Howtek Scans - bigger files when converting from tif to jpg in comparison to V850

For several weeks I have a Howtek scanner and am very happy so far.

But what I noticed:
If I convert on Lightroom my processed TIF files to JPG (with a fixed quality level of 90% without resizing) they are significantly bigger in comparison to the converted Epson scans at the same image size.

For example:
* A color negative scan (1x Epson V850, 1x Howtek 4500), TIF-File, resized to nearly 6200 x 5000 px
* Conversion to JPG via Lightroom, no resizing, quality level = 90%, sRGB
* Epson scan conversion results to a 15MB JPG
* Howtek scan conversion results to a 45MB JPG

Any ideas?

Miccy.

jpeg compression depends on the detail in the image, the more detail the less compression you gets.

"Limit file size to xxxxK" for smaller MB and "limit file to xxxxxdpi on the long edge" that helps make most files even.

@monsta - yes you are right the Howtek shows more details - even at 2.000 dpi, which is the nearly optical limit of the Epson scanner.
@StoneNYC - thanks for the tip - yes, that works.