my photos are dark now

[tonytong]

There are differences..... I have marked in red the biggest difference... FLASH being the biggest difference of all ( I would strongly suggest Reading Your Manual, and doing some research on the exposure triangle).

What do you mean? How do I adjust the exposure triangle?

I will let someone else explain to you why the equipment you have is not optimal for what you are trying to do... although it could be done, with proper lighting and a little knowledge!

Actually, I am getting the job done. I've scanned over 500 books so far and I can get about 99% of the letters correct. To fix the remaining 1% I would need better OCR software.

I also noticed you never replied back to your previous thread need software to change 100s of images quickly | Photography Forum

That's because the software they recommended was too expensive and I decided that it probably wouldn't improve things much anyway.

I agree, all the ocr software can't be 100% accurate.

 

[KmH]

I remember 2013.

 

[petrochemist]

Depending on the use of your copies it may be permissible under copyright - there are specific exemptions, but I don't think they allow the wholesale copying of the entire work!

The fact that the book only sells 1000 copies actually makes the sale of each copy printed MORE important to the publisher not less. The effort of researching / writing / editing / layout etc. does not get less than when 10 million copies are printed, it's only the cost of printing / binding / distributing that increases with more copies.
The fixed costs must be covered by the sale of the book before it brings in a return, you'll often find such highly specialised books sell for hundreds or even thousands per copy when new just so as to recoup the initial costs. If only a dozen people who would have brought the book copy it instead that could be enough to prevent it making a worthwhile profit - no second edition is bothered with...

 

[KmH]

Actually, there are no specific exemptions in the US Copyright Fair Use Doctrine.

More Information on Fair Use| U.S. Copyright Office
. . . Section 107 of the Copyright Act provides the statutory framework for determining whether something is a fair use and identifies certain types of uses—such as criticism, comment, news reporting, teaching, scholarship, and research—as examples of activities that may qualify as fair use. . .

. . . Courts evaluate fair use claims on a case-by-case basis, and the outcome of any given case depends on a fact-specific inquiry. This means that there is no formula to ensure that a predetermined percentage or amount of a work—or specific number of words, lines, pages, copies—may be used without permission.[/quote ]