Re: DTA SRS: S&B 5-25x56mm or Hensoldt 4-16x56mm F
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: GoughIsland</div><div class="ubbcode-body">Regarding the PH and the Hensoldt: I have the PH 3-15 and the Hensoldt 4-16. Both have great optics. The Hensoldt has tunneling between 4 and 5 power, but the PH has no tunneling. The Hensoldt has better eye relief and is less fatiguing to look through for a long time. For me, if I stare at a target too long, the crosshairs start to get a bit fuzzy. I'm not sure why. The Hensoldt is slightly better at dusk, but both are noticably brighter optics than any scope I've used other than the S&B (which are very close to the PH). The Hensoldt has very slightly (meaning minimally) better resolving power but it comes at the expense of lateral chromatic aberration - meaning that in bright light or with white objects, if you move your eye even slightly off center there will be purple or green edges to the white or bright objects. I have heard that this is related to parallax adjustment or stray light, but I have my doubts about this. If you google this, you will find it described with zeiss binoculars (which are perhaps the best out there) and the Canon 1.2 50 mm lens. Digital cameras have internal software to correct this, so it is unlikely you will see a picture of it. The color fringing is slightly annoying but in no way affects the purpose of the optic.
However, above a certain point, optics become the least important part of a scope. The reliability and repeatability of the mechanics are much more important. The best data on this comes probably from benchrest (where March scopes appear best in repeatability, and also have pretty good optics) and tactical competition and training data (which people like Frank would know about). Anyone can easily compare optics, but the real test is the mechanics. Usually you can't return a mounted scope, so it is hard to know in advance about the mechanics other than to go to places like this and other forums. Companies don't tend to give accurate QC data to the public.
To put some perspective on this: the worse scope I've ever owned was a Simmons or Tasco (I don't remember which). It was mounted with good rings on an accurate 22LR rifle. For awhile it worked great for 100 yard and less targets. It wasn't as bright or as clear as better optics, but that was never a problem as far as accurate shooting was concerned. One day it started drifting all over the place. I checked the rings and they were not the problem. I took the optic off and shot with iron sites (meaning no optics) and had great accuracy again. Just looking at the scope, its optics were good enough. But it sucked for repeatability. </div></div>
Yes, but every time you are just on the edge of resolving something it makes you wonder if that other scope would be just better enough...
I have seen the green edges in my Zeiss Victory RFs. Love them though and it doesn't seem to be a big issue with binoculars as the eye relief is so short. Notice it more when I leave my eye glasses on, don't notice it at all when I take them off and adjust the diopter. Just my observations and opinion though.
Optics are only part of the question, but due to the way I labeled the S&B scope glass, the thread deviated. I had problems with a Bushnell 3200 and the reticle moving, but to be fair that was on a 50BMG.
What is the word on repeatability and reliability between Premier, Hensoldt and S&B? As far as I've read here and elsewhere, there really isn't a difference between these three. Occasionally everything breaks, these scopes included. Am I wrong?