Thread:PikovajaDama/@comment-6716431-20171022120518/@comment-16241899-20171024165358

Because you can't see much more at 200 or even 250px either. To really see details you have to enlargen to full size, but the thumbnail on the page  is easier on the eye in the current size than at 250. And I chose a more general pic instead of, say, a cutout of only the table because the book is not about the lenses on the table but heretical items in general, and I think the chart in the background represents that quite well.