John Rostron

Does the Sharpness filter action disappear from your History panel? John

You really need to view at 100% when comparing before and after. If you duplicate your layer first, then apply the filter, you can toggle the visibility of the sharpened layer to compare them (at 100% of course). John

Thanks @srg. It clarifies the question, but I still don't know the answer. The only thing I could suggest is that you post a couple of raw files which result in different DPIs when developed. John

@srg, are you saying that you can take two different files from the same camera and then develop each of them, then they result in two different dpi settings in the developed images? John

No problem. You just need to tell Photo where the Nik .8bf files are. Use Edit > Preferences > Photoshop Plugins, then navigate to each folder an click on Add. You will need to restart Photo. John

One possibility is that you have a memory leak from another process. On Windows, I would have the Task Manager window open to monitor memory use. I assume that there is an equivalent facility on a Mac. John

In the past (before the current update) I have found that if I Rasterize & Trim an image, then it behaves itself in the Nik plugins. John

@John van Barneveld, how did you acquire your negative image? Colour negative film has an additional orange mask. Scanner software will take this into account, but if you scan a negative film as if it were a positive, and then use Layer > Invert, you get the inverted mask as a bluish colour cast. Edit: So when you are scanning your image, you need to tell your scanner software that it is a colour negative. John

This link seems to be broken. John

You need to ensure that Affinity Photo is set as the default program to open tiff files (rather than Photoshop). Your windows search box should find the scanner software for you, but make sure the scanner is switched on before calling it. Having made the scan to your satisfaction, save it as a tiff file. It should then open automatically in Photo. This should happen whether or not Photo is already open. I find that when it opens the file, the Photo icon on the taskbar turns orange. Click on this and there is your scanned file in Photo. John

If you use the Search for 'Flag-Waving', then it should point you to the macro I wrote to do just that (I actually called it Vexillomorphic Transformations, but that was just showing off). John

In Windows, if you have Affinity Photo as the default program to open tiff files, then if you save your scanned file as a tiff, it will automatically open in Affinity. This works for other file types. This works for me with VueScan and SilverFast. It should work with the software from your scanner. John

What photo library? I'm on Windows. John

I would assume that your macro behaviour will depend on the size of the size of the document. Why don't you try it and see? John

ViewPoint should work as a standalone, so you do not need to regress to Photoshop. John

You are unlikely to gain any advantage in trying to simulate bracketing using jpegs. These are typically 8-bit. You can get some useful pseudo-bracketing if you start with raw files as these are typically 12- or 14-bit. Most HDR software generates a high bit-depth image (32-bit) which encompasses all the range of exposure values in your multiple exposures. You cannot get this from a single original image. John

It is very much a case of suck it and see. The highlighted spots in the FFT diagram denote frequencies characteristic of regular noise. You could take a gradual approach by erasing the brightest quartet of spots first, then see how that looks; then the next brightest quartet and so on. John

I use a film scanner (Nikon LS 50). The few times I have scanned black-and-white negatives (or positives) they have come out fine using either VueScan or SilverFast. John

No image editor will change the raw file (not even Adobe Raw). Many image editors save a record of edits that have been made as sidecar files. Affinity does not. If a program saved your changes back to a raw file, it would no longer be a raw file. Many users have requested that Affinity implement sidecar-like files. So far Serif has not committed itself. John

When I joined this forum, I assumed that, like some other forums, i could not simultaneously be logged i from both my desktop and my laptop. It seems that I can so there is no real reason not to stay logged in. Perhaps I will. John

Obviously, but it is still annoying. Most websites seem to be able to manage cookies without this intrusive reminder every time. John

Darkness, yes. To dark to see much at all, especially the first. John

Your title is misleading. There is no request here for "Urgent Attention"! Just polite requests that have been made before in numerous posts. John

@Smee Again, a nice photo. The Turkeytail fungus is extremely variable ranging from dull grey to rich orange. Your bunch shows the range in the cluster! Your edit has brought out the orange nicely. John

I think my equations-based macro should do what you want. (Follow @HVDB Photography' link.) You would need to create your own macro with your target maximum size. In the second step, you should now use Layer > Rasterise and Trim (new in the latest versions) rather than plain Rasterise. I will repost this macro with this update. John