Nanyang City Srate Optical Instrument Manufactory
TEL:86-377-60555661
FAX:86-377-60555671
E-Mail:root@srate.com
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Application:
1.The L37 ,L39,L41 professional use filter transmittance is over 99.5%,it works great with your digital camera .
2. It is not only no exposure compensation necessary,but also can be used all times for protection your digital camera .
3.At the same time the perfect double-sided polishing technology can effectively avoid image distortion.
4.Our appearance using high style without burnish treatment, the surface of the filter use ZZS800 vacuum coating equipment to coating.
5.Each of the filter under strict quality control ,then can reached the high image quality level.Thus provide the wonderful photograph world for photographer.
Parameter:
Model: F77
Glass material: Schottinstruments(SCHOTT)B270
Face shape accuracy: N5(1)
Double-faced coating comprehensive specifications:
300~350nm Tave≤1%
370±10nm T=50%
450~680nm Tave≥99.5%