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Cameras and Lenses

ciechanow.ski

61–70 of 241 posts

Re: Cameras and Lenses

#61
The website sliders don't work well with a touch interface. If I use a mouse, I can smoothly move the slider values. But attempting to tap and slide them either has no response or makes the slide move to the extreme left or right.

I'm using Firefox (Nightly) on a Windows 10 tablet (Microsoft Surface Go).

Re: Cameras and Lenses

#62
post #57

Earlier quoted context omitted.

Not sure but - as film e.g. captures actual photons from the scene, probably some kind of information is encoded through that. Bokeh is a kind of of space representation, similar to how you can basically "see" through hearing a sound stage of instruments separated properly when someone has a really good sound system, or how dogs have "5.1/7.1" sense of smell. How does one encode that I have no idea.

Look into light field photography tech. It is possible to capture a ”volume of light”, within which bokeh & more can be adjusted after the fact. Issue is the amount of data generated and complexity of tech versus getting a ”good enough for most situations” image via simpler means (regular photo). Regular + depth images (Apple LiDAR etc) with help of AI can create something vaguely similar to actual bokeh, but they’re…

Wow. I left the CG industry 3 years ago in a sad bout of defeat, involving both an ability to make a decent living and a realization that it would never my standards of creative engagement that were set by my lifetime love of photography and film. But, this project is very cool.

Re: Cameras and Lenses

#63

The website sliders don't work well with a touch interface. If I use a mouse, I can smoothly move the slider values. But attempting to tap and slide them either has no response or makes the slide move to the extreme left or right. I'm using Firefox (Nightly) on a Windows 10 tablet (Microsoft Surface Go).

Sliders work perfectly for me on latest FF on latest LineageOS, which suggests that it's not a problem with the website, rather with either FF or Windows on your device.

Re: Cameras and Lenses

#64
post #7

Although I knew most of technical aspect described having immersed myself in Photography several years ago, I cannot express properly how GOOD this article is. The sliders and diagrams are brilliant for helping a layperson understand how it all works. Kudos!

I agree, it's pretty basic but for people that don't know any of this it's an excellent explanation.

Re: Cameras and Lenses

#65
I’ve been an amateur photographer for over 10 years now, and I’ve never seen such an easy-to-understand but still mathematically in-depth explanation of depth of field until now. Bravo. This is excellent.

Re: Cameras and Lenses

#66

The website sliders don't work well with a touch interface. If I use a mouse, I can smoothly move the slider values. But attempting to tap and slide them either has no response or makes the slide move to the extreme left or right. I'm using Firefox (Nightly) on a Windows 10 tablet (Microsoft Surface Go).

It works flawlessly on my iPad in Safari.

Re: Cameras and Lenses

#67

I have a question for the more knowledgeable: Color filters on the sensor split the light into three wavelength ranges - red, green, blue. Then photosites measure intensity of light, which means that sensor only knows that the incoming photon is "roughly green", but doesn't actually recognize its precise wavelength. So e.g. when the light is pure orange, it falls down into red wavelength range and is counted as red.…

It works because the system is faulty in the same way our eyes are faulty, we basically have sensors for three main wavelengths and derive every color we perceive from a mix of those three, check this out:

https://en.wikipedia.org/wiki/Color_vision#Physiology_of_col...

https://en.wikipedia.org/wiki/Trichromacy

Re: Cameras and Lenses

#68
post #60

Earlier quoted context omitted.

Actually being Polish I can say it is correct, at least for the cases mentioned (also correct for suffix -cki). However it is true that there are surnames that do not follow this particular inflection scheme. Keep in mind that Poles are likely to use a single, male variant of the surname, rather than explain the intricacies of inflection in the Polish language.

-A former girlfriend is of a Russian emigré family; she always got a chuckle out of Norwegians' inability to understand the concept of inflection. Her father as a matter of course got letters from all her leisure activities, school &c addressed to 'Mr. Yuri ----skaia'. - as her last name was ----skaia, obviously his would be, too. At least for us inflectionally challenged Norwegians.

Reminds me of Nabokov complaining about the incompetent translators of Russian novels → English writing Mr. Karenina.
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