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Posted: 5/28/2012 7:29:53 AM EDT
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I am a noob to NV and want to know if this is normal.
Took my new NEPVS-14 from TNVC out for some testing with a IR LDI LAS/TAC 2 .1mw laser last night. The bloom is really overwhelming. At 50 yards, the bloom is 4' (yes, feet) in diameter and the hot spot of the laser completely covers a 9" plate. At 25 yards, the bloom is roughly half the size it was at 50 yards, but very bright and completely unusable. At longer ranges, 100-150 yards, I get little to no bloom at all and a nice laser spot. At closer ranges, how are people even using an IR laser for aiming? It was like looking at a very tight flashlight beam that completely blocked out what I was trying to aim at. I thought maybe it was a problem with the laser so I tried a regular visible red pistol laser and did a side by side comparison to the IR laser. I got the same size bloom, but the hot spot on the red laser was a little brighter. Are IR lasers not meant to be used at closer distances? Am I doing something wrong? Adjusting the gain made no difference. As it is, the laser is completely useless for anything less than minute of trash can at 50 yards. If the laser I have blooms this much, wouldn't the higher powered LDI DBAL be even worse? |
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I know you said you already did it, but verify that you have turned down the gain on your NE PVS-14. It really sounds like you have it turned up too high. I've used the exact same IR laser setup at 7 yards without alot of bloom (certainly not what you are describing). Even the more powerful 0.7mw OTAL IR I'm using on my rifle doesn't do it to this degree. Both are completely useable in close to 7' and out to 200 yards.
Also, you might try calling Vic for some insight. |
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Quoted:
I am a noob to NV and want to know if this is normal. Took my new NEPVS-14 from TNVC out for some testing with a IR LDI LAS/TAC 2 .1mw laser last night. The bloom is really overwhelming. At 50 yards, the bloom is 4' (yes, feet) in diameter and the hot spot of the laser completely covers a 9" plate. At 25 yards, the bloom is roughly half the size it was at 50 yards, but very bright and completely unusable. At longer ranges, 100-150 yards, I get little to no bloom at all and a nice laser spot. At closer ranges, how are people even using an IR laser for aiming? It was like looking at a very tight flashlight beam that completely blocked out what I was trying to aim at. I thought maybe it was a problem with the laser so I tried a regular visible red pistol laser and did a side by side comparison to the IR laser. I got the same size bloom, but the hot spot on the red laser was a little brighter. Are IR lasers not meant to be used at closer distances? Am I doing something wrong? Adjusting the gain made no difference. As it is, the laser is completely useless for anything less than minute of trash can at 50 yards. If the laser I have blooms this much, wouldn't the higher powered LDI DBAL be even worse? Something does not seem right here. No one has ever reported this type of bloom, especially with low power of .1mW designed into these diodes. Give me an email victor @ tnvc dot com. Vic |
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Quoted:
Quoted:
I am a noob to NV and want to know if this is normal. Took my new NEPVS-14 from TNVC out for some testing with a IR LDI LAS/TAC 2 .1mw laser last night. The bloom is really overwhelming. At 50 yards, the bloom is 4' (yes, feet) in diameter and the hot spot of the laser completely covers a 9" plate. At 25 yards, the bloom is roughly half the size it was at 50 yards, but very bright and completely unusable. At longer ranges, 100-150 yards, I get little to no bloom at all and a nice laser spot. At closer ranges, how are people even using an IR laser for aiming? It was like looking at a very tight flashlight beam that completely blocked out what I was trying to aim at. I thought maybe it was a problem with the laser so I tried a regular visible red pistol laser and did a side by side comparison to the IR laser. I got the same size bloom, but the hot spot on the red laser was a little brighter. Are IR lasers not meant to be used at closer distances? Am I doing something wrong? Adjusting the gain made no difference. As it is, the laser is completely useless for anything less than minute of trash can at 50 yards. If the laser I have blooms this much, wouldn't the higher powered LDI DBAL be even worse? Something does not seem right here. No one has ever reported this type of bloom, especially with low power of .1mW designed into these diodes. Give me an email victor @ tnvc dot com. Vic Email sent |
Here is my LDI LAS/TAC 2 IR 0.1mw laser mounted on my rifle compared to a LDI DBAL-I2 0.7mW IR laser mounted on the same rifle:
Here they both are on a pine tree at 30 yard through the PVS-14, too much bloom to differentate them, but the DBAL 0.7mW is on top: 
Here they both are @ 175 yards, the DBAL-I2 0.7mW is on top: 
Here they both are at 175 yards with a 500mW IR Illuminator flashlight shining from the other side of my rail (DBAL-I2 on top): 
Without any IR Illuminator, they both bloom pretty good close up, with IR Illum it is not a problem though.... |
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Quoted:
Here is my LDI LAS/TAC 2 IR 0.1mw laser mounted on my rifle compared to a LDI DBAL-I2 0.7mW IR laser mounted on the same rifle: http://www.phossil.com/thom/Night%20Vision/LASTAC%202%20IR%20Pistol%20Laser/LASTAC%202%20IR%20Pistol%20Side.jpg Here they both are on a pine tree at 30 yard through the PVS-14, too much bloom to differentate them, but the DBAL 0.7mW is on %20DBAL%20I2%2030%20yards.jpg]http://www.phossil.com/thom/Night%20Vision/LASTAC%202%20IR%20Pistol%20Laser/LASTAC2%20&%20DBAL%20I2%2030%20yards.jpg[/url] Here they both are @ 175 yards, the DBAL-I2 0.7mW is on %20DBAL%20I2%20175%20yards.jpg]http://www.phossil.com/thom/Night%20Vision/LASTAC%202%20IR%20Pistol%20Laser/LASTAC2%20&%20DBAL%20I2%20175%20yards.jpg[/url] Here they both are at 175 yards with a 500mW IR Illuminator flashlight shining from the other side of my rail (DBAL-I2 on top): http://www.phossil.com/thom/Night%20Vision/LASTAC%202%20IR%20Pistol%20Laser/LASTAC2%20&%20DBAL%20I2%20IR%20Illuminator%20175%20yards.jpg Without any IR Illuminator, they both bloom pretty close up, with IR Illum it is not a problem though.... Yours is similar to what mine looks like at longer distances but on mine the bloom up close is worse. Yours looks pretty bad as well at the 30 yard distance though. The hot spot from both lasers in your 30 yard photo looks like what my LAS/TAC 2 looks like by itself, but the overall bloomed brightened area is larger. A 9" plate is completely covered and washed out by my LAS/TAC 2 laser at 50 yards and as you approach the outside edges of the bloom, you can start to see detail, but the actual edge of it is almost 4' in diameter. As a targeting device, the laser is useless at that distance unless a person is happy with torso sized accuracy. And even then, I would be guessing as I would just have to center the bright area over the target and hope for the best. I am fortunate in that I have a range set up at my home and I know the distances to my various targets. My 4" and 6" spinner plates are completely covered somewhere underneath the bloom when I try to aim at them from the 50 yard line. I have not tried using the laser and a IR illuminator both at the same time. I only have a handheld Surefire V2. Maybe a weapon mounted illuminator is needed to make the laser work and not bloom? That would seem odd to me though as I have plenty of light to see my target at that distance with the NEPVS-14 without an illuminator. I do not want to make this post sound like the parts I got from TNVC are bad. It is possible I just don't know what I am doing, or that I am seeing something that is normal. Since I am new to all this, I appreciate everyones input. Edit to add: Does it sound normal for my standard pistol red visible laser to be nearly the same brightness when viewed through my NEPVS-14 as the LDI LAS/TAC 2? |
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