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Iris Diaphragm Mounts

Iris Mount for 70mm Outer Diameter Irises, #53-921

Multiple Iris Diameter Options Available
Durable Anodized Aluminum Construction
Set Screw Included

Iris Diaphragm Mounts fit our most popular sizes of Iris Diaphragms and are constructed from durable black anodized aluminum. These mounts feature a variety of different English post mounting options, and each utilize an included set screw to ensure a secure fit.

Technical Information


Iris Diameter	A	B	C	D	E	F	G	H	Stock No.
19.8	30.8	19.8	6.1	6.35	2.5	4-40	15.1	8-32	#53-918
37.0	50.8	37.0	9.0	9.5	2.8	6-32	25.0	¼-20	#53-919
53.0	66.0	53.0	9.9	9.5	3.0	6-32	32.7	¼-20	#53-920
70.0	86.0	70.0	10.1	9.5	3.8	6-32	42.7	¼-20	#53-921
21.0	32.0	21.0	6.2	9.5	3.2	4-40	15.7	8-32	#54-862
38.0	52.0	38.0	9.1	9.5	3.2	6-32	25.6	¼-20	#54-863
54.0	67.0	54.0	8.9	9.5	3.8	6-32	33.2	¼-20	#54-864
72.0	88.0	72.0	10.3	11.5	3.8	6-32	43.7	¼-20	#54-865