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Leica's New Geovid HD-B

 
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  #71  
Old 11-13-2013, 09:18 PM
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Re: Leica's New Geovid HD-B

I'm sure ballistics is completely out of Leica's element
Neither bullet weight, nor altitude, are part of field solutions.
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  #72  
Old 11-14-2013, 03:27 PM
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Re: Leica's New Geovid HD-B

I have owned a pair for a few weeks now. They have always been within an inch of shooter or exbal out to around 800 yards with my 30-06 185 gr Berger load. It just happened that profile "us 4" matched well and I have not tried the custom programing yet to see what even further distances read out. Should have tried 875 yards but didn't yet. For selecting the correct curve I just used exbal and selected inputs that matched the default setting that Leica uses. Think they were 0ft, 29.3, and 69 degrees. Better check on that since that could be for a different program I have used recently. They are very good all around and well worth the wait and the dent in the pocket book. Will try to finish up my testing with custom readouts and other calibers and then post some more.
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  #73  
Old 11-14-2013, 03:48 PM
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Re: Leica's New Geovid HD-B

Quote:
Originally Posted by ArizonaWildernessHunter View Post
I have owned a pair for a few weeks now. They have always been within an inch of shooter or exbal out to around 800 yards with my 30-06 185 gr Berger load. It just happened that profile "us 4" matched well and I have not tried the custom programing yet to see what even further distances read out. Should have tried 875 yards but didn't yet. For selecting the correct curve I just used exbal and selected inputs that matched the default setting that Leica uses. Think they were 0ft, 29.3, and 69 degrees. Better check on that since that could be for a different program I have used recently. They are very good all around and well worth the wait and the dent in the pocket book. Will try to finish up my testing with custom readouts and other calibers and then post some more.
How is the light transmission compared to other binocs u have used. I have read that the hd-b will start to get dark fast. How are the optics?
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  #74  
Old 11-14-2013, 04:45 PM
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Re: Leica's New Geovid HD-B

Quote:
Originally Posted by Mikecr View Post
I'm sure ballistics is completely out of Leica's element
Neither bullet weight, nor altitude, are part of field solutions.
that is not true, they are using uncorrected barometric pressure which does relate to altitude, if you don't correct the barometric pressure to sea level standard you get the same value to offer a firing solution. bullet weight doesn't matter either as long as the correct BC is entered.

simply put you need

speed
barometric pressure either corrected or not
temp
bullet bc
and look angle. all of these things the HD b's compensate for.

there is also spin drift and Coriolis but thats probably not enough to worry about if its only doing its thing to 1000 yards.
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  #75  
Old 11-16-2013, 03:28 PM
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Re: Leica's New Geovid HD-B

Quote:
Originally Posted by ZSteinle View Post
How is the light transmission compared to other binocs u have used. I have read that the hd-b will start to get dark fast. How are the optics?
Of the optics I spent a lot of time comparing since I got them this is what I found (also posted some comparisons from before I bought mine earlier in this thread). I know side by side the image is a little brighter than a Leica ultravid 10x42 non-HD (with a couple scratches) and maybe the same as a swarovski el 10x42 non-HD at the center of the image; at night with very little moon light. During an overcast day I know there was no difference between them and a swarvoski el 10x42 HD. Still need to try them out before sunrise and at night to tell for sure if a difference exists (my buddy who owns a pair has been really busy). They are way brighter than leupold gold ring HD 10x42.

After seeing some posts as well stating they get darker faster than a swarvoski el 10x42 HD I can think of some things that may not have been fully considered. The field of view is larger in the geovid HD-B so if the light transmission was identical the image would be less bright by about 2%, due to the light being spread over a larger area. Maybe this could equate to the advantage of being able to better see small points or kickers 1 minute sooner when using a bino with a smaller field of view with HD glass. Either way I think you would still be able to see the animal just fine. If you ever put an ARD or a sunshade on a scope in the middle of the day and then took it off you can still see everything just fine it is just a littler darker. Another thing is the rubber lens covers that came with my still had release agent and rubber fragments on them. Washed them a bunch before putting them on the binos, they should do this at the factory but didnít for some reason. I am positive that this could get on the lenses and would be a pain to clean off. The binos also have dual diopters so if someone didnít adjust them exactly the same a blurry image can look less bright. Finally if you look through a non-rangefinder bino and then look through a rangefinder bino and start clicking away that light for the display will impair your night vision even if it is red. When I do get a chance to compare these some more with the swarvoski HD binos think that the field of view thing will make some difference. Due to the increased speed of getting a ballistic solution I think the edge would go to the geovids for hunting. If swarvoski ever can figure out how to make a HD el range then things may change since we could actually compare apples to apples.

So far for real world experience in low light this is what I found. Glassed up a coyote at around 650 yards off my back porch and it was dark enough out that I could not see the turn warning sign at 596 yards away without the binos. Was out scouting for a friend and was able to wait for an elk to get out of its bed and easily tell it was a 5x5 at a little over 800 yards well after sundown.

As far as clarity they are amazing. The very edge of the lens is just as clear as the center and with that large field of view this makes for more efficient glassing. Was glassing some thick junipers and saw the flicker of a cow elkís ear on the very edge of the field of view.

Also since they are porro prism then are way better at seeing depth and 3D effects. I didnít even realize this till I starting looking through thick junipers and tall grass the day after I received them. The great true to color (at least to my colorblind eyes, I cannot see some shades of red well) and contrast is great like any HD bino.

I think if someone is having problems with light transmission that they should compare them to another pair if possible. These are a whole new design and the lens and prisms are being made by hand so I am sure that a mistake could happen. I know people that have had to get warranty work or replacement done on their leica and swarvoski binos due to things not done perfect. The most severe ones were out of spec hinges. One was a leica and the other a swarvoski from different owners that baby their binos.

One other thing I did notice is that UV light affects how far you can range. No matter how bright or with smoke from a prescribe burn I could range to a little over 1400 yards. With less UV light and when it is really clear with low humidity you can range much further. At night you can range easily over 2000 yards. Got multiple readings on the same slope of 2256, 2257, 2256, 2258, and 2256 in that order. Was resting them on a primos trigger stick tall monopod. If you range one handed expect to range at around 1200 repeatedly and to about a mile with both hands. Make sure to keep the lens on the laser really clean or it will limit you to about 1350 yards.

One last feature that I like is the magnesium edge is tapered toward the lens and there must be a new coating that allows even easier cleaning.

Hope this helps anyone that is interested in these binos. I would still encourage anyone to try anything optic first since peopleís eyes, facial fit, and other needs can vary greatly.

Also if anyone is interested my next bino will likely be the new HD swarvoski SLC 15x56 W B that will be coming out in January provided that I donít spend the funds on some unexpected expense. I donít believe that Leica or Swarvoski are better than the other on a whole but think that at times one company is ahead of the other depending on the product line.
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  #76  
Old 11-16-2013, 04:06 PM
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Re: Leica's New Geovid HD-B

Quote:
Originally Posted by cummins cowboy View Post
they are using uncorrected barometric pressure which does relate to altitude,
I don't have one to test their ballistic solution with. I would recommend this if a decision point in purchase.

I'm sure it does measure absolute pressure, as this is the only measure. Where I'm concerned is in application to ballistic solution.
Altitude is not pressure, it's physical height from seal level, which is meaningless in determining air density to BC in ballistics.
If they're converting measure to pressure altitude, and applying standard conditions for this altitude, they could be messing up because it rarely applies to the real world.
Review this thread: Altitude vs. Barometric pressure

Maybe they did just exactly what is needed for us. But don't assume it anymore than assuming your scope actually adjusts in MOA, or that BC on a box is correct for your velocities & conditions.
With LRH we have to go past generalizations straight to verified truths.
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  #77  
Old 11-16-2013, 06:52 PM
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Join Date: Jan 2013
Posts: 35
Re: Leica's New Geovid HD-B

Quote:
Originally Posted by Mikecr View Post
I don't have one to test their ballistic solution with. I would recommend this if a decision point in purchase.

I'm sure it does measure absolute pressure, as this is the only measure. Where I'm concerned is in application to ballistic solution.
Altitude is not pressure, it's physical height from seal level, which is meaningless in determining air density to BC in ballistics.
If they're converting measure to pressure altitude, and applying standard conditions for this altitude, they could be messing up because it rarely applies to the real world.
Review this thread: Altitude vs. Barometric pressure

Maybe they did just exactly what is needed for us. But don't assume it anymore than assuming your scope actually adjusts in MOA, or that BC on a box is correct for your velocities & conditions.
With LRH we have to go past generalizations straight to verified truths.
If this helps the Geovids read 25.61 and a Davis vantage pro 2 reads 29.75 (although I know that the davis is sometimes 0.10 too low) when right next to each other at the conditions today and 4100 ft elevation.
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