Short review of Viking 8x42 ED-FF
Here is a short review I made of the Viking 8x42 ED-FF.
Some comparisons made with ZR Prime HD 8x42 , Leupy 8x42 McKinley and Viking 6.5x32 MD. Tested with Mark I eye ball armed with spectacles.
The bin is delivered, put in a thin textile bag , and then put in a black binocase similar to the ones for the Prime/Mckinley.
General:
I really like the overall “neat” format of the bin, compared to the McKinley.
Length with eye cups down: 15.2 cm.
Weight with rubber cups : 857 gram
Center of gravity: estimated 80mm inwards from the front.
Dressed with rubber with very good friction so it doesn´t slip. Thumb indents. The Prime is too easy to slip out of the hand, strange they put that slippery rubber on it…
Twist up rubber eye cups has in total three positions and has smaller diameter (45mm) than Prime/McKinley. (47/48mm-ish). Eye cups rounded at top. Eye cups move 9.4 mm to the end position when twisted all way.
Diopter control (at right eye piece ) & hinge not to easy nor too hard to move.
Ocular lens diameter 26 mm, same as Prime/McKinley.
Focus wheel (OD 32,5mm, length 25.8mm, practical length to get traction 20mm) made of metal, same “splines” design as the McKinley. I like that better than the Prime design.
The ring holding the objective lens has an inner diameter of 41mm…so this is not a true 42mm bin.
Looking through the objective end using a flash light I can see small dust particles inside on the optical surface…I don´t think these will effect the image, to small to see from the other side so to speak. QC issue…have you seen dust inside 400-600£ bins assembled in Japan? Maybe these are assembled in China after all ;-)
Focus wheel. Tension similar to Prime/McKinley….not as smooth as the Viking 6.5x32 MD i have, few comes close :smoke:., no slop to talk about. Focus anti-clockwise to infinity, with 1.4-ish turns from end to end. Like 0.3 turns past infinity.
Neckstrap is connected on the outer side of the barrels, good.
Rubber protective cups on objective and ocular sides stays in place, not like on the 6.5x32 MD where they nearly fall off the objective ends, too loose. Cups on ocular side same style as on the Prime/McKinley.
VOC said it was made in Japan, but there is no text on it, nor on the box etc stating that. I guess it should be marked with country of manufacture, right?
It has a serial number.
Flat field, looking at vertical lines, bends slightly when moved towards the edge of the image.
CA slightly more than Prime.
Resolution, almost the same as Prime/McKinley, looking at a test chart, only one test group below. No boosted resolution test. Tests done indoors with artificial light so take result with a large grain of salt…see it as a relative comparison.
Large sweetspot, sharp close to the edge, good enough.
Collimation: When looking at an object far away and then removing the bin quickly, the eyes were looking a bit at different directions…QC issue...It will be sent back to VOC.
Optical coatings looks green on ocular side and on objective side.
Some focus hunting to find best sharpness, may give feeling it is not directly sharp.
Freezer test: After kept in -18° C for 12 hours, the focuser was very hard to move, dioptre adjustment possible. Hinge possible to adjust but hard to do.
I wouldn´t really call it operational down to -20°C....as stated earlier in this thread.
Summing up: A very nice bin for the money, even nicer when looking through without spectacles :t: . If you get the chance, take a closer look at it if you like image style similar to Prime/McKinley.
Anders