketing Script

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Offline pigeonhill

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Re: Landscape Focus Bracketing Script
« Reply #200 on: 01 / July / 2021, 16:57:03 »
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Just an update, with a test image, to reflect the latest histogram 'fixes' by @reyalp.

But note check to see you have the correct build  ;)

https://photography.grayheron.net/2021/07/auto-ettr-on-m3.html
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Offline SX720

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Re: Landscape Focus Bracketing Script
« Reply #201 on: 04 / July / 2021, 20:31:55 »
I just tried the script and it seems to work well on my SX230 HS. The only thing is when zoomed out and close to infinity you don't get a lot of granularity in the focus point so the script reports different distances but they end up at what I think is the same focus. I don't think this is the fault of the script but rather something maybe with the camera.

When zoomed in more and looking at closer objects it works well.

I'm not sure if there is any way to make finder focus adjustments for the SX230 HS, it might be just the way the camera is. With that said it would be cool if possible. Sometimes I think the images from the camera can be a little soft and I'd assume if it were possible to make slight focus adjustments I could end up with a merged sharper picture.
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Offline pigeonhill

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Re: Landscape Focus Bracketing Script
« Reply #202 on: 05 / July / 2021, 02:11:30 »
@SX720

Thanks for the feedback on the script.

I'm afraid you are experiencing the limitations that exist on the Canon side.

Canon's reporting of distance varies through the focus range, with the greatest granularity at the macro end.

This becomes more apparent in the far field at longer focal lengths.

This is why I recommend the script is best suited as a script for wide angle lenses and for focus control/reporting up to the hyperfocal.

Focusing beyond the hyperfocal is really all about setting the infinity blur. For example, focus at 2*H and the infinity blur is half the CoC etc.

BTW you may wish to play around with my focus simulators on my blog at photography.grayheron.net. These are designed to help you visualize focusing and focus bracketing.
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Offline pigeonhill

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Re: Landscape Focus Bracketing Script
« Reply #203 on: 08 / July / 2021, 08:01:08 »
I thought some may be interested in my latest M3 post, that shows the 'exposure survey' mode:

https://photography.grayheron.net/2021/07/m3-bracketing-exposure-survey-mode.html
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Offline pigeonhill

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Re: Landscape Focus Bracketing Script
« Reply #204 on: 31 / July / 2021, 09:05:10 »
I thought some may be interested in my latest M3 Landscape Bracketing Script tweaks:

https://photography.grayheron.net/2021/07/m3-landscape-bracketing-script-latest.html
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Offline pigeonhill

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Re: Landscape Focus Bracketing Script
« Reply #205 on: 01 / August / 2021, 09:47:11 »
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Offline pigeonhill

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Re: Landscape Focus Bracketing Script
« Reply #206 on: 06 / August / 2021, 06:12:07 »
As I've just got a manual fisheye for my M3, I've tweaked my Landscape Bracketing Script to allow the fisheye to access exposure survey, auto-ETTR and all exposure bracketing modes.

You can read about the lens here: https://photography.grayheron.net/2021/08/new-lens-ttartisan-75mm-f2.html
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Offline pigeonhill

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Re: Landscape Focus Bracketing Script
« Reply #207 on: 07 / August / 2021, 11:39:36 »
Another test with the 7.5mm fisheye on the M3. This one a focus stack example:

https://photography.grayheron.net/2021/08/defishing-for-visual-impact.html
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Offline pigeonhill

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Re: Landscape Focus Bracketing Script
« Reply #208 on: 08 / August / 2021, 03:33:13 »
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Offline c_joerg

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Re: Landscape Focus Bracketing Script
« Reply #209 on: 08 / August / 2021, 05:26:15 »
Quote from: pigeonhill on 01 / August / 2021, 09:47:11
Another UI tweak  :)

https://photography.grayheron.net/2021/08/m3-landscape-bracketing-script-even.html

I’m using now M3 with 121a. Maybe you could update your script to 121a. Address can be found here:
https://chdk.setepontos.com/index.php?topic=13756.0

Not sure about get_lens_name.
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