Archived posting to the Leica Users Group, 2020/04/27

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Subject: [Leica] IMG: rose, focus stacked
From: abridge at mac.com (Adam Bridge)
Date: Mon, 27 Apr 2020 15:44:58 -0700
References: <ADCE498A-AC21-4EA1-8157-4C9E3D4372E8@mac.com> <f6cd1608-18e5-a479-98f5-9c0989f1b149@gmail.com>

Thanks for taking the time to explain the focus stacking functionality.

I thought I understood how it works but right now I?m not so sure. I THOUGHT 
I?d put in the # of steps, and the step size and it would do the calculation 
of how much of a change is required for the focus. But it doesn?t seem to 
work like that. To get a really deep focus I?d have had to put in 100 
instead of 50. That?s a lot of images to record even with an electronic 
shutter and no delay.

So I?m still learning.

The Fujifilm X-T3 & 4 also have focus bracketing.

The color profiles are quite interesting. The ACROS for monochrome looks 
really interesting. I guess Fuji supplies them to Adobe who incorporate them 
into Lightroom? It?s a fascinating capability.

Adam

> On 2020 Apr 27, at 2:04 PM, Frank Filippone via LUG <lug at 
> leica-users.org> wrote:
> 
> What a beautiful shot!  Love it....
> 
> For the masses..... Adam's GFX has built in focus stacking SW. You input 
> the number of shots you wish to take, the closest and furthest image 
> points, hit a button, and the camera does the rest....  the camera figures 
> out what the optimum focus points are for each stacked photo.
> 
> ITOD ( in the old days) or if YOUR camera does not have the built in SW, 
> you had to do all of this manually.... Infinitely hard to calculate ( or 
> guess)..... I have done it once with success, and myriad of times with 
> abject failure.
> 
> Nicely seen, nicely executed and a beautiful subject..  Only the results 
> count... and this is a beauty.
> 
> On 4/27/2020 1:47 PM, Adam Bridge via LUG wrote:
>> Here?s my first attempt at focus stacking with large images:
>> 
>> <https://adam-bridge.smugmug.com/Flowers/Studies/i-CSM44KP/A>
>> 
>> Shot with a Fujifilm GFX100. 50 images show in ?focus bracketing? mode, 
>> electronic shutter.
>> 
>> I only had a few minutes to work before the breeze came up.
>> 
>> There are issues in a few places but I?ll figure out the software Real 
>> Soon Now. <grin>
>> 
>> The stacking was done with Helicon Focus. It?s an excellent example of 
>> how to use the GPU effectively! It allows the output to be saved as a DNG 
>> file which allows greater latitude in development.
>> 
>> In Lightroom I used the ETERNA color profile. Many of the possible 
>> profiles, included the default Adobe profile, were simply too vivid 
>> compared to the flower I actually saw. That seems to be a trend for the 
>> handling of this camera by Adobe - they must have been needing more 
>> vibrancy or something.
>> 
>> Comments and thoughts most welcome.
>> 
>> Adam Bridge
> 
> 
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In reply to: Message from abridge at mac.com (Adam Bridge) ([Leica] IMG: rose, focus stacked)
Message from bmwred735i at gmail.com (Frank Filippone) ([Leica] IMG: rose, focus stacked)