Wow, IR reflections on domes are no joke

Mr_D

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I've been using all Dahua turrets so far but picked up a mini-dome for the garage where having a lower profile will keep it out of the way. I also wanted to test it vs a turret for the front door since I have a porch light that will be in frame.

With the IR on in a dark garage, just a small amount of finger prints on the outside of the dome caused a huge loss in contrast and other reflections. I'm guessing some of the reflections came from the white ceiling. I quickly wiped the outside of the dome with my shirt and the image improved, but not completely. I can't imagine out quickly the image quality must degrade in the dirty outdoors.

At the front door, in color mode, I found the mini-dome and turret to handle the porch light in-frame equally well and better than expected, even with a backlit subject. I didn't turn on BLC but there's enough light bouncing off the opposite wall the clearly see anyone standing there.
 

Q™

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Word! And it's been that way for a very long time. Was it not Iago who said?...

Iago - Othello - Act 3 - Scene 3 said:
O, beware, my lord, of Dome IR Reflection!
It is the green-eyed monster, which doth mock
The meat it feeds on.
 
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