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Posted: 11/27/2013 11:40:09 AM EDT
[Last Edit: 11/27/2013 11:43:48 AM EDT by tkp401119]
My quest for the perfect night vision setup continues. I have been using a Thor 320 3x for the last month and it is not going to work for me because I need to be able to more quickly ID a coyote from a small deer at 250 yards. The Thor is pretty sweet and would be great for hog control (let me know if anyone wants to buy it). I used to have a D-740 and I liked the night vision scope better for my application. So, I was going to get another D-740 with the best specs I could find but I got talked into a D-760 because of the bigger lens for light gathering and more magnification.

The two best I have found so far have the following specs with no blems:

D-760 Scope #1
Luminous: 2400
EBI: 0.83
Halo: 1.10
SNR: 31.0
Resolution: 64lp

D-760 Scope #2
Luminous: 2140
EBI: 0.46
Halo: 0.92
SNR: 28.9
Resolution: 64lp

I know enough to be dangerous with these specs but would love your input. Both scopes are about $4,700 delivered. I will be using a Flir LS64 for scanning. Primary application is shooting coyotes between 50-250 yards in South Texas with a 300 Blackout.

I want to get the top of the line scope for super dark nights so please let me know which one of these you would get or if I need to keep searching. Thanks!

Link Posted: 11/27/2013 11:57:24 AM EDT
[Last Edit: 11/27/2013 11:58:20 AM EDT by Dino1130]
Number 1

The higher S/N will be nice in very low light plus the higher halo makes for a tougher tube against recoil.
Link Posted: 11/27/2013 11:59:05 AM EDT
my choice is the first one because of SNR, luminous and Halo
even though the ebi is lower on the second one.
Link Posted: 11/27/2013 3:45:50 PM EDT
Between those two, #1 fpr sure assuming no large blems.

That said, I still prefer a 740 versus a 760.  You allude to the bigger lens of the 760, but the lens of the 740 is "faster" f1.5 versus f2.0.  

The 740 also has a larger FoV.  If the critters are moving as coyotes tend to do, this factor may be relevant.
Link Posted: 11/29/2013 6:42:40 AM EDT
What do you mean by it being "faster" f1.5 vs f2.0? Is that like a refresh rate?
Link Posted: 11/29/2013 8:42:46 AM EDT
[Last Edit: 11/29/2013 8:44:21 AM EDT by murderman]
In photographic terms, "faster" essentially means more light.

The second section in this link is most relevant to this discussion.

F-stop
Link Posted: 11/29/2013 9:32:38 AM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By murderman:
Between those two, #1 fpr sure assuming no large blems.

That said, I still prefer a 740 versus a 760.  You allude to the bigger lens of the 760, but the lens of the 740 is "faster" f1.5 versus f2.0.  

The 740 also has a larger FoV.  If the critters are moving as coyotes tend to do, this factor may be relevant.
View Quote


What murderman says is true. I sold my D 740 ad have regretted it ever since. I bought a D 760  with great specs thinking the extra 2X would be sweet for those longer shots. What I found out is the field of view of the D 760 is dismal compared to the D 740, as is the D 760's light gathering ability or should I say lack of it. The  f 1.5 lens on the D740 lets in 1/3 more light than the D 760's f 2.0 lens. I was able to pick up moving targets (coyotes)  much quicker with the D 740 due to it's wider field of view and the 4X was more than enough for 300yd shots if your up to it. I like the D series scopes and my D 760 is a nice piece of kit, but if I had it to do over I would have kept my L3 tubed D 740 and not have gotten the D 760. On those dark nights the D 740 performance is really noticeable as compared to the D 760.
Link Posted: 11/29/2013 4:19:16 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Dino1130:
Number 1

The higher S/N will be nice in very low light plus the higher halo makes for a tougher tube against recoil.
View Quote


As usual I agree with dino
Link Posted: 11/30/2013 7:13:56 AM EDT
OK. So, it sounds like I should get the D740 and not the D760. I guess I was given bad information originally as you all are telling me that the only reason to get the D760 is if you really need 6x magnification. Otherwise, it is heavier, bigger, not as clear, and smaller FOV. I don't really need the extra magnification, but liked the idea of it.

Any ideas on where to get a D740 with top specs? Do I really need to find one with an L3 tube since I'm primarily using a 300 Blackout? Half the people I talk to say a pinnacle tube is fine on 300 Blackout and use it all the time on a 308 while the other half say it is only warrantied up to 5.56 and will kill your tube. It looks like most vendors are only selling the Night Optics D740-3AGM which has a pinnacle tube.

TNVC only sells pinnacle tube versions and would have to order it. Mod Armory has a Luna Optics SPRS with a L3 OMNI 8 tube but is out of stock for a few weeks. Jager Pro can drop ship me a 31 SNR pinnacle version. Any other ideas?
Link Posted: 12/1/2013 12:26:04 PM EDT
It doesn't sound as though you have been given bad information, but mainly preferential, just like what you are receiving now.  Only you can decide what is best for your application.

Unless you really need the additional magnification that the 760 offers for your application, and some folks really do, there are some favorable trade-offs to the 740 in terms of FoV and f/.  Size and weight are substantially comparable between the two devices, although it is possible to mount the 740 slightly closer to the bore centerline for improved cheek weld.

I have been running a Pinnacle 740 on my suppressed 6.8 SBR for quite a while without any negative results using SSA TL ammo, i.e. plenty hot....YMMV.  It is a 2316/0.85/1.3/64/30 tube, so not exactly a dog, but it doesn't have the "magical" 72 lp/mm that at least one other recent poster seems all too hung up on.  The halo is arguably towards the low side for a riflescope application, but again, no unfavorable issues to date on the mentioned platform....it is relatively "heavy" for an SBR when the can and NV optics are added....like 10.5#.

I facilitated a transaction for an L3-tubed 740 for a good friend of mine through a well regarded IP on this forum, and damn it was a smoking nice device!  While the tube was "only" 2246/0.98/1.3/64/27.1, that device produces remarkably good images and I would almost rather have it than the not-so-terrible one on my 6.8.  There is an arrangement with my friend that if he ever decides he doesn't need/want it any more, it is mine.

I would suggest that you take your time and find the "right" diamond, since you know what you are looking for, and spend the Franklins when the device that you know is right presents availability.
Link Posted: 12/12/2013 7:22:52 PM EDT
[Last Edit: 12/15/2013 1:48:38 PM EDT by tkp401119]
Finally found a nice D740 with good specs and no blems. Specs are 2450 luminous, 1.16 halo, 1.02 ebi, and 28.7 SNR. Thanks for the help guys.
Link Posted: 12/13/2013 4:53:23 AM EDT
Looks like you have found a nice one; you should be very pleased with it.
Link Posted: 12/14/2013 10:12:36 PM EDT
Murderman is right, as usual, but I have still been pleased with my exceptionally sharp D-760 Gen III "Hand Select" from Vic. It is used as more of a "overwatch" scope than critter huinting, but the vast majority of users would be better off with a D-740.
A long distance laser  illluminator is the icing on the cake on my SPR. MOA at 500 meters with MK262 is nothing to to be disappointed in.
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