Forum Replies Created
AuthorTopic: What Is Art Read 0 Times
“The Scanning Project”: YES!!on: October 9, 2019 at 12:29 pm
Yes, I would like George to continue this series. Many of us have an archive that needs attention and this may be the catalyst to vault us into taking action!
Steve SomersRe: AlitReply #1 on: August 26, 2019 at 1:42 pm
Beautiful! Nice catch!
When I’m walking with my wife and there’s a beautiful sunset, I’m thinking to myself: f8 at 1/250th second !
SteveRe: Finding photogenic waterfallsReply #2 on: August 23, 2019 at 2:47 pm
I appreciate the third one most. It provides more context around the fall that is very complimentary and interesting. Nice work.
SteveRe: Railways in MonochromeReply #3 on: August 23, 2019 at 2:44 pm
David, it’s a very dramatic rendition. I like it a lot. Nicely done!
SteveRe: Autumn in AberfeldyReply #4 on: August 20, 2019 at 1:30 pm
I agree with Kevin. This would make a fabulous large print. Really nice work! Thanks for sharing it with us.
SteveRe: Autumn Pond ReflectionsReply #5 on: August 8, 2019 at 7:32 pm
Impressive and worth the effort you put into it. Well done!Re: Dolgoch FallsReply #6 on: August 8, 2019 at 7:30 pm
Really nice work, Ken.Re: What is dynamic range?Reply #7 on: August 1, 2019 at 12:37 pm
You can think of dynamic range as how large the photon bucket is of each photo receptor in the sensor. The more photons that bucket can hold before it “runs over” is a measure of the total light intensity or range from dark to light that it can manage. This is a completely analog concept since the photoreceptor cells in the imager are just linear collectors of photons.
Bit-depth is simply a measure of how granular that photon bucket can be divided (sampled) to deliver a digital representation of the total number of photon variants in that bucket. More bits provides for more subtle change in the value of the light intensity captured in that photonic cell, or bucket. Having more bit depth leads to more precision in making adjustments — in the digital realm — to the image data later.
In television theory, a minimum of 11 bits was postulated in order that full tranmission and reception of tonal gradients could be seen without undue tonal stepping. Twelve bit systems cover this concept nicely and 14 bits covers it by quite a margin. Having 16 bits provides enough precision in granularity such that we have such slight changes in light intensity for each step that, for all practical purpose, it appears fully continuous to the human eye. In actuality, our display technology is more bit depth limited than our cameras. If you see any tonal steps in a 14 bit image, it is likely your display device and not the camera. Most displays today are challenged just to reproduce 10 bits of tonal depth. So, as usual, there are more issues in the output side than in the input side of the image transfer process.Re: Termite….Reply #8 on: July 3, 2019 at 11:07 pm
A man walks into a bar. Receives mild concussion.Re: Welcome to ‘About this Site’Reply #9 on: June 26, 2019 at 11:02 am
Congratulations to all of you on the launch of the web site today! Very exciting and I’m happy to be a part of its beginning. Best of luck!