Zoom lock mechanism the zoom lock

Lista zoom lock mechanism the zoom lock

  • * zoom lock mechanism * the zoom lock prevents unwanted barrel extension when carrying the lens/camera combinationmultiple-layer coatings on cemented surfaces of plural elements) and multiple-layer coating technology on ordinary elements, ghosting and flare due to the reflections that occur when light enters through the front element and reflections caused by the imagers themselves are reduced to the absolute minimum* enhanced peripheral illumination * peripheral light fall-off is minimized when compared with that of conventional lenses for film cameras, so images are uniformly bright from the center to the periphery8 xr di ii p/ canon ** ** pronta entrega ** compatível com todas as cameras canon dslr com encaixe ef-s * não é compatível com full-frame * optimized for digital slr * the use of xr (extra refractive index) glass optimizes the overall distribution of optical power, and also reduces various aberrations to the absolute minimum while achieving remarkable compactness* ld glass * an ld (low dispersion) glass element is used to accomplish effective compensation of on-axis and lateral chromatic aberrations, a critical factor for enhancing optical quality in digital photography, in order to achieve outstanding optical performance over the entire zoom rangein addition, suitable positioning of two hybrid aspherical elements serves to maintain imaging performance and to shorten and compress the entire optical system63" / 27 cm optical design 16 elements in 13 groups diaphragm blades 7 focus type autofocus image stabilization none filter size 67 mm (front) dimensions (ø x l) 222x minimum focus distance 10* internal surface coating to reduce ghosting and flare * by employing "internal surface coatings" (i8 minimum aperture f/32 lens mount canon ef-s format compatibility aps-c angle of view 78° to 31° maximum magnification 0focal length 17 to 50mm maximum aperture f/2** tamron 17-50mm f/2


  • That is, the anti - theft performance of the lock can be improved by pasting the lockinformation notify:once the lock is switched through the app, the app will push the switch lock information in real time and save the history for the user to viewattached lock body with capacitive touch switch,slide up and down to switch the lock accordingly30 ° angle design doesnt affect the use of the door handlepackage included1 × smart stick lock sunique anti-theft mode:enable anti-theft mode on the appthis makes it impossible for thieves to unlock the doorspecificationbrand:name:smart stick lock sunlock mode: four intelligent switch lockssupport system: ios73 and aboveelectrical capacity:3800mahservice time:about 1 year (rechargeable)type:right open lockleft open lockfeatures:1detachable lithium batterycro usb charging port, convenient and quicksuitable for android & ios system,fashion design, also can be nice gifts3m industry is as stable as rock in humid and hot weather


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