6
votes
Is there a way I can scan an A4 photo at 4800 dpi?
Oh my. Why on earth would you need to scan something at 4800 ppi?
That would give you a file of 39840x56160 or a 2,237 Megapixels... a really pro normal digital shoot has rougly 80 to 100 Megapixels (...
- 25.2k
6
votes
Accepted
Different result between scanning in Epson's "color negative film" mode and scanning in positive -> invert curve in post?
Scanning handles removing the overall orange mask in color negative film.
Scanning as positive, and then postprocessing invert does not remove it, inversion simply turns that orange mask to a deep ...
- 12.9k
4
votes
Scanners with large depth-of-field?
When I started in graphic design back in the mid 90s, epson was my printer and scanner of choice. Outstanding results up to 13 x 19. Related to this series of Q&A, I purchased at considerable cost ...
- 41
4
votes
Scanners with large depth-of-field?
You are correct that older scanners are more likely to have a larger DoF, this is because many "old" scanners you can find secondhand are going to have CCD scanning technology which has been phased ...
- 141
4
votes
How good are sub $100 no-name brand scanners?
The major quality-determining components of film scanners are similar to those of camera systems – lenses and sensors. Better components are more expensive. Keep in mind that the "scanners" you're ...
- 27k
4
votes
Epson Scan 2 Not Showing Transparency Option for Film Scanning
I got the idea to delete the scanner from "Printers and Scanners" and re-add it. It reloaded the driver and I think it was a newer version of the driver. Anyway, it allowed the "...
- 81
4
votes
Accepted
How do I keep my paper perfectly flat on flatbed scanner?
I would suggest a book or two that are bigger than the sheet of paper. You won't be able to close the lid, but that shouldn't be an issue - the scanner will still scan. Obviously the glass is fragile ...
- 5,158
4
votes
Hardware for scanning diapostives or negatives using flatbed scanner?
Flatbed scanners with film scanning capability have not completely disappeared from the market. You are correct, scanning film requires the film to be backlit. So scanners with the capability have an ...
- 12.6k
3
votes
How good are sub $100 no-name brand scanners?
You will be much happier if scanning slides with it than if scanning color negatives.
This inexpensive type will have a tiny compact-camera style sensor and an inexpensive lens (whereas a DSLR camera ...
- 12.9k
3
votes
Accepted
What quality can be expected from a flatbed scanner and will a more expensive one be better?
Is this normal?
It might be "normal" in the sense that your hardware isn't broken, but you'll very likely get a better result with better equipment.
Am I overthinking this and these "defects" are ...
- 31.7k
3
votes
Accepted
Scanner accuracy
A household flatbed scanner head doesn't have a CCD the full width of the scan. (I suspect, most of them don't). Instead, it has a fairly wide angle lens and a narrow mirror (or two) which ...
- 1,549
2
votes
Best option for scanning a large volume of slides
I have 10,000 slides. So after doing the math on the effort to scan these I bought a Nikon Super Coolscan 4000 ED for about $1500.
The Nikon has an extension allowing for about 40-50 slides to do ...
- 331
2
votes
Scanners with large depth-of-field?
The Canoscan 5600F has a great depth of focus and is relatively inexpensive. I use it for scanning circuit boards populated with components.
- 21
2
votes
Scanners with large depth-of-field?
The Fujitsu SV600 overhead scanner has close to 2" DOF. BUT it is really unstable with scan head (where the weight is) about 18" above the base - about 4" x 8" (and weighing almost nothing). I have ...
- 21
2
votes
Why is the scanner speckling the images?
This is known as a moire pattern, and it is a result of the source image being composed of a regular dot pattern in a grid - called "halftoning".
The grid of the dots in the original image is ...
- 13.6k
2
votes
What's the best way to scan a 1"x1.25" BW photo for enlarging?
Normally, the idea is that to print double size, you scan at 600 dpi and print at 300 dpi (for 2x).
Or to print triple size, you scan at 900 dpi, and print at 300 dpi (for 3x).
Anyway, that is the ...
- 12.9k
2
votes
Accepted
How to Fix (when needed) Scanner "Large Area Spatial Crosstalk"
UPDATED
The program has been updated to work with a range of scanner geometries and is no longer limited to the Epson V850. This is accomplished by creating a custom scanner reflection matrix ...
- 1,217
2
votes
What could cause vertical lines in scanned photos?
Many scanners have a white calibration strip to calibrate the sensor before scanning. Dirt on the strip results in vertical lines. Usually, the dirt got there during maintenance or transport.
See ...
- 783
2
votes
What could cause vertical lines in scanned photos?
I also suspect that there is something inside your scanner interfering with scans.
Since the defect follows the direction of the scan, the problem is probably located on the scanning unit (not the ...
- 27k
2
votes
Accepted
How can I protect scanner glass for scanography while preserving depth of field and avoiding artifacts?
There have been some years since I used a scanner. But I would probably buy one 3mm glass, sand the edges to smooth them round and use it if I am scanning rocks. When scanning other objects and need ...
- 25.2k
2
votes
Epson Scan 2 Not Showing Transparency Option for Film Scanning
In a comment to the video linked in the question, I wrote down my fix, but here it is.
For those who have an issue with the transparency option, I just fixed it for myself. I have installed the ...
- 21
2
votes
How good are sub $100 no-name brand scanners?
The results you will get are simply very bad.
Pro-am scanners don’t go below $900 and lately you will have to shell another $200 to get the license that allows the full functionality of the software....
- 468
2
votes
Epson Scan 2 Not Showing Transparency Option for Film Scanning
Another reason for this to happen, as I found out today, could be the connector that goes from the cover to the base unit getting loose. If the scanner cannot sense the connected cover, which contains ...
- 121
2
votes
Profiling a scanner: What does the Media White Point stand for in an ICC profile?
Ignore the Media White Point in Scanner Profiles
I want to profile my scanner using an IT8.7/2 chart. Analyzing the ICC profile I generated it shows that the Media White Point is close to D65 ...
- 1,217
2
votes
Would a professional restorer be able to do a better job restoring a print if he were to scan the print at 2400 ppi vs 1200 ppi?
There will be minimal benefit from scanning prints at 2400dpi, as opposed to 1200dpi. Most prints do not benefit from being scanned at resolutions higher than about 200-300 dpi. Reasons to use higher ...
- 27k
2
votes
Hardware for scanning diapostives or negatives using flatbed scanner?
Photographing negatives with a digital camera is an alternative to a flatbed scanner. For on screen use, a even a modern smart device camera may be good enough.
Because negatives and slides modulate ...
- 4,956
2
votes
Two calibrated flatbed scanners with different reading on the same color, where is the problem coming from?
If you are getting the same readings from the same colors on authentic IT8 calibration charts, then the problem is likely something to do with the "paint we both have" and not the scanners.
...
- 18.8k
1
vote
Epson Scan 2 Not Showing Transparency Option for Film Scanning
I had to reload Scan 2 software, restart the computer (macOS 10.15.6), add the scanner to Mac preferences, unplug the scanner, etc - at least two times, and in various sequences, then magically "...
- 11
1
vote
What could cause vertical lines in scanned photos?
If you get the glass too wet along the top edge, liquid will seep under the plastic and get on the white strip, and that will cause the dark banding. SO if you, like me, experience this after ...
- 11
1
vote
Accepted
Archival Scanning: Calibrating Scanner
To be clear, the Q-60 (a.k.a. IT8) is used to create a color profile of your scanner, not to calibrate the scanner. The scanner should calibrate itself on startup.
Also, this will only provide a "...
- 1,057
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