Also observe the sap on the buds and stem.

Moderators: rjlittlefield, ChrisR, Chris S., Pau
True, at first blush. So what you do in that case is to use the subject itself to transfer measurements between images.Stanley wrote:However, if I use auto focus, then I may very well end up even slightly changing my distance. Then the scale would be different and I would not be able to overlay the two images, right?
On the business of glare and rulers the crime scene rulers are matte finish and come in several shades, at least the ones I found were like that. I keep a few of each shade in my kit. Here's a supplier:Stanley wrote: Indeed, using rulers does get in the way of my photographs. There is the DOF issue, and my rulers set off horrible glare.
It was a couple years ago I last ordered, but that appears to be the same as what I ordered. I also ordered one of their right angle rulers, but that's not seen much use. At the time I ordered a fair supply so it will be a long time, if ever before I need more.Stanley wrote: 6" Vinyl Ruler 10-Count (05145, 05150, 05146, 05142, 09242, 05160, 05220)