(Uber) Whatsit # ............One Hundred!!!!!

[480sparky]

 

[ulrichsd]

looks like ice on a pole/street lamp of some kind

 

[Bitter Jeweler]

Granite?

Pavement?

 

[snowbear]

Sandpaper?
Grinding wheel?
Whet / oilstone?

 

[Forkie]

The striker strip on a matchbox?

 

[480sparky]

Hint for the day: You can't take photos (at least in the traditional sense) without this.

 

[snowbear]

A really, really cruddy lens?
Shutter curtain?

 

[sovietdoc]

Flash powder? Magnesium powder or somethin'

 

[AceCo55]

Silver crystals

 

[sm4him]

the outside surface of a <kinda dirty> old camera?

 

[480sparky]

Today's clue: Many pros, as well as hard-core amateurs, will say this is the most important element in photography..... After light.

 

[StephenGagne]

Silica Powder?

 

[snowbear]

Emulsion?

 

[480sparky]

Tonight's clue:

This substance cares not whether you shoot digital or film.

 

[StephenGagne]

Ground up glass?