Angle Of View and Focal Length
Prepared 2005-11-11 by Bill Claff

Introduction

In terms of lens specifications angle of view and focal length are measured strictly at infinity focus.
Angle of view at finite focus distances is meaningful but that is a separate topic and not covered here.

Angle of view is typically reported as a diagonal picture angle for a particular film/sensor size.
Sometimes the film/sensor size used is not stated or obvious.

Diagonal picture angle at a particular diagonal size is related to focal length by a simple trigonometric formula.

You can also rearrange this formula to obtain focal length from diagonal picture angle and diagonal size.

Some manufacturers, Nikon in particular; provide a more precise diagonal picture angle than focal length in their lens specification.
Stated focal lengths are typically rounded to the nearest mm; sometimes further.
So if diagonal picture angle is more precise then a more precise focal length can be computed using the focal length formula.

Nikon reports diagonal picture angle with a precision of 10 minutes or 1/6^th degree.
By adding and subtracting ½ the precision from the reported diagonal picture angle we can compute a range of focal lengths; the “true” focal length falls in this range and the range implies focal length accuracy.

The following table lists picture angle and focal length data for a number of lenses.

The data in the green cells is entered specifications.
The data in the light green cells is the desired film/sensor size for picture angle calculations.
The data in the yellow cells is computed.

Zoom lenses are listed twice, once at each focal length.
Bold lens descriptions are auto focus, non‑bold descriptions are manual focus.

The computed horizontal pictures angle and vertical pictures angle are primarily of interest to photographers doing panoramic photography for the purpose of performing corrections before stitching images.
For example, I use 88.4 and 66.0 doing panoramic stitching of images taken with my 12-24mm f/4G ED AF-S DX Zoom‑Nikkor lens.

The computed focal length is generally within the accuracy of the published focal length; exceptions are listed in the column labeled as corrected.
A common example is the 50mm f/1.8D AF Nikkor; the computed focal length is 51mm rather than 50mm.

It appears from this table that only Nikon states picture angles that are independent from and not simply computed from the focal length.

Table (Excel workbook)

sensor or film		picture angle				focal length
		computed		published			computed
horizontal	vertical	horizontal	vertical					accuracy	corrected	Lens
mm	mm	degrees	degrees	degrees	minutes	mm	mm	mm	mm
		at	at
		23.4	15.6
		mm	mm
23.4	15.6	88.42	65.93	99	0	12	12.01	0.02		Nikon	12-24mm f/4G ED-IF AF-S DX Zoom-Nikkor
36	24	79.49	58.00	114	0	14	14.05	0.02		Nikon	14mm f/2.8D ED AF Nikkor
36	24	69.30	49.48	104	0	17	16.90	0.03		Nikon	17-35mm f/2.8D ED-IF AF-S Zoom-Nikkor
23.4	15.6	68.81	49.08	79	0	17	17.06	0.03		Nikon	17-55mm f/2.8G ED-IF AF-S DX Zoom-Nikkor
23.4	15.6	65.97	46.80	76	0	18	18.00	0.03		Nikon	18-200mm f/3.5-5.6 ED-IF AF-S VR DX Zoom-Nikkor
23.4	15.6	65.97	46.80	76	0	18	18.00	0.03		Nikon	18-55mm f/3.5-5.6G ED AF-S DX Zoom-Nikkor
23.4	15.6	65.97	46.80	76	0	18	18.00	0.03		Nikon	18-70mm f3.5-4.5G ED-IF AF-S DX Zoom Nikkor
36	24	65.53	46.44	100	0	18	18.15	0.03		Nikon	18-35mm f/3.5-4.5D ED-IF AF Zoom-Nikkor
36	24	65.53	46.44	100	0	18	18.15	0.03		Nikon	18mm f/2.8D AF Nikkor
36	24	60.15	42.22	94	0	20	20.17	0.03		Nikon	20mm f/2.8D AF Nikkor
36	24	52.26	36.22	84	30	24	23.82	0.03		Nikon	24-85mm f/2.8-4D IF AF Zoom-Nikkor
36	24	52.26	36.22	84	30	24	23.82	0.03		Nikon	24-85mm f/3.5-4.5G ED-IF AF-S Zoom-Nikkor
23.4	15.6	52.15	36.13	61	0	24	23.87	0.04		Nikon	12-24mm f/4G ED-IF AF-S DX Zoom-Nikkor
36	24	51.86	35.92	84	0	24	24.03	0.04		Nikon	24-120mm f/3.5-5.6G ED-IF AF-S VR Zoom-Nikkor
36	24	51.86	35.92	84	0	24	24.03	0.04		Nikon	24mm f/2 Nikkor AI-S
36	24	51.86	35.92	84	0	24	24.03	0.04		Nikon	24mm f/2.8D AF Nikkor
36	24	44.53	30.53	74	20	28	28.54	0.04		Nikon	28-100mm f/3.5-5.6G Zoom-Nikkor
36	24	44.53	30.53	74	20	28	28.54	0.04		Nikon	28-105mm f/3.5-4.5D AF Zoom-Nikkor
36	24	44.53	30.53	74	20	28	28.54	0.04		Nikon	28-200mm f/3.5-5.6G ED-IF AF Zoom-Nikkor
36	24	44.53	30.53	74	20	28	28.54	0.04		Nikon	28-70mm f/2.8 ED-IF AF-S Zoom-Nikkor
36	24	44.29	30.36	74	0	28	28.71	0.04	29	Nikon	28-80mm f/3.3-5.6G AF Zoom-Nikkor
36	24	44.29	30.36	74	0	28	28.71	0.04	29	Nikon	28mm f/1.4D AF Nikkor
36	24	44.29	30.36	74	0	28	28.71	0.04	29	Nikon	28mm f/2 Nikkor AI-S
36	24	44.29	30.36	74	0	28	28.71	0.04	29	Nikon	28mm f/2.8D AF Nikkor
36	24	44.29	30.36	74	0	28	28.71	0.04	29	Nikon	28mm f/3.5 PC Nikkor AI-S
36	24	36.17	24.57	62	20	35	35.77	0.06	36	Nikon	35-70mm f/2.8D AF Zoom-Nikkor
36	24	35.95	24.41	62	0	35	36.00	0.06	36	Nikon	17-35mm f/2.8D ED-IF AF-S Zoom-Nikkor
36	24	35.95	24.41	62	0	35	36.00	0.06	36	Nikon	18-35mm f/3.5-4.5D ED-IF AF Zoom-Nikkor
36	24	35.95	24.41	62	0	35	36.00	0.06	36	Nikon	35-200mm f/3.5-4.5 Zoom-Nikkor AI-S
36	24	35.95	24.41	62	0	35	36.00	0.06	36	Nikon	35mm f/1.4 Nikkor AI-S
36	24	35.95	24.41	62	0	35	36.00	0.06	36	Nikon	35mm f/2D AF Nikkor
36	24	28.26	19.05	50	0	45	46.39	0.09	46	Nikon	45mm f/2.8P Nikkor AI-S
36	24	25.81	17.37	46	0	50	50.96	0.10	51	Nikon	50mm f/1.2 Nikkor AI-S
36	24	25.81	17.37	46	0	50	50.96	0.10	51	Nikon	50mm f/1.4D AF Nikkor
36	24	25.81	17.37	46	0	50	50.96	0.10	51	Nikon	50mm f/1.8D AF Nikkor
23.4	15.6	24.08	16.18	28	50	55	54.70	0.17		Nikon	17-55mm f/2.8G ED-IF AF-S DX Zoom-Nikkor
23.4	15.6	24.08	16.18	28	50	55	54.70	0.17		Nikon	18-55mm f/3.5-5.6G ED AF-S DX Zoom-Nikkor
23.4	15.6	24.08	16.18	28	50	55	54.70	0.17		Nikon	55-200mm f/4-5.6G ED AF-S DX Zoom-Nikkor
36	24	22.03	14.79	39	40	60	59.98	0.14		Nikon	60mm f/2.8D AF Micro-Nikkor
23.4	15.6	19.01	12.74	22	50	70	69.63	0.26		Nikon	18-70mm f3.5-4.5G ED-IF AF-S DX Zoom Nikkor
36	24	18.92	12.68	34	20	70	70.03	0.18		Nikon	28-70mm f/2.8 ED-IF AF-S Zoom-Nikkor
36	24	18.92	12.68	34	20	70	70.03	0.18		Nikon	35-70mm f/2.8D AF Zoom-Nikkor
36	24	18.92	12.68	34	20	70	70.03	0.18		Nikon	70-200mm f/2.8G ED-IF AF-S VR Zoom-Nikkor
36	24	18.92	12.68	34	20	70	70.03	0.18		Nikon	70-300mm f/4-5.6D ED AF Zoom-Nikkor
36	24	18.92	12.68	34	20	70	70.03	0.18		Nikon	70-300mm f/4-5.6G AF Zoom-Nikkor
36	24	16.54	11.07	30	10	80	80.27	0.23		Nikon	28-80mm f/3.3-5.6G AF Zoom-Nikkor
36	24	16.54	11.07	30	10	80	80.27	0.23		Nikon	80-200mm f/2.8D ED AF Zoom-Nikkor
36	24	16.54	11.07	30	10	80	80.27	0.23		Nikon	80-400mm f/4.5-5.6D ED VR AF Zoom-Nikkor
36	24	15.59	10.43	28	30	85	85.18	0.26		Nikon	24-85mm f/2.8-4D IF AF Zoom-Nikkor
36	24	15.59	10.43	28	30	85	85.18	0.26		Nikon	24-85mm f/3.5-4.5G ED-IF AF-S Zoom-Nikkor
36	24	15.59	10.43	28	30	85	85.18	0.26		Nikon	85mm f/1.4 Nikkor AI-S
36	24	15.59	10.43	28	30	85	85.18	0.26		Nikon	85mm f/1.4D AF Nikkor
36	24	15.59	10.43	28	30	85	85.18	0.26		Nikon	85mm f/2.8 PC Micro-Nikkor
36	24	13.26	8.86	24	20	100	100.34	0.36		Nikon	28-100mm f/3.5-5.6G Zoom-Nikkor
36	24	12.79	8.55	23	30	105	104.01	0.38	104	Nikon	105mm f/2D AF DC-Nikkor
36	24	12.70	8.48	23	20	105	104.77	0.39		Nikon	105mm f/2.5 Nikkor AI-S
36	24	12.70	8.48	23	20	105	104.77	0.39		Nikon	105mm f/2.8D AF Micro-Nikkor
36	24	12.70	8.48	23	20	105	104.77	0.39		Nikon	28-105mm f/3.5-4.5D AF Zoom-Nikkor
36	24	11.13	7.43	20	30	120	119.63	0.50		Nikon	24-120mm f/3.5-5.6G ED-IF AF-S VR Zoom-Nikkor
36	24	9.75	6.51	18	0	135	136.59	0.65	137	Nikon	135mm f/2.8 Nikkor AI-S
36	24	9.75	6.51	18	0	135	136.59	0.65	137	Nikon	135mm f/2D AF DC-Nikkor
36	24	7.37	4.92	13	40	180	180.53	1.12		Nikon	180mm f/2.8D ED-IF AF Nikkor
36	24	6.64	4.43	12	20	200	200.22	1.37		Nikon	200-400mm f/4G ED-IF AF-S VR Zoom-Nikkor
36	24	6.64	4.43	12	20	200	200.22	1.37		Nikon	200mm f/2G ED-IF AF-S VR Nikkor
36	24	6.64	4.43	12	20	200	200.22	1.37		Nikon	200mm f/4 Micro-Nikkor IF AI-S
36	24	6.64	4.43	12	20	200	200.22	1.37		Nikon	200mm f/4D ED-IF AF Micro-Nikkor
36	24	6.64	4.43	12	20	200	200.22	1.37		Nikon	28-200mm f/3.5-5.6G ED-IF AF Zoom-Nikkor
36	24	6.64	4.43	12	20	200	200.22	1.37		Nikon	35-200mm f/3.5-4.5 Zoom-Nikkor AI-S
36	24	6.64	4.43	12	20	200	200.22	1.37		Nikon	70-200mm f/2.8G ED-IF AF-S VR Zoom-Nikkor
36	24	6.64	4.43	12	20	200	200.22	1.37		Nikon	80-200mm f/2.8D ED AF Zoom-Nikkor
23.4	15.6	6.59	4.40	8	0	200	201.09	2.12		Nikon	18-200mm f/3.5-5.6 ED-IF AF-S VR DX Zoom-Nikkor
23.4	15.6	6.59	4.40	8	0	200	201.09	2.12		Nikon	55-200mm f/4-5.6G ED AF-S DX Zoom-Nikkor
36	24	4.38	2.92	8	10	300	303.04	3.13		Nikon	300mm f/2.8D ED-IF II AF-S
36	24	4.38	2.92	8	10	300	303.04	3.13		Nikon	300mm f/2.8G ED-IF AF-S VR Nikkor
36	24	4.38	2.92	8	10	300	303.04	3.13		Nikon	300mm f/4D ED-IF AF-S Nikkor
36	24	4.38	2.92	8	10	300	303.04	3.13		Nikon	70-300mm f/4-5.6D ED AF Zoom-Nikkor
36	24	4.38	2.92	8	10	300	303.04	3.13		Nikon	70-300mm f/4-5.6G AF Zoom-Nikkor
36	24	3.29	2.20	6	10	400	401.61	5.51		Nikon	200-400mm f/4G ED-IF AF-S VR Zoom-Nikkor
36	24	3.29	2.20	6	10	400	401.61	5.51		Nikon	400mm f/2.8D ED-IF AF-S II Nikkor
36	24	3.29	2.20	6	10	400	401.61	5.51		Nikon	80-400mm f/4.5-5.6D ED VR AF Zoom-Nikkor
36	24	2.66	1.77	5	0	500	495.48	8.41		Nikon	500mm f/4D ED-IF AF-S II Nikkor
36	24	2.66	1.77	5	0	500	495.48	8.41		Nikon	500mm f/8N Reflex Nikkor
36	24	2.21	1.47	4	10	600	594.70	12.15		Nikon	600mm f/4D ED-IF AF-S II Nikkor
20.68	13.79	98.94	75.89	102.4		10	9.99	0.01		Sigma	10-20mm F4-5.6 EX DC HSM
36	24	88.53	66.03	122.0		12	11.99	0.01		Sigma	12-24mm F4-5.6 EX DG ASPHERICAL/ HSM
36	24	79.74	58.22	114.2		14	14.00	0.01		Sigma	14mm F2.8 EX Aspherical / Asperical HSM
36	24	75.31	54.45	110.0		15	15.15	0.01		Sigma	15-30mm F3.5-4.5 EX Aspherical DG DF
36	24	69.05	49.27	103.7		17	16.99	0.02		Sigma	17-35mmF2.8-4 EX DG  Aspherical
20.68	13.79	66.04	46.86	69.3		18	17.98	0.02		Sigma	18-125mm F3.5-5.6 DC
20.68	13.79	66.04	46.86	69.3		18	17.98	0.02		Sigma	18-200mm F3.5-6.3 DC
20.68	13.79	66.04	46.86	69.3		18	17.98	0.02		Sigma	18-50mm F2.8 EX DC
20.68	13.79	66.04	46.86	69.3		18	17.98	0.02		Sigma	18-50mm F3.5-5.6 DC
20.68	13.79	60.68	42.63	63.8		20	19.97	0.02		Sigma	10-20mm F4-5.6 EX DC HSM
36	24	60.62	42.58	94.5		20	20.00	0.02		Sigma	20mm F1.8 EX  Aspherical DG DF RF
36	24	51.97	36.00	84.1		24	23.98	0.02		Sigma	12-24mm F4-5.6 EX DG ASPHERICAL/ HSM
36	24	51.97	36.00	84.1		24	23.98	0.02		Sigma	24-135mm f2.8-4.5 Aspherical IF
36	24	51.97	36.00	84.1		24	23.98	0.02		Sigma	24-60mm F2.8 EX DG
36	24	51.97	36.00	84.1		24	23.98	0.02		Sigma	24-70mm F2.8 EX DG Macro
36	24	51.97	36.00	84.1		24	23.98	0.02		Sigma	24-70mm F3.5-5.6 Aspherical HF
36	24	51.97	36.00	84.1		24	23.98	0.02		Sigma	24mm F1.8 EX  Aspherical DG DF MACRO
36	24	45.41	31.17	75.5		28	27.94	0.03		Sigma	28-70mm F2.8-4 DG High Speed Zoom
36	24	45.33	31.12	75.4		28	27.99	0.03		Sigma	28-105mm F3.8-5.6 UC-III Aspherical IF
36	24	45.33	31.12	75.4		28	27.99	0.03		Sigma	28-105mmF2.8-4 DG Aspherical IF
36	24	45.33	31.12	75.4		28	27.99	0.03		Sigma	28-135mm F3.8-5.6 Aspherical IF Macro
36	24	45.33	31.12	75.4		28	27.99	0.03		Sigma	28-200mm F3.5-5.6 DG Compact  Aspherical Hyperzoom Macro
36	24	45.33	31.12	75.4		28	27.99	0.03		Sigma	28-300mm F3.5-6.3 DG Macro
36	24	45.33	31.12	75.4		28	27.99	0.03		Sigma	28-70mm F2.8 EX DG
36	24	45.33	31.12	75.4		28	27.99	0.03		Sigma	28mm F1.8 EX  Aspherical DG DF MACRO
36	24	42.58	29.13	71.6		30	30.00	0.03		Sigma	15-30mm F3.5-4.5 EX Aspherical DG DF
20.68	13.79	42.55	29.11	45.0		30	30.01	0.04		Sigma	30mm F1.4 EX DC HSM
36	24	36.91	25.08	63.4		35	35.03	0.03		Sigma	17-35mmF2.8-4 EX DG  Aspherical
36	24	26.31	17.72	46.8		50	49.99	0.06		Sigma	50-500mmF4-6.3 EX DG APO RF / RF HSM
36	24	26.31	17.72	46.8		50	49.99	0.06		Sigma	50mm F2.8 EX DG Macro
20.68	13.79	26.27	17.69	27.9		50	50.04	0.09		Sigma	18-50mm F2.8 EX DC
20.68	13.79	26.27	17.69	27.9		50	50.04	0.09		Sigma	18-50mm F3.5-5.6 DC
20.68	13.79	24.00	16.13	25.5		55	54.93	0.11		Sigma	55-200mm F4-5.6  DC
36	24	22.01	14.77	39.6		60	60.09	0.08		Sigma	24-60mm F2.8 EX DG
36	24	18.98	12.72	34.4		70	69.89	0.11		Sigma	24-70mm F3.5-5.6 Aspherical HF
36	24	18.92	12.68	34.3		70	70.10	0.11		Sigma	24-70mm F2.8 EX DG Macro
36	24	18.92	12.68	34.3		70	70.10	0.11		Sigma	28-70mm F2.8 EX DG
36	24	18.92	12.68	34.3		70	70.10	0.11		Sigma	28-70mm F2.8-4 DG High Speed Zoom
36	24	18.92	12.68	34.3		70	70.10	0.11		Sigma	70-200mm F2.8 EX DG APO IF / APO IF HSM
36	24	18.92	12.68	34.3		70	70.10	0.11		Sigma	70-300mm F4-5.6 DG APO Macro
36	24	18.92	12.68	34.3		70	70.10	0.11		Sigma	70-300mm F4-5.6 DG Macro
36	24	16.63	11.13	30.3		80	79.90	0.14		Sigma	80-400mm f4.5-5.6 EX DG APO OS
36	24	13.31	8.90	24.4		100	100.06	0.21		Sigma	100-300mm F4 EX DG APO IF / IF HSM
36	24	12.70	8.48	23.3		105	104.92	0.23		Sigma	105mm F2.8 EX DG Macro
36	24	12.70	8.48	23.3		105	104.92	0.23		Sigma	28-105mm F3.8-5.6 UC-III Aspherical IF
36	24	12.70	8.48	23.3		105	104.92	0.23		Sigma	28-105mmF2.8-4 DG Aspherical IF
36	24	11.09	7.41	20.4		120	120.23	0.30		Sigma	120-300mm F2.8 EX DG APO HSM IF
20.68	13.79	10.69	7.14	11.4		125	124.53	0.55		Sigma	18-125mm F3.5-5.6 DC
36	24	9.87	6.59	18.2		135	135.06	0.38		Sigma	135-400mm F4.5-5.6 DG APO Aspherical
36	24	9.87	6.59	18.2		135	135.06	0.38		Sigma	24-135mm f2.8-4.5 Aspherical IF
36	24	9.87	6.59	18.2		135	135.06	0.38		Sigma	28-135mm F3.8-5.6 Aspherical IF Macro
36	24	8.89	5.93	16.4		150	150.12	0.47		Sigma	150mm F2.8 EX DG APO Macro HSM
36	24	7.84	5.23	14.5		170	170.05	0.59		Sigma	170-500mm F5-6.3 DG APO Aspherical
36	24	7.41	4.94	13.7		180	180.09	0.67		Sigma	180mm F3.5 EX DG APO Macro IF/ IF HSM
20.68	13.79	6.64	4.43	7.1		200	200.35	1.42		Sigma	18-200mm F3.5-6.3 DC
20.68	13.79	6.64	4.43	7.1		200	200.35	1.42		Sigma	55-200mm F4-5.6  DC
36	24	6.64	4.43	12.3		200	200.77	0.83		Sigma	28-200mm F3.5-5.6 DG Compact  Aspherical Hyperzoom Macro
36	24	6.64	4.43	12.3		200	200.77	0.83		Sigma	70-200mm F2.8 EX DG APO IF / APO IF HSM
36	24	4.41	2.94	8.2		300	301.80	1.86		Sigma	100-300mm F4 EX DG APO IF / IF HSM
36	24	4.41	2.94	8.2		300	301.80	1.86		Sigma	120-300mm F2.8 EX DG APO HSM IF
36	24	4.41	2.94	8.2		300	301.80	1.86		Sigma	28-300mm F3.5-6.3 DG Macro
36	24	4.41	2.94	8.2		300	301.80	1.86		Sigma	300mm F2.8 EX DG APO / APO HSM
36	24	4.41	2.94	8.2		300	301.80	1.86		Sigma	70-300mm F4-5.6 DG APO Macro
36	24	4.41	2.94	8.2		300	301.80	1.86		Sigma	70-300mm F4-5.6 DG Macro
36	24	3.33	2.22	6.2		400	399.45	3.25		Sigma	135-400mm F4.5-5.6 DG APO Aspherical
36	24	3.33	2.22	6.2		400	399.45	3.25		Sigma	80-400mm f4.5-5.6 EX DG APO OS
36	24	2.68	1.79	5.0		500	495.48	5.01		Sigma	170-500mm F5-6.3 DG APO Aspherical
36	24	2.68	1.79	5.0		500	495.48	5.01		Sigma	500mm F4.5 EX DG APO / APO HSM
36	24	2.68	1.79	5.0		500	495.48	5.01		Sigma	50-500mmF4-6.3 EX DG APO RF / RF HSM
36	24	1.65	1.10	3.1		800	799.48	13.11		Sigma	800mm F5.6 EX DG APO / APO HSM
23.4	15.6	93.06	70.24	103	29	11	11.09	0.00		Tamron	11-18mm f/4.5-5.6 Di II LD ASPHERICAL [IF]
36	24	69.07	49.29	103	41	17	17.00	0.00		Tamron	17-35mm f/2.8-4 Di LD ASPHERICAL [IF]
23.4	15.6	65.61	46.51	75	32	18	18.15	0.00		Tamron	11-18mm f/4.5-5.6 Di II LD ASPHERICAL [IF]
23.4	15.6	65.61	46.51	75	32	18	18.15	0.00		Tamron	18-200mm f/3.5-6.3 XR Di II LD ASPHERICAL {IF] Macro
36	24	63.24	44.63	97	25	19	19.00	0.00		Tamron	19-35mm f/3.5-4.5
36	24	51.96	36.00	84	3	24	24.01	0.00		Tamron	24-135mm f/3.5-5.6 AD ASPHERICAL [IF} Macro
36	24	51.96	36.00	84	3	24	24.01	0.00		Tamron	24mm f/2.5
36	24	45.35	31.13	75	23	28	28.00	0.00		Tamron	28-105mm f/2.8 LD ASPHERICAL [IF]
36	24	45.35	31.13	75	23	28	28.00	0.00		Tamron	28-105mm f/2.8 LD SPHERICAL [IF]
36	24	45.35	31.13	75	23	28	28.00	0.00		Tamron	28-105mm f/4-5.6 [IF]
36	24	45.35	31.13	75	23	28	28.00	0.00		Tamron	28-200 f/3.8-5.6 ASPHERICAL XR [IF] Macro
36	24	45.35	31.13	75	23	28	28.00	0.00		Tamron	28-200mm f/3.8-5.6 LD ASPHERICAL [IF] SUPER
36	24	45.35	31.13	75	23	28	28.00	0.00		Tamron	28-300 f/3.5-6.3 XR Di ASPHERICAL [IF} Macro
36	24	45.35	31.13	75	23	28	28.00	0.00		Tamron	28-70mm f/3.5-4.5
36	24	45.35	31.13	75	23	28	28.00	0.00		Tamron	28-75mm f/2.8 XR Di ASPHERICAL [IF] Macro
36	24	45.35	31.13	75	23	28	28.00	0.00		Tamron	28-80mm f/3.5-5.6 ASPHERICAL
36	24	36.95	25.11	63	25	35	35.02	0.01		Tamron	17-35mm f/2.8-4 Di LD ASPHERICAL [IF]
36	24	36.95	25.11	63	25	35	35.02	0.01		Tamron	19-35mm f/3.5-4.5
36	24	18.97	12.71	34	21	70	69.99	0.02		Tamron	28-70mm f/3.5-4.5
36	24	18.97	12.71	34	21	70	69.99	0.02		Tamron	70-210mm f/3.5
36	24	18.97	12.71	34	21	70	69.99	0.02		Tamron	70-210mm f/4-5.6
36	24	18.97	12.71	34	21	70	69.99	0.02		Tamron	70-300mm f/4-5.6 LD Macro 1:2
36	24	18.97	12.71	34	21	70	69.99	0.02		Tamron	70-300mm f/4-5.6 LD Macro 1:3.9
36	24	17.72	11.87	32	10	75	75.03	0.02		Tamron	28-75mm f/2.8 XR Di ASPHERICAL [IF] Macro
36	24	16.63	11.13	30	15	80	80.04	0.02		Tamron	28-80mm f/3.5-5.6 ASPHERICAL
36	24	16.63	11.13	30	15	80	80.04	0.02		Tamron	80-210mm f/4.5-5.6
36	24	14.81	9.90	27	2	90	89.99	0.03		Tamron	90mm F/2.8 Di Macro 1:1
36	24	14.81	9.90	27	2	90	89.99	0.03		Tamron	90mm f/2.8 Macro 1:1
36	24	12.71	8.49	23	17	105	105.00	0.04		Tamron	28-105mm f/2.8 LD ASPHERICAL [IF]
36	24	12.71	8.49	23	17	105	105.00	0.04		Tamron	28-105mm f/2.8 LD SPHERICAL [IF]
36	24	12.71	8.49	23	17	105	105.00	0.04		Tamron	28-105mm f/4-5.6 [IF]
36	24	9.90	6.61	18	12	135	135.06	0.06		Tamron	24-135mm f/3.5-5.6 AD ASPHERICAL [IF} Macro
36	24	7.43	4.96	13	42	180	180.09	0.11		Tamron	180mm f/3.5 Di LD [IF] Macro 1:1
36	24	6.69	4.46	12	21	200	199.95	0.14		Tamron	200-500mm f/5-6.3 Di LD [IF}
36	24	6.69	4.46	12	21	200	199.95	0.14		Tamron	28-200 f/3.8-5.6 ASPHERICAL XR [IF] Macro
36	24	6.69	4.46	12	21	200	199.95	0.14		Tamron	28-200mm f/3.8-5.6 LD ASPHERICAL [IF] SUPER
23.4	15.6	6.64	4.43	7	59	200	201.51	0.21	202	Tamron	18-200mm f/3.5-6.3 XR Di II LD ASPHERICAL {IF] Macro
36	24	6.38	4.25	11	46	210	209.94	0.15		Tamron	70-210mm f/3.5
36	24	6.38	4.25	11	46	210	209.94	0.15		Tamron	70-210mm f/4-5.6
36	24	6.38	4.25	11	46	210	209.94	0.15		Tamron	80-210mm f/4.5-5.6
36	24	4.46	2.98	8	15	300	299.96	0.30		Tamron	28-300 f/3.5-6.3 XR Di ASPHERICAL [IF} Macro
36	24	4.46	2.98	8	15	300	299.96	0.30		Tamron	300mm f/2.8 LD [IF]
36	24	4.46	2.98	8	15	300	299.96	0.30		Tamron	300mm f/2.8 LD [IF}
36	24	4.46	2.98	8	15	300	299.96	0.30		Tamron	70-300mm f/4-5.6 LD Macro 1:2
36	24	4.46	2.98	8	15	300	299.96	0.30		Tamron	70-300mm f/4-5.6 LD Macro 1:3.9
36	24	2.67	1.78	4	57	500	500.50	0.85		Tamron	200-500mm f/5-6.3 Di LD [IF}
36	24	2.67	1.78	4	57	500	500.50	0.85		Tamron	500mm f/8
23.4	15.6	88.33	65.85	99	0	12	12.01	0.04		Tokina	12-24mm f/4 AT-X 124 PRO DX
36	24	64.23	45.41	98	40	19	18.59	0.05		Tokina	19-35mm f/3.5-4.5 AF 193
23.4	15.6	52.07	36.08	61	0	24	23.87	0.08		Tokina	12-24mm f/4 AT-X 124 PRO DX
36	24	51.93	35.97	84	10	24	23.96	0.07		Tokina	24-200mm f/3.5-5.6AT-X 242AF
36	24	45.20	31.02	75	20	28	28.02	0.08		Tokina	28-105mm f/3.5-4.8 SZ-X 205
36	24	45.20	31.02	75	20	28	28.02	0.08		Tokina	28-200mm f/3.5-5.3 SZ-X 282
36	24	45.20	31.02	75	20	28	28.02	0.08		Tokina	28-70mm f/2.8 AT-X 287 AF PRO SV
36	24	45.20	31.02	75	20	28	28.02	0.08		Tokina	28-70mm f/3.9-4.8 SZ-X 270-II
36	24	45.20	31.02	75	20	28	28.02	0.08		Tokina	28-80mm f/2.8 AT-X 280AF PRO
36	24	45.20	31.02	75	20	28	28.02	0.08		Tokina	28mm f/2.8 SL 28
36	24	45.20	31.02	75	20	28	28.02	0.08		Tokina	28mm f/2.8 SL 28
36	24	36.90	25.08	63	30	35	34.96	0.11		Tokina	19-35mm f/3.5-4.5 AF 193
36	24	18.87	12.65	34	20	70	70.03	0.36		Tokina	28-70mm f/2.8 AT-X 287 AF PRO SV
36	24	18.87	12.65	34	20	70	70.03	0.36		Tokina	28-70mm f/3.9-4.8 SZ-X 270-II
36	24	17.63	11.81	32	10	60	75.03	0.41	75	Tokina	60-300mm f/4-5.6SZ-X 630
36	24	16.59	11.10	30	20	80	79.81	0.46		Tokina	28-80mm f/2.8 AT-X 280AF PRO
36	24	16.59	11.10	30	20	80	79.81	0.46		Tokina	80-200mm f/2.8 AT-X 828AF PRO
36	24	16.30	10.91	29	50	80	81.21	0.48	81	Tokina	80-400mm f/4.5-5.6 AT-X 840AF-II
36	24	13.30	8.89	24	30	100	99.64	0.70		Tokina	100mm f/2.8 AT-X 100AF PRO D
36	24	12.28	8.20	22	40	105	107.94	0.82	108	Tokina	28-105mm f/3.5-4.8 SZ-X 205
36	24	6.60	4.40	12	20	200	200.22	2.76		Tokina	24-200mm f/3.5-5.6AT-X 242AF
36	24	6.60	4.40	12	20	200	200.22	2.76		Tokina	28-200mm f/3.5-5.3 SZ-X 282
36	24	6.60	4.40	12	20	200	200.22	2.76		Tokina	80-200mm f/2.8 AT-X 828AF PRO
36	24	4.42	2.95	8	20	300	296.95	6.08		Tokina	300mmf/2.8 AT-X 300AF PRO
36	24	4.42	2.95	8	20	300	296.95	6.08		Tokina	60-300mm f/4-5.6SZ-X 630
36	24	3.27	2.18	6	13	400	398.37	11.00		Tokina	80-400mm f/4.5-5.6 AT-X 840AF-II