Passion. by H.T (1)

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The field of view of the GPO Passion HD 10x42 didn’t make me suspicious as it looked bigger than 6 degrees. Still, after I spent a while playing with the GPO and Leica Ultravid BL the field of view of the latter seemed to be a bit wider. It was a surprise as, according to the official specifications, the Leica’s field amounts to 6.3 degrees and that of the GPO to 6.4 degrees. I measured it on my own and these observations were confirmed. The field of view of the GPO was about 6.1 degrees so noticeably less than 6.4 degrees stated in the specifications. Here the binoculars lag behind its most serious rivals.no chromatic aberration even on brightly lit objects viewed at the field edge, where normally this aberration is the greatest. Again, it’s not that people These GPO Passion HD 10x42 binoculars are truly excellent and certainly up there with the very best in this and even the higher price ranges. For a more complete picture, below are the measurements that I took of them in a range of different states: Here we can see that on field of view the GPO performs significantly better than the Zeiss or Hawke but is beaten by the Opticron that delivers just short of 6% extra area of view. There is a dramatic difference between the16/16.5mm Eye Relief of the GPO/Zeiss/Hawke and the Opticron which has 19.0mm ER. However I urge a little caution here as from experience I can say that the Terra’s eyecups work well with the ER and I have used Leicas with ERs of 16mm and also had no problems with them. Just bear in mind that the ER is only half of the story and the other half is the eyecups and there is no substitute for trying them out to see if they work for you.

GPO call this their "PASSIONdrop hydrophobic coatings" and they work by filling in the micro-grooves and channels created when the lenses are finely polished. The top-of-the-range Passion HD series currently consists of five models with the following parameters: 8×42, 10×42, 8.5×50, 10×50 and 12.5×50. All of them are roof Schmidt-Pechan instruments with a magnesium barrel which is waterproof and nitrogen-filled. Their declared transmission amounts to 91%. The binoculars are also equipped with hydrophobic coatings. Their prices range from 980 Euros for the 8x42 model to 1300 Euros for the 12.5×50 device. Unfortunately the chromatic aberration correction is a serious flaw of the GPO. The Swarovski Swarovision EL 8.5x42 and the 10x42, both being among my favourite pairs of binoculars, are as close to perfection as it is only possible and yet noticeable chromatic aberration on the edge of the field remains their only slip-up. The GPO Passion HD 10x42 fares even a tad worse than these two. While playing with the GPO I also had the Swarovision 8.5x42, the Zeiss Conquest HD 10x32, the Leica Ultravid BL 10x42 and the Trinovid BN 8x42 at my disposal. In the aberration category the GPO fared the worst of all of them. It reflects badly on the tested model. I would be more understanding if the Passion HD offered the widest field of view available on the market at the same time but, unfortunately, the tested binoculars are nowhere close to the Nikon Monarch HG or the Zeiss Conquest HD in that aspect.This GPO Passion HD 10x42 binocular has a FOV that is 336ft wide/high at a distance of 1000 yards away (112m @ 1000m), which for as you can see from the comparison table below is excellent for a full-sized 10x binocular and places them right up there amongst the very best. Other minor features of the Passion HD 10x42s are in the lens caps and rainguard, the strap, and the case. The objective lens caps are soft rubber covers mounted Boyle, N. B., et al. (2017). The effects of magnesium supplementation on subjective anxiety and stress — A systematic review.

One thing that didn’t impress us as much about the Passion HD binocular was its field curvature. The view through the center of the field is great but the Thus in terms of image brightness, this leads me to rate these GPO's right at the top of what you can expect to get from a 10x42 binocular. Components Used & Build Quality are out of the top drawer. From the magnesium chassis and aluminum eye-piece housings to the integrated diopter and focus wheel and not forgetting the high-grade optical components and coatings, the high level of components and the noticeable build quality is evident throughout the whole instrument. This helps maintain a better view in all conditions when out in the field, they stay cleaner for longer and are easier to clean when you eventually have to. This means you apply less force whilst cleaning, which in turn reduces the likelihood of you marking or scratching the lens. Coating Comparisons Their official outer dimensions are fairly typical for a 42mm binocular and so not too much to report here.

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The level of fuzziness right at the edges of the view is very minimal (almost non existent) and once again, in my experience is about as good as you could ever hope for. use. The waterproof case is a semi-rigid cordura pouch that zips shut with two zippers and has its own strap. One side is equipped with a net pouch for storing a To help me to be as consistent as possible, I have a number of benchmark binoculars which are used to compare and then rank the view against. For this review, I used my "alpha" level 10x42 benchmark and a mid-level 10x42 binocular for comparison:

This can be important as any movement can lead to the optics being pulled out of alignment if you ever expose your optics to extreme temperatures, be that due to the environment or perhaps if you were to leave them in a hot car by accident for example. Constructed out of an all-magnesium chassis the body of the binoculars is highly durable. An outer multi-texture body armour offers further protection and grip. The binoculars are fully O-ring sealed for complete waterproofing, and the interior has a nitrogen filling to ensure the binoculars remain fog proof.

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During last 2-3 years we’ve seen many new companies which offer top-of-the-range binoculars and spotting scopes making their debut on the market. Not so long ago we informed about a launch of Blaser binoculars, produced by German Sport Optics. Their prices are comparable to those of the most expensive Leica, Swarovski or Zeiss models. Binoculars priced at 1000 Euro level are also being offered by such companies as Maven Optics or Tract Optics (so far they have been available mainly on the American market); what’s interesting they have managed to earn very positive opinions. German Precision Optics is the next player which joined that club. It has been set up by former employees of German optics industry and, at the beginning of the second quarter of 2017, they managed to launch two series of binoculars. What’s interesting, it’s the cheaper Passion ED series which impresses with wide-angle fields of view, not more expensive models. The 8.5x50 model fares the worst in that category, with the apparent field of view of its eyepieces amounting to 51 degrees. Still it should be mentioned that the results of contemporary 8x50 models aren’t much better. Moderately wide fields of view are also featured by the 8x42 and 10x50 models (57 and 59 degrees respectively of the apparent field of eyepieces). A better situation can be noticed in case of the 12.5x50 (with a field as wide as 67.5 degrees) and the 10x42 (64 degrees) models. The latter had fallen into our hands so we decided to share with our Readers our hands-on experience. The rubber that they use is extremely hard, so much so that it can at first glance look to be a plastic or even metallic exterior. This finish does look very good and I have to include that the fit to the chassis underneath is excellent. view at 1000 yards, which is about average for a 10x binocular. We measured the close focus at 6.25 feet with only minimal collapse at the edges of