34
votes
Accepted
Maximum useful resolution for scanning 35mm film
According to Ken Rockwell:
Fuji Velvia 50 is rated to resolve 160 lines per millimeter. This is the finest level of detail it can resolve, at which point its MTF just about hits zero.
Each line will ...
- 26.9k
27
votes
How do I prevent my photos being stolen by the print shop?
To absolutely prevent a print shop from stealing your photos, buy or rent a printer and print the photographs yourself.
This will also require buying appropriate paper. And perhaps color calibration ...
- 4,893
26
votes
How do I prevent my photos being stolen by the print shop?
Use a reputable shop.
A shop with a good reputation, that wishes to keep that reputation (and therefore its customers), will be motivated to behave honestly.
If the trust is broken for some reason, ...
- 748
26
votes
Accepted
Why is CMYK more efficient/beneficial than RGB for performing printing operation on white paper?
Both photographic film and photographic digital imaging chips are sensitive to the three light primary colors. In other words, both record components of the image i.e. red, green and blue.
...
- 38.7k
20
votes
Why is CMYK more efficient/beneficial than RGB for performing printing operation on white paper?
Let me debunk one thing: "RGB and CMY are two different color models."
They are not, they both form part of one RGB-CMY model. Or probably an RYGCBM model.
Ok. That is not entirely true but ...
- 24k
16
votes
How can I print a 3840×2160 pixel image on 4″×6″?
Strange question...
You don't want to crop, you don't want borders, you don't want to stretch the image...but you want to somehow put one rectangle into another rectangle of a different aspect ratio.
...
- 11.7k
16
votes
How do I prevent my photos being stolen by the print shop?
First off, I suspect that you are being influenced by Dunning-Kruger fallacy to even think about such a scenario of your photos being stolen. I am sorry to crush your expectations, but let's get back ...
- 177
15
votes
Accepted
How can I print a 3840×2160 pixel image on 4″×6″?
3840 x 2160 px means an aspect ratio of 16:9 - it is the reduced fraction of the pixel values:
...
- 6,467
14
votes
How were photographs printed in newspapers in 1929?
I was apprenticed to a photoengraving company in 1946.
We used the Colodion or Wet plate process to make halftone negatives and a glass cross line screen. Newspapers used a coarse screen with 55 to ...
- 141
14
votes
Accepted
Where may I find this camera test image?
Interesting question.
Please google "ISO test charts", or "test charts targets" To my knowledge that one is ISO-12233 "Digital Resolution Still Camera Test Chart".
It is ...
- 24k
11
votes
Why is CMYK more efficient/beneficial than RGB for performing printing operation on white paper?
There are two sort of separate issues here. One is RGB vs. CMY. The other is why you add the fourth color, instead of just using CMY (and sometimes, you use half a dozen colors or so, not just four).
...
- 19.3k
9
votes
Is it not ideal to save image as PNG for printing?
Yes, PNG is theoretically better than JPEG in preserving the ultimate image quality, but in practice this is the kind of exactness we don't really see, especially in print, where the physical ...
- 5,045
8
votes
Accepted
A print shop gives me instructions to convert to sRGB instead an ICC profile, is no soft proofing necessary?
TLDR: Choose a print shop that provides ICC profiles.
Soft proofing is an important step for optimal results. If a shop doesn't share its profiles there are two reasons that come to my mind: lack ...
- 1,316
8
votes
How can I get my JPEG images to look the same in print as they are on screen?
When I got the print back it was so dark as to be unsellable. Rather disappointed I contacted the printers and they said I should have used an ND filter.
An ND (neutral density) filter would have ...
- 31.7k
8
votes
My lost grey cat looks black in photos, moreso when printed into flyers. How do I make his fur grey
I think the only thing that can be done where are unable to take the photo again is to post process the photo in photoshop (or similar) to make the blacks more grey.
Ive written a quick answer and ...
- 301
8
votes
Where may I find this camera test image?
See here. Of course it has to be printed correctly to be of any value.
- 20.6k
8
votes
How do I prevent my photos being stolen by the print shop?
Even a small photo lab processes thousands of photos from different people daily. Aside from a quick quality check, they don't even look at a majority of the photos.
All sorts of photos pass by them, ...
- 26.9k
8
votes
Accepted
Is this a reasonable answer to a complaint that my enlargements were not super sharp?
Not really. But there is a grain of truth in it.
What they are saying is that your image had excess resolution and they had to downsample it by about 30%. This is not an extraordinary amount; all but ...
- 1,539
7
votes
Accepted
How to make color darkroom prints?
Wet silver color printing is slow, tedious, and requires trial and error to get the color balance right. I don't miss those days. Even if you want to cling to film for some reason, scanning the film ...
- 17.4k
7
votes
Is 4288 X 2848 pixels an unfriendly ratio for quality printing and framing or am I missing something?
The idea that you will get better prints at exactly 300dpi — where one dot is also one pixel — is a misconception. There may have been a limited time and certain circumstances where it was true, but ...
- 143k
7
votes
Accepted
How unusual would contact-printing be for a portrait studio's commercial output?
It wasn't at all unusual for small, local portrait studios to print using the direct contact method during the time in which Disfarmer worked from about 1915 until his death in 1959. Most small ...
- 175k
7
votes
2018 - Economical, quality home photo printer recommendations
Since they don't print very frequently, they often have the ink-drying-up problem that leads to clogs/poor print quality, which means more maintenance routines that use up even more ink and cost them ...
- 143k
7
votes
Accepted
How big can you print a canon 5d iii Image?
The Canon EOS 5D Mark III has a resolution of 5760 x 3840 pixels, or 22.1 MP. It has a 3:2 (1.5:1) aspect ratio.
A2 sized paper is 16.5 x 23.4 inches (420 x 594 mm). It has a 1.414:1 aspect ratio.
...
- 175k
7
votes
How to develop large dark room prints?
No need for all that, you lay the un-developed print on a plastic drop cloth. Have the developer, stop and fixer in a plastic pail. Using a large brush, such as wallpaper's use to apply wall paste. ...
- 38.7k
7
votes
What steps should I be taking specifically for print when shooting?
I am basing my answer on this
I envision as a book in the end.
So my first recommendation is beyond the technical elements you are asking for.
1. Frame a bit wider than the frame you like.
A printed ...
- 24k
6
votes
Accepted
What do the numbers mean in Canon printer profile names?
Hope this helps - Asked my Canon Rep as I was also interested and this is what he sent me;
The ICC profiles installed for your printer and Canon photo paper appear as follows.
CANON - PRINTER MODEL ...
- 4,877
6
votes
Accepted
Any reason not to set ALL photos to "300dpi"?
You understand the situation (that dpi number does not affect the pixels), and in this situation (before considering actually printing the image), always setting 300 dpi is a good politically correct ...
- 12.9k
6
votes
Accepted
What ambient lighting is appropriate for a room where photos are edited and proofed/printed?
You don't need a dimmer bulb, you just need to disperse it properly so that it is more evenly distributed throughout the room. Rather than placing the bulb where it is shining directly on your monitor,...
- 175k
6
votes
Accepted
Why is my Epson SureColor P600 suddenly printing weird cyan colors?
I'm not sure this question really belongs here, but will try to help as there isn't a printing stack....
As an ex Epson engineer, I can say that you (quite clearly) have no matte black feeding.
...
- 9,050
6
votes
How to calculate average color for some part of picture
A more accurate sampling of the actual average would be in Photoshop, to draw a box around the selected sample (with regular marquee tool), and then use Photoshops averaging filter (menu Filters - ...
- 12.9k
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