NEC MT830 user manual Standard Zoom Lens Wide, Standard Zoom Lens Tele, E-17

Standard Zoom Lens (Wide)

α	Degree	9.02	8.86	8.81	8.78	8.75	8.73	8.70	8.67	8.65	8.64	8.63	8.62	8.61
β (sin= α)		0.15671	0.15395	0.15318	0.15260	0.15216	0.15181	0.15128	0.15076	0.15041	0.15024	0.14998	0.14984	0.14972
γ (cos= α)		0.98764	0.98808	0.98820	0.98829	0.98836	0.98841	0.98849	0.98857	0.98862	0.98865	0.98869	0.98871	0.98873
Screen Size	inch	32	48	56	64	72	80	96	120	144	160	192	216	240
H–Width
4 : 3 Diagonal	inch	40	60	70	80	90	100	120	150	180	200	240	270	300
A	mm	1572	2400	2814	3228	3642	4056	4884	6127	7369	8197	9853	11096	12338
	inch	61.9	94.5	110.8	127.1	143.4	159.7	192.3	241.2	290.1	322.7	387.9	436.8	485.7
C	mm	1552	2371	2781	3190	3600	4009	4828	6057	7285	8104	9742	10970	12199
	inch	61.1	93.4	109.5	125.6	141.7	157.8	190.1	238.4	286.8	319.1	383.5	431.9	480.3
D	mm	-34	-4	10	25	40	55	84	128	172	201	260	304	348
	inch	-1.32	-0.16	0.41	0.99	1.57	2.15	3.30	5.03	6.77	7.92	10.23	11.96	13.70
E	mm	339	462	523	585	646	708	831	1016	1201	1324	1570	1755	1939
	inch	13.3	18.2	20.6	23.0	25.4	27.9	32.7	40.0	47.3	52.1	61.8	69.1	76.4
C/H-Width		1.91	1.94	1.95	1.96	1.97	1.97	1.98	1.99	1.99	1.99	2.00	2.00	2.00
magnification		30.79	46.18	53.88	61.58	69.27	76.97	92.36	115.45	138.55	153.94	184.73	207.82	230.91

Standard Zoom Lens (Tele)

α	Degree	6.93	6.81	6.77	6.75	6.73	6.71	6.69	6.66	6.65	6.64	6.63	6.62	6.62
β (sin= α)		0.12065	0.11850	0.11790	0.11746	0.11711	0.11684	0.11643	0.11603	0.11576	0.11562	0.11542	0.11531	0.11522
γ (cos= α)		0.99269	0.99295	0.99302	0.99308	0.99312	0.99315	0.99320	0.99325	0.99328	0.99329	0.99332	0.99333	0.99334
Screen Size	inch	32	48	56	64	72	80	96	120	144	160	192	216	240
H–Width
4 : 3 Diagonal	inch	40	60	70	80	90	100	120	150	180	200	240	270	300
A	mm	2041	3118	3656	4194	4732	5270	6346	7961	9575	10651	12804	14418	16032
	inch	80.4	122.7	143.9	165.1	186.3	207.5	249.9	313.4	377.0	419.3	504.1	567.6	631.2
C	mm	2027	3096	3630	4165	4699	5234	6303	7907	9511	10580	12718	14322	15925
	inch	79.8	121.9	142.9	164.0	185.0	206.1	248.2	311.3	374.4	416.5	500.7	563.8	627.0
D	mm	-34	-4	10	25	40	55	84	128	172	201	260	304	348
	inch	-1.32	-0.16	0.41	0.99	1.57	2.15	3.30	5.03	6.77	7.92	10.23	11.96	13.70
E	mm	339	462	523	585	646	708	831	1016	1201	1324	1570	1755	1939
	inch	13.3	18.2	20.6	23.0	25.4	27.9	32.7	40.0	47.3	52.1	61.8	69.1	76.4
C/H-Width		2.49	2.54	2.55	2.56	2.57	2.58	2.58	2.59	2.60	2.60	2.61	2.61	2.61
magnification		30.79	46.18	53.88	61.58	69.27	76.97	92.36	115.45	138.55	153.94	184.73	207.82	230.91

E-17