[Mike Nelson Pedde Participant Posts: 641]

HDR & Pano Merge in Affinity Photo

on: May 18, 2020 at 9:40 pm

I really hate it when the forum eats my posts w/o bothering to warn me. Let’s try this again…

I’ll be the first to admit there’s a lot about colour I don’t know, so feel free to correct me if I mis-step. I have a Sony A7RIII, Capture One Pro for Sony 20.1 and Affinity Photo 1.8.3.

NB: I can’t see what you’re seeing because your monitor is different. Also, these are sRGB .jpg screen captures of what I’m seeing. Still, there’s value in comparing them to each other.

1) In Affinity/Preferences/Colour I have the default set to ProPhoto RGB:

2) If I select some raw files and make a panorama out of them, Affinity stacks them and renders them as a panorama. At that point I click on the Develop module, go down to Profiles and set the profile to ProPhoto RGB and click Apply. Once you click Apply it sets the rendered file as a pixel layer. Now, if you go to Document/ Convert Format / ICC Profile you’ll see that Affinity has set it to ProPhoto. It appears to default to sRGB but I haven’t tested it extensively.

3) Now, Lightroom works with Melissa RGB as a default colour space. Capture One doesn’t say, but I presume it’s similar. No matter. When I imported these raw files into C1 I used the Sony A7RIII generic profile, and the standard curve. No other adjustments have been made.

4) I exported the three raw files from C1 as .tif files using the ProPhoto RGB colour space, imported them into Affinity Photo and made another panorama. I exported the panoramas made with the raw files using an sRGB Document profile and a ProPhoto RGB document profile (both exported using a ProPhoto RGB profile), and I exported the panorama made using the .tif files, again using a ProPhoto RGB profile. I imported those three panorama files into C1. Here’s the comparison:

The top three images are the raw files in C1. Bottom left is the panorama made from the C1 .tif exports. The other two images are the panoramas made from the raw files, using an sRGB Document profile and a PhotoPhoto RGB Document profile. The last two are almost indistinguishable, but there’s a small difference with the other four.

(running out of attachment space…)

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Mike Nelson Pedde
Victoria, BC
https://www.wolfnowl.com/

[Mike Nelson Pedde Participant Posts: 641]

Re: HDR & Pano Merge in Affinity Photo

Reply #1 on: May 18, 2020 at 9:43 pm

Here’s another example:

This is an overlay with two of three raw files in C1 on the left, and the panorama made from them in Affinity Photo on the right.

Again, I exported the three raw files as .tif files and made a panorama out of them:

Again, quite a difference. It seems that while Affinity can make panoramas, I need to create .tif files first rather than simply using the raw files.

Mike.

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Mike Nelson Pedde
Victoria, BC
https://www.wolfnowl.com/

[Mike Nelson Pedde Participant Posts: 641]

Re: HDR & Pano Merge in Affinity Photo

Reply #2 on: May 30, 2020 at 6:34 pm

Hi Folks: I added some more thought to this process today and put it up on our blog. Rather than duplicating it all here, you can find it at: https://www.wolfnowl.com/2020/05/affinity-photo-panoramas-a-quick-tip/

Mike.

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Mike Nelson Pedde
Victoria, BC
https://www.wolfnowl.com/

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