Carson Optical sent me a couple of the models within the RD-Series to take a look at and so to start with, I decided to review the most popular 8x42 configuration. Dielectrically treated prisms can have a reflectivity of more than 99%, which surpasses aluminium and silver treated ones by a long way. Coating Comparisons They both feature a roof prism design using quality BaK-4 glass and come with optics that have been fully multi-coated. Their coatings, quality glass help to take and transmit as much of the gathered light as possible to your eyes, which can rally help and is indeed most noticable when lighting conditions are not great or even poor. As with the vast majority bins made these days, the Carson RD's have a rubber amount covering almost all of the chassis underneath. All of these are typical, perfectly functional and well within what I would expect to find at this price range.

All Carson RD Series binoculars come with their "No-Fault Warranty" and whilst they don't stipulate a time frame, I assume it is a lifetime?

So whilst this is not ideal, for most users, I don't seeing it being more than a minor point that I needed to bring to your attention. So as you can clearly see with the comparison table below, these Carson binoculars do well within their price range,although it would have been even better if they could have managed to have added phase correction coatings to the prism which would just raise the image definition just that little bit more and take them up above the crowd in this price range. Per il mio utilizzo saltuario è il massimo che volevo spendere, cercavo un oggetto migliore delle cinesate di 40 eu, abbastanza da vedere abbastanza distintamente animali, 10x, di dimensioni contenute. At 9.8ft, the minimum close focus distance for an 8x42 binocular is good, but not excellent (6ft or under). The Carson binoculars also fit perfectly inside and can be stored with the eye-cups extended which is all too often not the case and so whilst a very small thing, is one thing that really annoys me.

All the 3D Series binoculars are 100% waterproof and nitrogen purged meaning that the internal air has been replaced with dry nitrogen to ensure there is no internal fogging in areas of high humidity or rapid temperature changes. So whilst I like it that they make it super easy to adjust your setting, It is a little overkill and makes accidental movement of your preferred setting more likely. The roof prisms on the Carson RD Series binoculars are silver mirror coated which usually means that they have a reflectivity of between 95% to 98%, which is good and whilst not as reflective as dielectric coatings, at this price this is about as good as it gets.# and much better than some at this level that will have aluminium mirror coatings. This is because at any position other than fully extended or retracted, if you apply a reasonable (but not excessive) amount of force, they begin to twist down.However a particular highlight for me is the carry case that is most certainly a step above almost all others at this range: However unless you are really planning on exposing yourself and your optics to the extremes, this should not be much of an issue for you. I just added it as many people ask what the difference is between cheap and more expensive binoculars and this is one of them!

Carson don't state the 'official' IPD range on these, but I measured it to be from a minimum of 5.8cm up to 7.7cm which is fairly typical for a 42mm roof prism binocular. The two thin hinges that span the barrels on the Carson RD 8x42 binocular look to be made from an some sort of metal ally, but most importantly they look and feel very robust and thus should keep the two barrels in perfect alignment, unless you were extremely rough on them! The diopter adjustment wheel that you use to calibrate these Carson RD 8x42 binoculars is fairly typical, apart from the fact that it has two fairly large tabs on both sides of the ring.

Specification

Other features and highlights of the JK-042 and the JK-842 8x42mm binoculars are that they have been fully sealed to make them waterproof. On top of this, the inside air has been replaced with nitrogen, which will help stop any internal fogging of the lenses.