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Messages - garry23

Pages: [1] 2 3 ... 56
1
Scripting Corner / Re: Lua Scripting (lua.mo)
« on: Today at 12:32:34 PM »
That did it  :)

Thanks for the insight.

Cheers

Garry

2
Scripting Corner / Re: Lua Scripting (lua.mo)
« on: Today at 11:52:52 AM »
@a1ex

BTW is there a reason that, when auto bracketing, the process doesn't return to a 'normal' (liewview) screen view: Rather it stops at the 'last image taken' review screen, which I can clear with a half-shutter.

My Canon review is set to off.

Cheers

Garry

3
Scripting Corner / Re: Lua Scripting (lua.mo)
« on: Today at 09:49:55 AM »
@a1ex

Thanks for the new Lua experimental build.

Had a very quick look on my 5D3 this morning and things look good, i.e.dofs look ok and auto bracketing seems 'better'.

Once again cheers.

Garry

4
General Help Q&A / Re: Auto Bracketing and highlights
« on: Yesterday at 01:36:05 PM »
@A1ex

So where does that leave us?

Keep the code as is?

Hardwire a tweak in the code?

Add in a hidden menu tweak that can be accessed from Lua.

Cheers

Garry

5
As I use ML in the technique, some may be interested in my latest bit of fun: http://photography.grayheron.net/2018/01/an-alternativenew-approach-to-focus.html

6
General Help Q&A / Re: Auto Bracketing and highlights
« on: January 02, 2018, 06:55:33 PM »
@a1ex

As you look at the highlights threshold could you also look at shadow end. Once again I think it stops too soon. For example, in this sequence it stopped at least 2Ev down on where I would have liked. The darkest here is what the Auto Bracketing created, the additional ones are my manual add ons.

Once again, I feel that the 'adds ons' feature (highlights and shadows) would be a great (advanced) feature, possibly via a hidden menu item, ie low and high xEv add on brackets.








7
General Help Q&A / Re: Auto Bracketing and highlights
« on: January 02, 2018, 08:00:10 AM »
@a1ex

Here are four JPEGs around where I think the highlight capture ought to stop. It is difficult to judge which one is 'right' as trying to capture the filament of the bulb is clearly too far.











I'll let you have a look and see what you think.

BTW I understand your YAMLMO and recognised this myself in my Focus Bar Script, where I wanted another script to change a variable. I 'solved' this by hiding the menu item from the user, thus respecting the YAMLMO but giving control over the variable via Lua. Would this be worth considering, ie so 'power users' could tweak the highlight condition via Lua. Just a thought.

Cheers

Garry

Cheers

Garry

8
General Help Q&A / Re: Auto Bracketing and highlights
« on: January 01, 2018, 09:16:33 PM »
@a1ex

Will do, but can't at the moment.

By the way would you consider adding this default as a user variable, eg settable between, say, 0.2% and say 0.05% or 0.02%?

Cheers

Garry

9
General Help Q&A / Re: Auto Bracketing and highlights
« on: January 01, 2018, 08:40:44 PM »
@a1ex

A further thought.

Using an 11mm lens, the highlight feature, a light, is small in terms of the pixel real estate.

Could this be 'the issue', ie 0.15% gets reached because there are not enough highlight pixels to drive the algorithm further.

If so, maybe this points to a need to rethink the algorithm wrt to focal length?

Or add on an option to take 'an extra one or two brackets'?

Cheers

Garry

10
General Help Q&A / Re: Auto Bracketing and highlights
« on: January 01, 2018, 08:32:10 PM »
@a1ex

Just played around with picture styles, ie using monochrome the process goes lower than 0.15% on the same scene.

Does that mean playing with picture styles may help when auto bracketing?

Cheers

Garry

11
General Help Q&A / Re: Auto Bracketing and highlights
« on: January 01, 2018, 08:20:55 PM »
@a1ex

Just tried it on a different composition, but still high dynamic range.

I'm using a 5D3 and an 11mm Irix.

Latest experimental Lua Fix.

I tried 1 and 2 Ev steps in the auto.

Each time the process stopped at 0.15%.

Cheers

Garry

12
General Help Q&A / Re: Auto Bracketing and highlights
« on: January 01, 2018, 07:33:30 PM »
@a1ex

Here is the JPEG extracted by dcraw from the RAW: that is the highlight capture




13
General Help Q&A / Auto Bracketing and highlights
« on: January 01, 2018, 07:06:34 PM »
I have a use case where I was hoping the auto bracketing would help.

Namely, set the exposure for the shadow capture and let the auto bracketing capture the highlights.

The scene has a high dynamic range and very bright light sources, which seem to create problems.

The problem I'm facing is that the auto bracketing stops short of addressing the very bright highlight, ie it is over exposed in that area in RAW.

Here is a zoomed in JPEG from LR:





The auto bracketing does not have any settings, like ETTR, I'm wondering if it would be helpful to give the user some control in the auto bracketing, eg how many stops to keep going after the ML algorithm thinks its finished.

Cheers

Garry

14
Hardware and Accessories / Irix 11mm
« on: December 28, 2017, 12:11:20 PM »
Santa delivered this year and I'm now the proud owner of an Irix F/4 11mm Blackstone lens.

This lens has the widest FOV with the lowest distortion of any lens I'm aware of.

In case anyone is interested in this lens, I've posted a few insights on my blog:http://photography.grayheron.net/2017/12/understanding-irix-11mm-depth-of-field.html

15
General Help Q&A / Re: Focus Stacking for
« on: December 21, 2017, 12:44:10 PM »

16
Scripting Corner / Script UI
« on: December 19, 2017, 11:06:28 AM »
I'm writing this short post in the spirit of passing on my humble learning, in order to help others trying to script.

As 'the ML gurus' know I am far from a scripting expert, nevertheless, through a lot of experimentation, and guru support, I've picked up enough to 'get by' in scripting.

BTW I noticed lately a few 'negative' or 'curt' comments appearing on the forum, and this saddens me; as 'the gurus' give their time freely and people like me have a lot to learn from them. I hope others posting respect the hardwork of 'the gurus'.

As for the reason to post this entry, it was to feedback that scripting is all well and good,  ie getting the syntax and 'equations' right; however, a good script can be let down by a poor/weak User Interface (UI): which I think covers: usability and user experience.

Having now reached the 'script and maths' is right stage, I realized my two main scripts (The Focus Bar and The Toggler) were letting themselves down wrt their UI.

Of course I can only talk about this through my (old) eyes and how my brain works, but I was clear to me (pun intended) that the UI needed attention. For example, font size and font colours (foreground and background), plus message positioning.

I've therefore attempted to get a 'better' user experience and welcome any feedback on what I've tried to do.

The Toggler is at https://gist.github.com/pigeonhill/508a3722b9dc319b64ca4c5972b9e50b

The Focus Bar is at https://gist.github.com/pigeonhill/cd1dbe0191ca1264fc0aa07aaafb515d

17
Scripting Corner / Re: Focus Stacking with Focus Bar
« on: December 16, 2017, 02:16:53 PM »
As some think using pictures and others through text & numbers, I've added a data-based focus quality indicator to my Focus Bar script: http://photography.grayheron.net/2017/12/there-are-two-kinds-of-people-in-world.html

18
Tutorials and Creative Uses / Extreme non-macro focus stacking
« on: December 13, 2017, 05:59:06 PM »
As I've spoken a lot about the technical side of my Focus Bar, ie using blur info, I thought I would give a simple demonstration.

In this case how the focus bar helped me capture a 12 image non-macro focus bracket set: http://photography.grayheron.net/2017/12/extreme-focus-stacking.html

19
Scripting Corner / Re: Focus Stacking with Focus Bar
« on: December 11, 2017, 04:14:43 PM »
A few tweaks to ensure Toggler and Focus Bar work well together.

Download from here (on the right): http://photography.grayheron.net/

20
Scripting Q&A / Re: Script termination
« on: December 11, 2017, 02:57:35 PM »
@dmilligan

David

Can you please confirm that if I do a test such as that as the first few lines in my script, i.e. with a return, then the rest of the script won't be loaded.

Just tried it: thank you :)

Cheers

Garry

21
Scripting Q&A / Script termination
« on: December 11, 2017, 10:04:08 AM »
Hope someone can educate me.

At the moment one of my scripts, on loading for the first time, uses an IF-THEN-ELSE, which first detects that a lens is AF capable, and if it is it carries on with the script, ie loading variables, menus and function.

If the lens is not an AF one, the script simply shows a console message and does nothing else.

This means I need to put the main part of my script in the (main) IF-THEN-ELSE, like this:

Code: [Select]
IF test-true THEN
carry on with main script
ELSE
console-message
END

Is there a way to put a test, up front in a script, that checks things and then doesn't load the script?

Cheers

Garry

PS having been prompted by @dmilligan, I hope this is an X question, rather than a Y one  ;)

22
Camera-specific discussion / Re: Canon EOS M
« on: December 11, 2017, 03:54:27 AM »
You should be using the latest nightly Lua fix experimental build.

I don't understand what you mean by getting the timing right

All you need to do is press PLAY then, with no timing sensitivity, INFO

If you are seeing 'Exit & Do Nothing' you are in interactive mode.

Now press MENU and PLAY to move through your presets.

Once you find a preset that you wish to change, then press INFO, this will toggle that state according to your scripting and exit interactive mode. Pressing PLAY twice will give you normal PLAY.

1TOG2 is the right script.

Have you read and changed the script to your needs.

The default toggler script runs with my Focus Bar script, although toggler should run if FB is not loaded, i.e. the FB menu toggles are ignored.

Cheers

Garry

23
Scripting API suggestions / Re: Menu Changed Property Handler
« on: December 10, 2017, 11:39:11 PM »
@dmilligan

Sorry if I confused things.

I've got a work around going by having a dummy menu item in script A that can be switched by script B. Thus script A only needs to watch the menu item and take action.

Thanks for your feedback and help.

Cheers

Garry

24
Camera-specific discussion / Re: Canon EOS M
« on: December 10, 2017, 07:24:46 PM »
@MrFurious70

I wrote the Toggler script to run in the background, i.e. There are no menus.

To use just pres the PLAY button followed by the INFO button, this puts you in interactive mode. The toggler should show at the top middle.

You toggle through your preset  states using PLAY and MENU.

Once you reach a state you want to toggle, press INFO to exit toggler and set that state.

Toggler is designed for you to rewrite to your needs.

Cheers

Garry

25
Scripting Q&A / Re: Menu hidden query
« on: December 10, 2017, 03:44:03 PM »
@a1ex

This is the reporting I like, ie it is not my stupidity  :) ;)

Cheers

Garry

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