Jim-Pops wrote:
My original photo was shot with intended white background. I recently wanted to make it soft as you see here. I had to do a lot of work with her hair to keep it from having a white fringe area.
The best way i found for such issues are to use a neutral grey background instead of a high contrast color like white or black.
Try pulling out the toy image out of the sample image below.
Hope this helps with your future shoots.
Because the new Operating System and architecture would not assure compatibility.
Even same generation software seldom run cross-platforms. As an example, a Mac based Photoshop will not run in Windows and vice versa, unless a virtual/emulator software is used.
Sunnely wrote:
Seems to apply to a number of politicians.
Nothing new there. Akin to the old adage:
1. “An empty vessel makes the loudest sound, so they that have the least wit are the greatest babblers.”
― Plato
or
2. An empty wagon makes a lot of noise.
And, may be to some degree to the Peter Principle and/or Dilbert Principle.
Our old folks would always say "A busy stream is shallow, still water runs deep" and that "The broken wheel creates the most noise".
My take on these... Art critiques LOL
Like all other options, Back Button Focus have their use, pros & cons etc.
BBF provides extra control and options when composing but it takes a little more learning and getting used to. I personally use it even if it usually makes bad photos when i pass my camera to somebody else should i want to be in the picture myself.
I suggest learning as much as possible about the setting, how to use it and do a lot of practice shots before trying it out on a serious photo-shoot. Not doing so may lead to too many missed shots and a missed opportunity to actually see the benefits of BBF.
Welcome. May you enjoy your free time to the fullest.
Longshadow wrote:
Yea, just like megs and gigs....
We (programmers) said 30K for a file that was 30 Kilobytes in size, NEVER Ks.
It was a 20Meg file, NO "s". (Meg stands for megabits, which is
already plural.)
The media and people who were NOT in computing started with megs and gigs as plural. Guess what became the "standard"? I STILL say 25Meg and 5Gig.
I can't wait until people start using ters for terabits. Why haven't they? Sound stupid?
(Sorry, been a hitch in my git-along since it started.)
Unless they dropped it, a "word" could be either 4, 8, 16,... bits, depending on the architecture of the processor. Many micro-controllers started with a 4 bit word. The Z80, 8080, 6800, etc. were 8 bit word processors. Then came the 16 bit word processors.
Yea, just like megs and gigs.... img src="https:/... (
show quote)
I guess the reason is that with regards to the digital technology, it grows too fast and with so much variety that users just tend to adapt what is the most common terms or usage instead of making a set standard.
As for ters LOL, i'm a little bit partial to "Teb" :-)
First of all, even the same brand and set-up of computers, monitors, printers can show different colors depending or their setting and ambient light. So we can expect the same between different brands. Let them be clear on this knowledge.
As for the files;
Save a copy in PDF with print marks and "Color bars".
When viewing or printing, adjust the monitor or the printer to render the colorbars in their proper color.
It should take away the guess work of showing the image as it should to the limit of the the monitor or printers gamut.
I had experienced the card giving up the ghost right in the middle of transferring images. I lost 2/3 of the vacation pictures i took. Its not a matter of doing everything right. These electronic devices do fail and usually at the most unfortunate moment.
Precisely the reason why i would not buy any cameras without 2 card slots.
A back-up is very important.
Lessons learned the hard way.
TheShoe wrote:
Since we are dealing with matters of definition, there is nothing de facto about it, it is 8 bits. In the earlier days when Hollerith Cards and Binary Coded Decimal were in use, the character was 6 bits. With later machines, a larger range of values was needed, which, in turn, meant that something was needed to replace the term "character". Enter the byte which is defined as 8 bits (a bit is 1 binary digit).
Byte:
Historically, a byte was the number of bits used to encode a character of text in the computer, which depended on computer hardware architecture; but today ("de facto") it almost always means eight bits.
https://en.wikipedia.org/wiki/Units_of_information
SuperflyTNT wrote:
A bit is not made up of multiple bytes. A bit has no size. It’s the simplest state of data and it’s either off or on. A byte is made up of 8 bits. JPEGs are based on 24 bits, or three bytes, one byte for each, red, green and blue. This gives each pixel a 256 tonal values for each color. If you shout RAW it’s based on either 12 or 14 bits for each color, which gives you 4096 or 16,384 tonal values per color, respectively.
Yes i got the term swapped. :-)
It should read as:
"The computer records them as groups of bits, like the 8bit/12bit/16bit/jpeg or RAW files where each group of bits is a byte and corresponds to a single shade/color. More bits per byte can produce more variations thus a smoother gradient transition."
Thanks for bringing that to attention.
A further note. At present, the byte has been a de-facto standard of 8bits. Hence, a 16bit file is actually 2bytes per single shade.
With the appropriate lens, the number of available pixels or sample points for recording (Figure 3A vs 3B) dictate how much detail can be captured. Figure 3A & 3B, both use a 4bit gradient, meaning both can can show 16 shades of grey. But 3B has more pixels compared to 3A, so it was able to show more detail because having more boxes to fill, it was able to use of more of the available shades.
On the other hand, the software (together with the sensor/electronics technology & pixel size) will indicate how much Color depth/gamut is possible (gradation/shade recorded per Bit - Figure 1,2 & 3)
The computer records them as groups called bits, like the 8bit/12bit/16bit/jpeg or RAW files where each bit is a group of bytes corresponding to a single shade. Higher bits produces a smoother gradient transition.
Figures 1A, 2A, 3A & 3B Shows how each would show a black pearl image.
Please note that this is a very simplified explanation.
Sensor only capture intensity of light. Hence, the matrix of the sensor are divided where some pixels have filters that allow only the green to pass, to output green signals. Others have red and the remaining with blue. Each one giving its share of the RGB signals whose blending produces the other colors/shade.
Technically, a 1megapixel camera, is only a 0.33megapixel camera. Because only 1/3 of its sensor record records each color*(not exactly true because some sensors have filters that favor recording more of one of the colors, such as the Bayer filter which allot more pixels for recording green). A group of 3 colorpixels are needed to show each point of color in the gamut.
To combat these inefficiencies, various software filters and algorithms like smoothing, dithering etc. are applied to the output. New technologies are also being explored such as pixel shifting & colored sensor layering
Rich1939 wrote:
This question is purely to satisfy my curiosity.
The larger pixel count cameras are universally praised for their ability to capture fine detail because of that pixel count. Does that high count also contribute to better tone graduations?
Please see my post
https://www.uglyhedgehog.com/t-585722-1.html#10026662
Welcome. What you got there do look like what we have in Asia, if not for the pale belly and enlarged cheek & throat. The ones we got commonly have a shade of yellow underside. It is known locally as "Bubuli". Average full grown size is about 9 inches from the tip of the nose to the end of the tail. They are normally found near a water source or moist areas. A very wary creature who would always run away and smells like pee.