In the Ear? Really???

[scrmblr1982cj8]

So much for hog hunting tonight...

 

[Double Naught Spy]

2NutSpy,

i tested the thor pretty good last night before the moon came up. i bet i saw a dozen coyotes with it that i never saw with the pvs14 or the d740, even with an ir light. granted they were in tall grass and weeds, but it makes me wonder what else i've been missing.

then i checked a pivot system with the nv. no hogs. i checked with the thor and two were at the center but the pivot light blinded that area from my vision. i'm pretty impressed with it.

i understand the relationship between obj size, magnification and exit pupil diameter with day scopes. what does a larger obj lens on a thermal do?

2NutSpy? I guess that is better than 1NutSpy, LOL. I see you have had your thermal epiphany! Congrats, my son!

As with regular cameras, the larger objective lens allows for the gathering of a larger volume of wavelengths. With regular optics, a larger lens gathers more light and with a larger thermal lens, it gathers more heat energy. In both cases (everything else being equal), the larger lens means a better quality image, sharper, more detailed. The big problem with thermal is that the lenses cost so much, sometimes upwards or over half the cost of the whole scope.

So much for hog hunting tonight...

I think your targets may float away.

 

[djones]

I see you have had your thermal epiphany!

i had to look that up in the uber dictionary...

epiphany: a smart-sounding word for realizing you've been practically retarded for quite some time.

wow. is packratt an angry bird sponsor? did he put you up to that?


double check this… when you digitally zoom to 2x the resolution is reduced from say 640 x 480 to 320 x 240. but if I use the day scope to zoom to 2x, I'm still looking at a 640 x 480 image. why would the digital zoom produce the better view?

 

[Double Naught Spy]

Yes, digitally zooming to 2x (note: several brands zoom by doubling the zoom from 1x to 2x, to 4x to 8x). reduces the resolution by 3/4. Using your example of 640x480 to 320x240, you aren't reducing resolution by 1/2 as you are dealing with area dimensions. Basically, you are going from 307200 pixels to 76800 pixels.

Going to 4x reduces it by 3/4 again, down to 19200 pixels. 8x gets you only 4800 pixels.

Why would digital zoom produce a better view? You won't get much of a 'better' view with such low resolution when you zoom in, but you can get some improvement. The image may appear to improve until which time you can visually detect pixel blocks or pixelation. In my experience, that starts to happen under the 320x240 where it becomes readily apparent.

However, 'better' is a matter of opinion. The image may not be better in terms of being able to identify the target, but if the target is identified, zooming can be very helpful in making it easier to place a shot on a specific part of the target. Unzoomed, your target at 200 yards may be largely covered by the crosshairs for example. Zooming allows the target view to grow in size while the crosshairs don't. So instead of aiming at the front end of the body, you can aim at the shoulder area, or maybe with more zoom aim just forward or behind the shoulder.

Daylight scope optics do not zoom digitally, but optically. You see the actual image and not an electronically rendered image. They use multiple lenses to make this happen and this is something not readily doable with thermal technology right now. As it was explained to me, if you want to zoom optically with digital, you need a different lens for the job (think military thermal gear on aircraft). If you start trying to use multiple germanium lenses as with a daylight scope and which would be needed for continuous zoom, I am told that the image will distort. As such, rifle scopes and such have a fixed optical resolution and only zoom digitally.

 

[djones]

what i meant was...

using a thermal clip on at 3x and no digital zoom in front of a day scope, and setting the day scope to 2x

vs

a 3x stand alone thermal digitally magnified by 2x.

the standalone thermal would be at 320x240 where as the clip on would still be at 640x480. seems the clip on has the advantage???

 

[Double Naught Spy]

I dunno. I think it is a wash. When you zoom a daylight scope to look at the display screen of a clip-on, you are only sampling a portion of the image, a reduced number of pixels.

 

[Packrat 6]

2NutSpy,

i tested the thor pretty good last night before the moon came up. i bet i saw a dozen coyotes with it that i never saw with the pvs14 or the d740, even with an ir light. granted they were in tall grass and weeds, but it makes me wonder what else i've been missing.

then i checked a pivot system with the nv. no hogs. i checked with the thor and two were at the center but the pivot light blinded that area from my vision. i'm pretty impressed with it.

i understand the relationship between obj size, magnification and exit pupil diameter with day scopes. what does a larger obj lens on a thermal do?

2NutSpy? I guess that is better than 1NutSpy, LOL. I see you have had your thermal epiphany! Congrats, my son!

DNS.....My I infer from your statement that "Son" in relation to djones was an abbreviation?

djones, while I am not a Angry Bird sponsor, it's on my bucket list!

Packrat

 

[Packrat 6]

Went to the doctor yesterday for my annual checkup. When taking my vitals, I noticed that I had lost a 1/2" in height. When I asked the Dr. about it, he said it was a normal result of disc compression and it happened to everyone as they grew older.

Since I've never been a Jolly Green Giant at 5'-8" so I asked if getting one of those things you see advertised on TV where you lock your ankles and hang upside down would help. He told me that maybe I should try that and to put about 25 pounds of lead weight bags around my neck while hanging upside down.

Still trying to figure out if he was joking!

Packrat

 

[Double Naught Spy]

I had a buddy that does inversion therapy. He gains about 3/4" for a few hours before things slowly recompress again. So, it would be temporary.

 

[Packrat 6]

I had a buddy that does inversion therapy. He gains about 3/4" for a few hours before things slowly recompress again. So, it would be temporary.

Darn, Darn, Darn......Well, was just a thought, but still wondering about my Doctor....He's been kind of strange since while he was out of the room, I filled the earpieces of his stethoscope with KY Jelly or something similar that was laying over on the cabinet that he used for his prostrate exams. When he couldn't hear anything while placing around my chest, I told him he was doing it all wrong and took the part that he places against your chest, pulled the metal end off and put the tube in my mouth and blew real hard.

Head nurse said it took about half an hour and half a box of Q-tips to get whatever it was out of his ears!

This was in retaliation for him, during a colonoscopy, using a hand held bulb inflater to inflate my lower intestines so he could check out the walls for cancer. He was supposed to relieve the pressure before I left the room, but instead, pulled the tube out real quick so I was left with a huge amount of air in my lower intestine. Every step I took down the hall and across the lobby was accented by very loud rude sounds and I got a lot of horrified looks from the other patients. Very embarrassing.

Next year I'm going to have someone else check my prostrate.

Thanks, anyway DNS.

Packrat

 

[scrmblr1982cj8]

Anyone hunt this weekend? I've been rained out since Tuesday. We have a state of emergency, a 7pm curfew, and schools are closed tomorrow due to the flooding.

I'm bored...

 

[scrmblr1982cj8]

I got my pickup back this afternoon. I inherited the truck from my grandfather. He was born in 1917 and lived through the Great Depression, which caused him to be very "tight" with his money. This was great, except when it came to preventative maintenance on his truck.

I got new belts since the old ones were screaming. The hogs won't be able to hear me now! That is, whenever the flood waters receed enough to allow me access to my hunting spot.

My wife showed me something on the internet that stated that SC received 11 trillion gallons of water during our wet spell over the last week. For a comparison, apparently the Everglades only hold 1 trillion gallons of water.

I've heard from a few of the people I know that there are several large groups of hogs on high ground out in the swamps. Too bad the I can't get there!

 

[Packrat 6]

I've heard from a few of the people I know that there are several large groups of hogs on high ground out in the swamps. Too bad the I can't get there!

Heck scrmblr, there must be a few people from Florida reading this, so who out there has an Airboat? Scrmblr's got the hogs, you've got an airboat, seems like a perfect partnership to me! Besides, if people have seen them on high ground, that is close enough to shoot! Adjust that scope!

BTW, have always been curious if an airboat would work in deep snow? Anyone tried it?

I know djones uses his truck like a airboat in the mud, but he also has a open account with the local wrecking company to come pull him out. He's spent so much time in the mud, with all the rain that Texas got this year, that he has installed skid plates in his underwear. Course that may be for something else.......

I know the hovercraft works in snow, but always wondered about an airboat. If it would work, am going to accept a sales position for them in Alaska......Thought I was going to get to go earlier in the thread, but after djones collected all the money everyone donated to get me to move to the Klondike in Canada, he went out and bought a new Hot water tank for the remodeled chicken coop he lives in, then whined about having to install it........................

Got me a new truck today, will post a picture later.

Packrat

 

[djones]

been raining here quite a bit too. got out yesterday to sight in my buddy's thermal. i'm going to try to kill something with it tonight, but it's on a blackout so we'll see.

also shot a barrett in 6.5 creed. it's an impressive shooter.