checko 180 Posted July 9, 2013 I have a Vortex Spark and wondering if anyone had a similar optic with a killflash. I was thinking about getting it to cut down the daytime glare, not so much for the anti reflection. I've never looked through one so I don't know if it interferes with sight picture at all. Quote Share this post Link to post Share on other sites
JackDaWack 2,895 Posted July 9, 2013 By design they do cut down on the light received, but they are on the front of the optic... not sure if they will actually do anything for the glare on the rear lens... I'm not entirely sure, but i believe glare is a principle of refracted light, its what the lens is NOT allowing to pass through. Also, not all kill flashes are made the same, some have large/small thick/thin honeycombs, This is where high quality anti-glare coatings are helpful. This is a Aimpoint M4 You could also try polarized sunglasses, not sure if would cut down on the glare thou Quote Share this post Link to post Share on other sites
checko 180 Posted July 9, 2013 By design they do cut down on the light received, but they are on the front of the optic... not sure if they will actually do anything for the glare on the rear lens... I'm not entirely sure, but i believe glare is a principle of refracted light, its what the lens is NOT allowing to pass through. Also, not all kill flashes are made the same, some have large/small thick/thin honeycombs, This is where high quality anti-glare coatings are helpful. This is a Aimpoint M4 You could also try polarized sunglasses, not sure if would cut down on the glare thou Nice pic. I do think its a little misleading because of how close the pouch is behind it. I feel like it would be a little more transparent in an open landscape. My main concern was actually just the washing out of the dot. I may have worded my initial post a bit ambiguously. The sparc does have an adjustable brightness setting but would this help in changing from facing away to facing sun without messing with the settings? Quote Share this post Link to post Share on other sites
raz-0 1,259 Posted July 9, 2013 You could also try polarized sunglasses, not sure if would cut down on the glare thou Polarized sunglasses usually make the dot go away. At least from certain angles. It interacts with the band pass coatings to reduce specific spectrums IIRC. Quote Share this post Link to post Share on other sites
JackDaWack 2,895 Posted July 9, 2013 I don't have issues with my sunglasses, and i looked around before trying it out and most people didn't have to much of an issue with it.. I had a pretty hard time finding a decent picture of one with a good sight picture, but yes focusing through the kill flash will blurr it. Think of it like a window screen, if you focus on it close up its hard to see out of, but we can look right through it at longer focus distances. This should cut down on the light washing out the dot, but it's inevitable that the dot will need adjustment from extremes. It is a type of shade device that allows light in perpendicularly, so it puts the lens in the shade more often. Think of it like a semi cloudy day, the shade rolls in the dot gets brighter, when it rolls out the dot gets dimmer, so what is the lowest essential setting? Quote Share this post Link to post Share on other sites
checko 180 Posted July 9, 2013 I don't have issues with my sunglasses, and i looked around before trying it out and most people didn't have to much of an issue with it.. I had a pretty hard time finding a decent picture of one with a good sight picture, but yes focusing through the kill flash will blurr it. Think of it like a window screen, if you focus on it close up its hard to see out of, but we can look right through it at longer focus distances. I seen one with an acog but that's a magnified optic so its different I'm sure Quote Share this post Link to post Share on other sites
bhunted 887 Posted July 9, 2013 A bit old school, but good to experiment. Get a hunk of a women's stocking and rubber band. Sent from John's iPad 2 via Tapatalk HD Typos courtesy Apple... Quote Share this post Link to post Share on other sites
raz-0 1,259 Posted July 10, 2013 I don't have issues with my sunglasses, and i looked around before trying it out and most people didn't have to much of an issue with it.. It apparently optic specific. Holographic sights like the eotech HAVE to have polarizer, and polarized sunglasses all ahve the same orientation of the polarization. Eotech tries to make the interference minimal, although i suspect you can still get some at wacky angles. The bushnell versions of the holosight had issues. Some red dots come with a polarizing element to improve contrast. HEck some apparantly came with what amounts to a circular polarizing filter on the front so you could reduce light to your liking. So it does vary. Quote Share this post Link to post Share on other sites
JackDaWack 2,895 Posted July 10, 2013 I'm gonna have to try some different orientations with my Eotech, i know polarization is dependent on the orientation of the lens, not so much the angle. People can inverse gauge cluster colors on bikes buy simply replacing the polarization film and turning the new film on the lcd screen until you get the desired result. So turning the sight 90 degrees might cause an issue but i need to check that out. I actually didn't realize there was a polarizing element on the sight, and if they differ then yea, definitely going to vary. I know companies like Oakly have been improving their polarized lenses over the years, so not all sunglasses will perform the same, too. Quote Share this post Link to post Share on other sites
JT Custom Guns 959 Posted July 12, 2013 if your interested in trying a KillFlash on your optic - I get mine here: http://www.ebay.com/sch/honeygrids/m.html?_nkw=&_armrs=1&_from=&_ipg=&_trksid=p3686 Very good quality and great customer service. if you give them a desired measurement, they will custom cut you a KF and I suggest starting out wit ha thinner wafer, as the thicker the wafer, the more light that is shaded............. Good luck! Quote Share this post Link to post Share on other sites
checko 180 Posted July 12, 2013 Thats cool man. Thanks! Quote Share this post Link to post Share on other sites