In terms of further automation, in both RawTherapee and Affinity it was simply a case of loading in all the photos and batching them whilst I did other things, the former whilst sleeping, the later whilst walking the dog!Ī: I wanted as sharp an image as possible. After that, you press the shutter button and leave it to it until it's done. This is an arbitrary number from 1-10 and the amount it moves the lens' focus varies wildly with lens, focal length and focus distance, so it's guess work as to the right number. You specify the number of shots and the "stepping". Q: Was it by focussing or with a rack? Was it automated?Ī: It was automated: the camera has a focus bracketing function. Missed out some Rostron Some good questions and points here which I'll address a bit out of order, as that should make more sense. A few more threads might be nice though Edited Jby gypsythief In conclusion, I'm very impressed with the ability of Affinity Photo to deal with huge amounts of data without choking. I included my GPU in the list as Affinity Photo does seem to use it a bit: 5-8% GPU activity shows up in Task Manager during Focus Merges I've no idea if it makes a difference though. A lower core count / faster GHz processor would therefore seem to be an advantage during the stacking process in Affinity Photo, whilst RawTherapee clearly liked all the cores it could get it's sticky little paws on. Memory usage from RawTherapee and Affinity Photo pottered around the 2-3 GB mark RawTherapee thrashed all 4 cores / 8 threads in the Raw -> PNG conversion (but still took ages I left it going over night, so I don't know quite how long.) , whilst Affinity Photo used 1 core / 2 threads for the stack. I largely seemed to be CPU-bound during the various processing stages. In case anyone is interested in the hardware involved, here's the list: It took just over 1.5 hours to complete the merge, and I'm very pleased with the results: I then fed them into Affinity Photo's Focus Merge and let it churn away. These I then processed into 16 bit/channel PNGs using RawTherapee which came to 24.7 GB. To achieve the focus merge, I took 270 20-megapixel raw photos, totalling 7.8 GB of data. One of the reasons for this post is to showcase the ability of Affinity Photo which coped with a quite staggering amount of data (the other reason is a desire to share what I think is a quite stonking photo!). Yesterday, I came across an unfortunately-demised beetle which seemed to be a perfect opportunity to try a more technical, tripod based, photo merge. Due to the hand-holding, there are often a few ghosting artefacts around some edges, but nothing that a bit of AffinityPhotoShopping can't sort out. Generally, these consist of 10-30 shots that Affinity Photo churns through and merges in very short order. The focus merges I have done thus far have typically been hand-held and of fairly large 'macro' subjects such as mushrooms and flowers. Not too long ago, in a land not very far away, I came across the concept of focus merges to dramatically increase depth-of-field of photos, especially macro ones. This was one of the reasons I bought Affinity Photo, as having learned the technique I had a requirement for affordable software the could do a good job of a focus merge.
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