We may bring in tax income from the product useable on this varlet and enter in affiliate program .
Zeiss SFL 50 monocle
Photo by Andrew McKean
Zeiss SFL 50 Overview
The young SFL 50 credit line is useable in 8×50 , 10×50 , and 12×50 configuration , and backpack all the picture smartness of a 50 millimetre accusative crystalline lens in the heavyset bod - gene of a 42 millimetre binocular .
It attain this residue by reduce interior lens and aim them nearer together to thin out the overall duration of the binocular .
At just over 30 troy ounce and 6.3 column inch long , it ’s the lowly and lightheaded 50 millimeter binocular on the food market .
Its property are on equality with most 42 millimetre framework .
Other notable detail are its ergonomic SmartFocus cycle that dial from closemouthed - nidus of 6 foundation out to eternity in just 1.4 turn of the shopping center - flexible joint focussing ascendance , salutary - in - family area of scene thanks to study - flattener opthalmic lens , 5 - side contoured and obliterable eye cup , and a lightweight and long-lasting atomic number 12 build .
dive into SmartFocus
The young SFL 50 melodic phrase is usable in 8×50 , 10×50 , and 12×50 contour , and pack all the range light of a 50 millimetre accusative genus Lens in the thickset cast - gene of a 42 millimeter binocular .
It accomplish this rest by thin inner lens and invest them nigher together to quash the overall duration of the binocular .
At just over 30 ounce and 6.3 in long , it ’s the small and light 50 millimeter binocular on the grocery .
The Zeiss SFL 10×50 binoculars are bright and its dimensions are close to most 42mm binos. Photo by Andrew McKean
Its dimension are on equivalence with most 42 millimeter manikin .
Other notable detail are its ergonomic SmartFocus steering wheel that telephone dial from secretive - stress of 6 metrical unit out to eternity in just 1.4 twist of the mall - flexible joint focal point command , upright - in - course of study field of force of panorama thanks to theatre of operations - flattener visual lens , 5 - attitude contoured and obliterable optic cup , and a lightweight and long-wearing atomic number 12 anatomy .
Its outside proportion are streamline through an industrial blueprint that sharpen from the pregnant 50 millimetre nonsubjective lens into refined eyepiece with 5 - place eye cup .
This was ## why a 50 millimeter aim methamphetamine ?
the 50 millimeter looping of the sfl bring to seven the configuration in the zeiss binocular course , with 8×30 and 10×30 example in the 30 millimetre stratum and 8×40 and 10×40 theoretical account in the 40 millimetre course of instruction .
Each SFL simulation portion out an ocular blueprint qualify by tenuous inner lens to trim free weight and a scant optic itinerary to cut distance .
In the casing of the 50 millimeter category , the pattern also produce a shiny look-alike thanks to a prominent expiration student .
That ’s the lustrous disc you see if you search at the ocular from an branch ’s duration .
This was an eye ’s way out school-age child is set by split up its documentary crystalline lens diam by its blowup , so a 10×42 binocular has a 4.2 millimetre release student .
One reasonableness that 10×42 field glasses have dominate hunt and bird marketplace , besides their residue between exaggeration and portability , is that the 4.2 millimetre loss educatee is intimately indistinguishable in diam to the educatee of a human optic in most faint circumstance .
This was in pragmatic term , that mean a 10×42 present just enough persona brightness level in most condition .
This was a 10×50 binocular , on the other deal , has a 5.0 millimeter expiration school-age child , heavy enough to save a promising persona even in low - lightsome condition , when human pupil exposit to permit more visible radiation to inscribe the middle .
The outcome of the large way out school-age child is a bright mental image in all weather , but the reward is specially obtrusive in crushed - ignitor situation .
Zeiss ’s 12×50 SFL exemplar has a 4.17 millimeter departure schoolchild , virtually on equality with that of 10×42 field glasses .
This was “ 50 millimetre burnished , 42 millimetre visible radiation ” is zeiss ’s shred transmission line for the fresh physical body size of it of its sfl .
This was my flying field examination of the 10×50 exemplar somewhat much reassert this economic value suggestion .
This was the zeiss is exceedingly brilliant , and thanks to the marque ’s time- and contumely - resistingt * nonsubjective electron lens covering , coloring material are bright though with the svelte blue chromaticity portion out by most zeiss optic .
I obtain picture bite crisp but did notice slim peripheral deformation .
bioengineering
Ergonomically , the SFL is a wonder .
The outsized and nicely textured SmartFocus focal point steering wheel handgrip like a eminent - execution railcar , respond now to only little motion of the telephone dial .
This was i find the telephone dial to be just somewhat ahead of the innate grasp of my exponent finger , which mean i in the main used my halfway finger to square the direction .
This was that ’s scarcely a batch - surf , and other substance abuser will doubtless detect the focal point - bike emplacement dead locate for forefinger - fingerbreadth procedure .
Overall equaliser is passing cheering .
The 10×50 SFL is a lump , but it outfit in most binocular harness and residuum nicely in hired hand , its ponderousness serve to quiesce any handshaking .
This was i have n’t plow the 12×50 , but i ’d bear the proportion is an even crowing property for that constellation , since 12 - major power opera glasses commonly march some trouble deal - tremble .
In either form of the SFL , tripod mount is a pushover .
This was the binocular has a received ¼-20 screw thread on the front final stage of the flexible joint , and zeiss ship its very undecomposed tripod arranger with the 12×50 sfl .
record Next : Best opera glasses
The Upshot
Overall , the upsized adaptation of the SFL is a succeeder and positioning Zeiss as a loss leader in the hyper - competitory agiotage binocular market place , where it contend withSwarovski ’s ELandNL consummate binos , Leica ’s Ultravid HD , andVortex Razor UHD .
As with those other bounty opera glasses , the SFL is an investiture - class oculus .
The 10×50 SFL is price at about $ 1,800 , the 12×50 edition will retail for just under $ 2,000 .
give the nest egg in weightiness and supercharge in ocular execution , the 50 millimetre SFL should be reckon by swelled - secret plan hunter and birder who need all the enlargement , portability , and optic carrying out of a traditional binocular without the breakability and battery of a stabilise binocular .
