Runco manual SC-1 Lens Options and Throw Ratios, Minimum Maximum

Installation

Throw Distance Ranges: Table 3-3lists the available lens options for the SC-1 and their associated throw ratios.

Table 3-3. SC-1 Lens Options and Throw Ratios

		Throw Ratio	Throw Distance Range (in
			inches, with 100-inch Wide
Lens Option (Note 2)		(Throw Dist. ⎟
		Screen Width)	Screen)
		(Note 3)
			Minimum	Maximum
Signature A	1.78:1 screen	1.40-1.58	140	158
	1.90:1 screen	1.32-1.50	132	150
Signature B	1.78:1 screen	1.57-1.93	157	193
	1.90:1 screen	1.48-1.81	148	181
	1.78:1 screen	1.96-2.55	196	255
Signature C	1.90:1 screen	1.84-2.40	184	240
	2.35:1 screen (with CineWide)	1.49-1.93	149	193
	1.78:1 screen	2.37-3.19	237	319
Signature D	1.90:1 screen	2.25-2.99	225	299
	2.35:1 screen (with CineWide)	1.80-2.41	180	241
	1.78:1 screen	3.22-4.56	322	456
Signature E	1.90:1 screen	3.02-4.28	302	428
	2.35:1 screen (with CineWide)	2.44-3.45	244	345
	1.78:1 screen	4.30-6.00	430	600
Signature F	1.90:1 screen	4.03-5.63	403	563
	2.35:1 screen (with CineWide)	3.05-4.26	305	426
	1.78:1 screen	5.50-8.50	550	850
Signature G	1.90:1 screen	5.16-7.97	516	797
	2.35:1 screen (with CineWide)	3.91-6.03	391	603

Notes:

1. Throw distance does not affect image quality, provided these ranges are taken into account.

2. Only the Signature C, D, E, F and G lenses can be used with the optional CineWide (secondary anamorphic) lens. Doing so affects the throw distances as shown here.

3. The SC-1 has a native resolution of 2048 x 1080, which is about a 1.9:1 aspect ratio. For 16:9 material, only the 1920 x 1080 area is used which is a 16:9 (1.78:1) aspect ratio. Most often, the 16:9 throw distance will be used. If used with CineWide or CineWide with AutoScope, only the 16:9 area will be used.

Runco SC-1 Owner’s Operating Manual 21