Can hogs see blazing orange color safety vest and hat?
My friend claims he's never seen a hog while deer hunting because he's wearing blazing orange safety vest and hat.
He belives deers can't see it except as a gray tone color but hogs can see it stand out.

What do you say?

Hogs may not have great eye sight but they sure can pickup movements really well.
Had a hog run off when I slowly turned my body and rifle 90 degrees to get a shot on a hog and he was about 80 yards away.

I agree with this. If you stay down wind and move decently slow, you can get really close, and it is fun as hell.

I've been asked 'how did you see that hog with your naked eye' Well I'm glad I learned something over the last decade.
I see damn good at night, and as far as seeing at night I know the hogs see better than me, like 90 percent of the time, they see any movement way better.
I were camo at night, it helps to not look like a dot or stand out.

As mentioned contrast not color comes into play. Same reason blaze orange camo works just like regular camo when hunting deer, they see the contrast and as long as it's broken up it's not much different than the tree's in the background. Pigs have really bad vision so they can't see you at a distance unless you are, as mentioned, contrasted against the rest of the background. I watched a documentary that showed the biologist walking right up to wild hogs simply by walking slowly downwind and breaking up his shape. He did the same thing with a big wood or cardboard (can't remember) cutout of a hog shape. It was the wrong color and had no resemblance to a hog other than the shape and he got within a few feet of them without them seeing anything was wrong. They saw a blurred shape of a hog and to them it was another hog. They can't see worth a damn. As long as they can't smell you or differentiate between you and the background you aren't going to get busted so you can wear hot pink when hunting them as long as the shape is broken up (hmmm...I wonder if they make hot pink camo?).

This hits on the same as " hogs can't see red" argument. They might not see the color red as we do, however they see something. It might be a different color than the actual red, but they know something is there. Much like a color blind person. Just because your color blind doesn't mean your blind. Some animals will run right away when they see you, then some will sit there and look at you for awhile. However, if they see you and catch your scent most of the time there out of there.

Like others have stated they will pick up your movement if they don't catch your scent first. I hunt similar to a couple of the other posters, and at night you can get right up on them in wide open pastures in the middle of the night with nvd's. However, if there is a bright moon out, it's much harder to get on them. You can get so close, but it always seems there's a big boar hog that knows something is not right.

A lot of people have differing experiences and come to different conclusions.

A lot of guys touched on things that I have noticed as well.

When people claim that pigs can't see well, I think we have to put it into relative terms. They don't have the eyesight of deer that will pick you up moving slightly from 500 yards away, but if you feel you see well, you are still probably not seeing as well as a pig.

Years ago when I was still hunting with a red light on my bow that I would flip on when the pigs came in. At first they paid no attention to the light. After about 5 years hogs went from moving away from the light to hauling ass the second I flipped the light on. I tried everything. I even taped the light off with electrical tape to where it probably had less than 1 square inch of lens still shining. The pigs definitely saw that light and eventually started associating it with danger.

The other thing that I noticed, was subtle little things like kicking on my old Nightowl nightvision would scare them off. That was the faint glow of the IR led that was scaring them. At first I thought they saw the IR light, then I realized it was the faint glow that scared them. You have to realize that when you are 10 or 20 yards away, they see everything and don't miss shit.

Another thing I noticed one night, the clouds rolled in before a storm, it became so dark I literally could not see my hand. It was completely pitch black dark. One of those nights you hear about, but seldom ever experience and I had pigs come to my feeder and start feeding. They weren't running into trees on their way in and I didn't hear them hit any when they ran away at full speed either, so they could see way better than me cause I couldn't see shit. That always made an impression on me and I have always taken that into account anytime I was sneaking up on some in the dark. Go slow and use as much cover as possible.

And big boars do seem to have a sixth sense about them, but I'm convinced it just about has to be a faint sound or scent that they can't quite place. I built a shooting house at my favorite spot and an almost airtight box eliminates that sixth sense , but if you open the window too long before shooting, and they get the slightest whiff they will haul ass then too. Of course the thing about bowhunting in close quarters with limited visibility is, you never know what you don't see.

Obviously YMMV to your own experiences.

I agree. They are like TRex. They only see movement.