Posts by Truth4u

Re: Many do not have a choice.

Two years is a long time to learn the lesson about tailoring your CV.

People love to list every minor achievement, every technology, every system they've touched, however tangentially, and all of their out of date qualifications. The reason why is understandable: having spent a year of your life dedicated to some minor cause, you want to talk it up like it's the most important thing, even though it isn't. That's human nature. But drop the ego, and surprise, the offers come in.

Can you imagine the crowd going wild over Zuckerberg's zingers? Not so much. Being a man of the people doesn't mean you have to love everybody, that's wrong. But you do have to love somebody, and Zuckerberg doesn't love anybody. I feel like his marriage is a strategic business move to leverage the China situation. If Zuckerberg told a joke I would be like gee, I wonder who wrote it.

Re: Foveon

Let me summarize my argument again so there can be no straw men:

Image sensors detect colour by filtering out two channels of light from every pixel. If it's a green pixel, the filter is blocking red and blue light, sending it to /dev/null if you will. That is light that was reflected from the scene you are trying to photograph. It carries information about the scene. How could it not do? That information is absorbed in the filter and never gets to reach the image sensor. The filter is removing detail from the image, and sophisticated software is used, in post processing, to give the illusion that the detail was not removed.

Pretty easy to understand right?

It's not really possible to see the loss of detail in an image that has been scaled down anyway, which is why digital cameras these days have such high resolutions, way above the pixel count of our monitors. But what if you want to zoom to 100% of the photo and crop another smaller one out of that? Then you are missing the colour detail. Foveon is the solution today, and some other sensor will be the solution tomorrow.

This is a fantastic tool for creatives, and I'm not going to let you rain on my parade!

Re: Foveon

"but far more objectionable are chromatic aberrations and lens distortion. Both of those can be corrected out by a decent RAW converter, but the only converter available for Sigma Foveon cameras is lacking in those facilities, is slow and badly written."

Obviously you have NOT looked at any Foveon images. The lenses Sigma use on their Foveon cameras are fantastic. If you can find lens distortion on one of their images, be my guest and post a link. I'll be right here buddy.

So which camera maker do you work for?

Re: Foveon

I don't care which weasel words you use or how many sock puppet accounts you use to thumb me down.

If you can't see how detecting the colour value at every pixel is better than a CFA, then you are a complete no hoper. You're either mentally handicapped, which I don't think is the case, or you are invested in CFA technology, which from your weasel words and lawyer talk here, is looking increasingly likely.

Stop dodging the question: Do you or do you not think CFA image sensors are perfect and that no other design could improve on them??? It's a yes or no question Steve, I don't want any more of your weasel words.

I like Foveon because it's good, I use the camera regularly, my pictures look awesome, and your claims to have compared the images come down to lies at the end of the day. Unless you can link some real evidence instead of constantly asserting things without any proof, you are just another internet troll.

Every claim I've made is documented in the Foveon literature. I have conceded the sensor can create noise and colour distortions but the issue must be pretty damn minor, because my photographs look fantastic.

Have fun trolling. peace out.

Re: Foveon

Well I think my Foveon camera is pretty damn good and if you don't like it then that just leaves more opportunity and fun for me. It's a bit like Linux in that respect.

In any case I'm not going to buy another digital camera until a new type of sensor is developed without a CFA. Foveon is the only commercially available alternative right now. There will be better technology in the future.

You argue that human eye is more sensitive to green, so why would it not be better to detect the level of green at every photo-site instead of just half the photo-sites? It's almost like you don't want image sensors to improve.

Re: Foveon

For example, I have taken pictures of buildings where the blinds in the windows cause luminance aliasing. It's not the end of the world, that's what it looks like with the naked eye. Not everything is a defect that needs to be filtered out. And maybe that is why these Foveon sensors have a small cult following.

Re: Foveon

I guess you miss the point. It's not a holy image sensor that creates divine images. It's just a different way of imaging colour. If you'd consider going back to film, with all the cost and tedium involved, because you want a particular aesthetic, then you might at least consider trying a different type of image sensor.

If Bayer is so great, then I guess this whole article is just pointless rubbish then right? He could have taken the pics on a digital camera and the amazing Bayer sensor would have created those filmlike images full of soul and life that the author wanted? Or maybe they would just be the same crappy Bayer images we've all seen.

The lack of an AA filter in Sigma cameras isn't a cheat This isn't a video game we're talking about. Multilayer sensors don't need your crappy algorithms and that's why they produce images that look like film.

So I guess the Foveon sensor produces colour distortions and noise. Well boo hoo, Stop your crying. Those distortions and noise are what makes the photos look good and not like your average soulless, dick-less, skinny jean hipster selfie.

Re: Foveon

I'm not really sure where you got your information or how you drew your conclusions if it wasn't by ignoring the evidence. In fact your post seems like fragrant misinformation, have you even looked at the comparison photos? It's almost like you sell bayer filters or something.

Re: Great idea and all that...

"You know what? Screw you."

Wow you totally changed my world view.

But not really.

Re: Great idea and all that...

teachers will be using these as coasters and ash trays