size	type	brand	purpose / limitations
39mm	B2	Nikon for 16mm
39mm	056	Nikon for 16mm
39mm	A2	Nikon for 16mm
52mm	UV L1Bc	Nikon	UV / protect lens
52mm	Sky 1A	Canon	Sky / protect lens
52mm	UV 101	Hoya	UV / protect lens
52-55mm	STEP RING	Tiffen	step from 52-55 mm
52-55mm	STEP RING	KALT - thick	step from 52-55 mm
55mm	Cross Screen	Vivitar	add stars to image
55mm	ND8 4X		neutral density 4 stops
55mm	UV	attached to welding glass	UV / protect lens
55mm	1x	B+W	Clear / protect lens
55mm	Yellow 3x	B+W	enhance sky/contrast
55mm	RED 080 5x	B+W	enhance sky/contrast
55mm	Green	Vivitar	enhance green/contrast
55mm	Polarizer - NOT DIGITAL		works on film only
55-62mm	STEP RING		step from 52-62 mm
62mm	UV	Tiffen	UV / protect lens
62mm	Circular Polarizer	Hoya Super	Polarizing – cuts glare
62-72mm	STEP RING		step from 62-72 mm
72mm	Circular Polarizer	Hoya	Polarizing – cuts glare
72mm	Sky 1A	Tiffen	Sky / protect lens
72mm	UV	Hoya HMC	UV / protect lens
72mm	IR 720 Infrared	Zykkor	Infrared – blocks visible
72mm	Polarizer - NOT DIGITAL	PRINZ	Polarizing – cuts glare
77mm	UV F-PRO	B+W	UV / protect lens
77mm	Circular Polarizing F-PRO	B+W	Polarizing – cuts glare
77mm	UV	Hoya HMC	UV / protect lens
77mm	ND8	Vivitar Series 1	neutral density
77mm	Circular Polarizing	Tiffen	Polarizing – cuts glare
77mm	Digital UV	Quantaray	UV / protect lens
82mm	010 UV Haze 1x	B+W	UV / protect lens
82mm	Warm Polarizing Circular	Moose's	Polarizing – cuts glare
4 x 6	.6ND Grad Soft	Lee	neutral density
4 x 6	.6ND Grad Hard	Lee	neutral density
4 x 6	.9ND Grad Soft	Lee	neutral density
4 x 6	1.2 ND Grad Soft	HiTech HT1409	neutral density
4 x 6	holders - bellow / regular	Lee w/ 72 and 77 mm adapters	holder