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Polarizer On And Off,2 Pair Out Of Four Pair Led's Off On Dino-Lite

 
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Author Previous TopicReplies: 4 / Views: 243Next Topic  
Valued Member

Canada
115 Posts
 Posted 06/01/2020  3:47 pm Show Profile   Bookmark this topic Add Huck50 to your friends list Get a Link to this Message
Polarizer On...Brightness of 4,maximum of 6

Polarizer Off...Brightness of 4, maximum of 6

H50
Dino-Lite AF4115ZT usb microscope
Edited by Huck50
06/02/2020 09:13 am
Pillar of the Community
United States
1623 Posts
 Posted 06/01/2020  5:25 pm  Show Profile   Bookmark this reply Add Bump111 to your friends list Get a Link to this Reply
Amazing that polarizing the light would have that drastic an effect. Does it look any different naked eye?
Bedrock of the Community
Australia
17075 Posts
 Posted 06/01/2020  9:20 pm  Show Profile   Bookmark this reply Add sel_69l to your friends list Get a Link to this Reply
Take the plastic lenses out of polarizing sunglasses.
Cross polarizing lenses block all light.
Worth experimenting with for coin photography.
Valued Member
Canada
115 Posts
 Posted 06/02/2020  06:30 am  Show Profile   Bookmark this reply Add Huck50 to your friends list Get a Link to this Reply
Bump111..."Amazing that polarizing the light would have that drastic an effect. Does it look any different naked eye?"
Not that I can see.H50
Dino-Lite AF4115ZT usb microscope
New Member
Canada
44 Posts
 Posted 06/02/2020  07:34 am  Show Profile   Bookmark this reply Add SP67 to your friends list Get a Link to this Reply
Polarizer has no effect on metal object at normal angle of incidence, since metal surface maintains the polarization state of the incident light.

The only effect of the polarizer on your test is to cut light intensity by at least 50%.
This is why your second image is saturated.
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