The product includes three types of optical filters: black, white, color, and special effects, including red filter, yellow filter, blue filter, green filter, orange filter, cyan filter, purple filter, infrared filter, etc. 40 For other varieties, their specifications are M25, M27, M28, M30, M30.5, M37, M43, M46, M49, M52, M55, M58 and so on.

If users need optical filters with special requirements, please call us.

Comparison table of optical glass grades

Name	Grade	Name	Grade	Name	Grade
sky-light filter	ksy	fluorescent filer	fl	six-star-light filter	lx
uv filter	uv	enhanced color filter	ec	six-star-light filter	bx
amber color temperature filter	85a	low contrast filter	lc	changeable crossing filter	ks
blue color temperature filter	80b	polarized light filter	pl	two-image filter	dy-2f
yellow filter	y	screen filter	sn	three-image filter	dy-3f
red filter	r	mist filter(five classes)	w-0,1,2,3,4	four-image filter	dy-4f
orange filter	o	crossing filter	sz	five-image filter	dy-5f
green filter	g	meter filter	mz	six-image filter	dy-6f
planar three-image filter	dy-3pf	planar six-image filter	dy-6pf	yellow hole-filter	zk-j
rainbow filter	ch	green hole-filter	zk-l	red hole-filter	zk-h
mild hole-filter(light)	zk-r1	light grey hole-filter	zk-a3	neutral grey hole-filter	zk-a6
mild hole-filter(thick )	zk-r2

ND filter ZAB00 ZAB02 etc.

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