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[article author here] It's in a comment elsewhere here but: the new approach is to use a camera simulation that more closely models how light moves through a re

[article author here] It's in a comment elsewhere here but: the new approach is to use a camera simulation that more closely models how light moves through a real camera rather than the textbook circular kernel approach that has stuck since Levoy's early experiments in this space decades ago. We optimised the approach to more closely resemble what happens in and with an actual camera. As to whether it looks good or not - that's entirely subjective. Try it out; it might be that as an individual you prefer to dial down the defocus etc (I'll admit - the examples are a bit exaggerated).

poniko 5y ago
Thanks for the response, the main issue I have is that the blur is more of a tilt-shift then an bokeh. I don't understand why there is blur in front of the subject in many of the examples, also the blur is way dialed up and the edges becomes to sharp. It also seem to be very aggressive on the depth it starts to blur on, the ear of the dog is blurred as well as the foot of the people racing. My example https://imgur.com/a/pitVg0K https://imgur.com/a/pitVg0K .. weird slimmer of tiltshift-focus on the ground, "one pixel" non blurred border on one side of the legs, harsh edge on the other side and blur bleeding into the hat part .. nothing I would use. Disclosure i do work with pixlr.com.
- notorious_IPD 5y ago
  Generally speaking: I do agree that the degree of blur in the examples is a bit too obnoxious. It was exaggerated for effect, and dialling it back a bit would be a prudent move. As far as the tilt-shift look goes - being precise I think you're thinking of tilt-shift miniaturisation. In cases where you're shooting with really shallow depth of field - like wide open on a portrait lens, or with a large format camera or yes, a tilt-shift lens in the anti-Scheimpflug mode - you absolutely can have foreground elements blurred out. I wrote a bit about that here: https://bhautik.org/tilt-shift-a-diy-guide/ https://bhautik.org/tilt-shift-a-diy-guide/ I'd love to look at the source image for your example; some of this is explainable, some not so much and I'd like to understand why. The sharp aliasing around the edges is weird, and that looks like a legit bug, as well as the blur leakage (we're trying to prevent that!). Also, it looks like the depth was incorrectly estimated for the feet so it's lumped them into the foreground and blurred those too. An easy fix is to suggest trying it with less blur, but there's other stuff going on. We'll look into it :)

poniko 5y ago

Thanks for the response, the main issue I have is that the blur is more of a tilt-shift then an bokeh. I don't understand why there is blur in front of the subject in many of the examples, also the blur is way dialed up and the edges becomes to sharp. It also seem to be very aggressive on the depth it starts to blur on, the ear of the dog is blurred as well as the foot of the people racing. My example https://imgur.com/a/pitVg0K https://imgur.com/a/pitVg0K .. weird slimmer of tiltshift-focus on the ground, "one pixel" non blurred border on one side of the legs, harsh edge on the other side and blur bleeding into the hat part .. nothing I would use. Disclosure i do work with pixlr.com.

notorious_IPD 5y ago
Generally speaking: I do agree that the degree of blur in the examples is a bit too obnoxious. It was exaggerated for effect, and dialling it back a bit would be a prudent move. As far as the tilt-shift look goes - being precise I think you're thinking of tilt-shift miniaturisation. In cases where you're shooting with really shallow depth of field - like wide open on a portrait lens, or with a large format camera or yes, a tilt-shift lens in the anti-Scheimpflug mode - you absolutely can have foreground elements blurred out. I wrote a bit about that here: https://bhautik.org/tilt-shift-a-diy-guide/ https://bhautik.org/tilt-shift-a-diy-guide/ I'd love to look at the source image for your example; some of this is explainable, some not so much and I'd like to understand why. The sharp aliasing around the edges is weird, and that looks like a legit bug, as well as the blur leakage (we're trying to prevent that!). Also, it looks like the depth was incorrectly estimated for the feet so it's lumped them into the foreground and blurred those too. An easy fix is to suggest trying it with less blur, but there's other stuff going on. We'll look into it :)