UTZT Set of Extensions Rings with Control Pin

M42x1 types (three rings)

M42 marco rings set

Description:

For the macrophotography with SLR cameras of the Zenit-type with the lens M42x1 screw mount fitted with an automatic diaphragm control. The use of the extension rings conserve all features of the automatic diaphragm. The set consists of three rings (7, 14, 21mm) that are mounted between the camera body and the lens in various combinations depending on the desired image scale. Each lens type should be used with its own combination of rings at different distances to the subject.

Distance from subject to film plane in cm	Image Scale	No. of ring in use
Helios-44M 2/58
60.81 – 34.13	1/8.36 - 1/3.65	1
30.75 – 28.35	1/4.18 - 1/2.54	2
29.60 – 25.60	1/2.79 - 1/1.95	1+2
26.22 – 24.14	1/2.09 - 1/1.58	3
24.48 – 23.38	1/1.67 - 1/1.33	1+3
23.55 – 23.01	1/1.39 - 1/1.15	2+3
23.08 – 22.90	1/1.19 - 1/1.01	1+2+3
Zenitar-K 2/50
49.55 – 26.60	1/7.47 - 1/2.84	1
30.84 – 23.21	1/3.73 - 1/2.06	2
25.03 – 21.59	1/2.49 - 1/1.61	1+2
22.48 – 20.80	1/1.87 - 1/1.33	3
21.23 – 20.45	1/1.49 - 1/1.13	1+3
20.63 – 20.38	1/1.24 - 1/0.98	2+3
20.40 – 20.49	1/1.07 - 1/0.87	1+2+3

M39x1 type (four rings)

Distance from subject to film plane in cm	Image Scale	No. of ring in use
65.7-45.5	1/10.5 - 1/6.55	1
45.5-36.4	1/6.55 - 1/4.76	2
32.5-29.1	1/4.03 - 1/3.27	1+2
29.1 – 26.7	1/3.27 - 1/2.76	3
25.5 – 24.2	1/2.5 - 1/2.18	1+3
24.2 – 23.2	1/2.18 - 1/1.94	2+3
23.5 – 22.7	1/2.02 - 1/1.81	4
22.7 – 22.1	1/1.81 - 1/1.64	1+2+3
22.3 – 21.8	1/1.69 - 1/1.54	1+4
21.8 – 21.5	1/1.54 - 1/1.42	2+4
21.3-21.1	1/1.34 - 1/1.25	1+2+4
21.1 – 20.95	1/1.25 - 1/1.16	3+4
20.95 – 20.85	1/1.12 - 1/1.05	1+3+4

M39 TO M42 LENS ADAPTER RING FOR M39 LENSES FOR THE OLD ZENIT MOUNT BE FITTED IN NEW ZENIT, PRAKTIKA AND OTHER CAMERAS WITH M42 SCREW MOUNT

The adapter is made for M39 lenses to fit M42 screw mount

OR FIT FED/ZORKI –LEICA LENSES IN ZENIT M42 FOR MACRO PHOTOGRAPHY

For the following cameras with lenses.
FED (Industar 10), Industar 26 and Industar 61. Industar 61 L, Industar 61 L D; Zorki – Industar 22, ,Industar 50, ZK 2/50, ZK 1.5/50, Jupiter 3, Jupiter 8, Jupiter17. Zenit – Industar 22, ,Industar 50, Industar 61, Industar 61LZ,Vega1.