Thread: Same edge, same spot, same magnification, different light...

This needs little explanation.
Except for cropping them a little smaller, these pictures have not been processed.

I just want to illustrate that pictures have their own peculiar way of telling a truth.

I think exact reason why we see such a differences actually not light but angle you put light to the blade.What happens every time you change light you don't put exact angle to the blade that is why we see the different edge.Give me a big favor and to this use that lovely microscope and same light but change angles slowly(light may be have to go up down etc) to different angles make picture and let us know how wrong or right i was.

Am I seeing a Double Bevel????

+1 on the double bevel. I'd like to know how it was honed. Nice pics!

Chris L

Looks like the bevel that is the result of building up the spine with layers of tape for the final finishing passes. As far as I know, Tim Zowada came up with this method to emulate the edge found on a Feather blade or a DE.

I used to do a lot of microscopy work (and have a lot more to do soon) and it's amazing what a little change in the parameters can to to your interpretation of what you see way down there. Those are great photos to show the difference the light angle can make!

Originally Posted by gssixgun

Am I seeing a Double Bevel????

Yes, it's an edge with a secondary bevel. I've been experimenting with it quite a bit lately. I think it's great for comparing the capabilities of various hones, because the very edge is only formed by the last hone in the progression. (There's lot to be said about this topic, but a bit besides the scope of this thread)

Originally Posted by Utopian

I used to do a lot of microscopy work (and have a lot more to do soon) and it's amazing what a little change in the parameters can to to your interpretation of what you see way down there. Those are great photos to show the difference the light angle can make!

That was my point exactly. The angle of the light hitting the subject makes tremendous difference, even within very few degrees of variation. All pictures are lit by the same light source, only with slightly different angles. The razor itself was not touched. Magnification is 50X, by the way.

For those who wonder, the scratches running in opposite directions on the second picture, are actually very shallow strop marks.

Bart.

Same edge, same spot, same magnification, different light...
Bart

All pictures are lit by the same light source, only with slightly different angles



Go figure it out now?

What was the purpose of your message?

If I may be so forward, I believe it was to show how different your pictures for edge analysis can be when the light is hitting th subject at different angles. This is a fundamental of photography.

First sentences how he started his threat and second one how he did explain ?
at first "different light "
next "same light"
what he was trying to do ????
confuse us or to get help from us?