Juy Loc: Delaware

I got nothing out of this thread,except allot of egos wanting to be heard

imagextrordinair Loc: Halden, Norway

Agree with all of your comments and will add this...

“Pixel” can be an abbreviation term used to discribe a “picture element" from a light emitting display. It is a combination of three color squares projected to translate pixel information from your jpeg or a raw file and others.

When describing images processed from Photoshop or other design tools, your talking about "logical pixels". The “logical” refers to the fact that these pixels are "just information". They specify a color value at some location on a data grid representing the image.

"Logical pixels" have NO inherent physical dimensions. An image that has 100 x 100 "logical pixels" has no known size until we specify the conditions under which the image is to be displayed.

A print is just another translation from data containing pixel information...

jlocke Loc: Austin, TX

How about you look at what the printer requests be submitted? I recently ordered a metal print from Artbeat Studios, and their Web site tells you what they want (like most printers).

"File Preparation:
Accepted file formats are JPG, TIFF, and PNG, but JPG is preferred.
8-bit RGB files only
Embedded color space should be Adobe RGB (1998)
If you have done any retouching work on the image in Photoshop, make sure that all layers are flattened before saving your final copy.
For sample prints, we recommend exporting them at the size of the print. This will reduce the time required to upload the order, as you would not be sending files larger than needed for the product.
Our printers will render each image at the optimum resolution for the print size. However, this will not improve the quality of lower-resolution files.
File Formats:
JPG
8 bits per channel
Baseline Standard encoding
PNG
8 bits per channel
TIFF
8 bits per channel
No Layers
No alpha channels
Image Compression: LZW
Pixel Order: Interleaved

Recommended File Size:
Digital Cameras measure their resolution in pixels. These are NOT measured per inch, but are a total count of how many pixels were used to capture the entire image. If you take a digital photo at 1600x1200 pixels, the total pixel count of the captured image will be 1,920,000 pixels. Whether you print this 1600x1200 image as a 8"x10" photo or an 16"x20" photo, the original file will still have 1,920,000 pixels.

Photos intended for print should be taken at the highest [pixel] resolution possible for the best print quality. Lower resolution photos printed at larger sizes may stretch the pixels beyond the point where the look clear and sharp. However, many of our customers have great success enlarging their photos 200%-400%. Typically the photo needs start out very high res and well exposed, then it can be enlarged and sharpened in Photoshop or Lightroom. View your files at 100% in an image application such as Photoshop, this will give you an excellent representation of how the file will print.

Preferred Image Resolution:
150 dpi (Maximum: 300 dpi - Minimum: 100 dpi)"

Rick from NY Loc: Sarasota FL

Best comment so far. A troll posts and 5 pages later……………

Edit - the OP was not the troll.

PlymouthWoodworker Loc: Plymouth, MA

You just need to understand the difference between pixels per inch (ppi) and drops per inch (dpi). Each photo has a given number of pixels, and the print size will then dictate the number of pixels per inch in the final print. When you send a print job to the printer, the driver will convert to the native ppi for that printer (generally 300 ppi for Canon and 360 ppi for Epson). The the printer determines how many "dots" of each color ink to "spit" onto each pixel to give it the proper color. That's why printer specs can state, for example, up to 1500 dpi, because it can "spit" up to 5 dots of ink for each pixel at 300 ppi. If you do any sharpening of a photo and send it to the printer at a higher ppi than the printer is expecting, the driver will remove pixels and you may lose some of the sharpening effect. So, before sharpening in the the last step of post processing, you should resize the picture to the final print size (in inches) and the printer's native ppi (usually 300 or 360). After that apply sharpening and send it to the printer. Hope this is useful.

mikeroetex Loc: Lafayette, LA

Heaththiel Loc: Wisconsin

If a pixel appears in a forest and no one is there to see it, does the pixel exist 🙃🙃

CamB Loc: Juneau, Alaska

This is the best and most straight forward post on this whole thread. Good job.

PlymouthWoodworker Loc: Plymouth, MA

Thanks CamB.

Sidwalkastronomy Loc: New Jersey Shore

Dots used to be a candy and now they're making photos

Longshadow Loc: Audubon, PA, United States

joecichjr Loc: Chicago S. Suburbs, Illinois, USA

Thanks so much, Bill, for showing us your house and private lake where you take all of your magnificent shots

BebuLamar

I took a 4x6" print I had printed at Walmart and they used the Fuji Frontier DX-100 printer. Under the 100x microscope I can see there are only dots. The dots is about 1/1000" big and each of the dots is only of 1 out of 6 different colors. Either black, cyan, magenta or yellow or some kind of pink or blue. I tried to take a picture of it but my 50mm lens with the bellow fully extended still can't get the magnification to show the dots. My microscope is a mini one and can not accept a camera.

PlymouthWoodworker Loc: Plymouth, MA

Let me just add for those who send their files out for printing: If you do any sharpening, follow the adivce in my original message. Contact the printing lab and ask what ppi they want. Then resize your picture based on the final print size and the required ppi before applying final sharpening. Then send the file out for printing.

Sidwalkastronomy Loc: New Jersey Shore

Excellent advice