Beisite magnifying glass 20 times with light UV purple white hand-held diamond ring jade crystal pearl tourmaline jewelry identification

149.6 CNY (21.79USD)

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Product parameters:

Processing customization: No
Type: Jewelry Magnifier
Brand: Bai Site
Model: Bassett
Magnification: 1-1000 times

specification	project	specification	project
Primary magnification	20Times	Primary mirror diameter	21mm
Lens properties	Optical glass lenses	Mirror body material	Stainless steel frame
Switch	Have	Battery	LR927 button batteries three
Light source	Yanchao Deng (UV violet test Yanchao Deng)	net weight	About 51 g
Observation distance	Observe objects within about 5-8 mm	Dimensions	85 * 24.5 * 21mm

Common answers:

One to see the word is anti, this is the use of the error, the time to observe the first to put the eye in front of the magnifying glass, and then slowly moved to the object, the eye and the magnifying glass with objects Oh, until the away from Objects close to the clear observation point, the professional point of speaking, called the working focal length.

two This is a professional-grade 20-fold identification tool, working from the object focal length of about 5-8 mm If you just read the book, read the newspaper, it is recommended to buy the standard magnification magnification can read Oh, magnifying glass is not the higher the better, but the appropriate magnification to do, and the telescope is about the truth. Identification, the standard ten times the gem mirror can be identified to meet the conventional needs. Usually 30 times from the object within about 3-4 mm 20 times 5-8 mm 10 times less than about 10 mm

20 times the ring light jewelry identification with a magnifying glass! Real magnification, the quality of the magnifying glass higher !! Standard 20 times the ring purple white light to send identification manual, and double-sided velvet mirror cloth,