Lenses · Bi-telecentric

Bi-telecentric lenses

In a standard telecentric lens, constant magnification is guaranteed only on the object side. A bi-telecentric lens keeps rays parallel on the sensor side as well — removing the residual dependence of magnification on sensor position and markedly reducing distortion. Chosen where measurement is in microns: precision parts, inspection against a master, metrology benches.

Price on requestAn engineer will confirm pricing and lead time in the first reply.

Warranty: 36 months

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Specifications

Operating temperature	–10 °C to 50 °C (14 °F to 122 °F)
Distortion	≤ 0.1%; < 0.1%; ≤ 0.045%; ≤ 0.01%

Part numbers and versions

1″–2″ sensors

Part number	PN	Magnification	Working distance	Aperture	Depth of field	Mount
MVL-KBT-0085-372	365007166	0.085×	372 mm	—	±60.9 mm@F11	—
MVL-KBT-0087-330	365010967	0.087×	330 ± 5 mm	F6.5	± 84.6 mm @ F16	C-mount
MVL-KBT-0108-318	365010145	0.108×	318 ± 5 mm	F6.2	± 37.7 mm @ F11	C-mount
MVL-KBT-0122-288	365009766	0.122×	288 ± 5 mm	F6.5	± 43 mm @ F16	C-mount
MVL-KBT-0138-273	365002656	0.138×	273 ± 5 mm	F6.5	± 33.4 mm @F16	C-mount
MVL-KBT-0153-273	365004433	0.153×	273 ± 5 mm	F6.2	± 18.7 mm @F11	C-mount
MVL-KBT-0166-238	365003388	0.166×	238 ± 4 mm	F6.5	± 23.2 mm @F16	C-mount
MVL-KBT-0167-263	365007524	0.167×	263 mm ± 4 mm	F6.2	±15.8 mm @ F11	C-mount
MVL-KBT-0175-160	365007152	0.175×	160 mm	—	10.4 mm	—
MVL-KBT-0184-208	365003335	0.184×	208 mm	F6.5	± 18.9 mm @ F16	C-mount
MVL-KBT-0184-238	365004102	0.184×	238 mm	F6.2	± 13.0 mm @ F11	C-mount
MVL-KBT-0204-208	365004223	0.204×	208 ± 3 mm	F6.2	± 10.5 mm @F11	C-mount
MVL-KBT-0208-228	365002694	0.208×	228 ± 4 mm	F6.5	± 14.8 mm @F16	C-mount
MVL-KBT-0230-228	365003047	0.23×	228 ± 4 mm	F6.2	± 12.1 mm @F16	C-mount
MVL-KBT-0231-178	365003334	0.231×	178 mm	F6.5	± 12 mm @F16	C-mount
MVL-KBT-0256-178	365002164	0.256×	178 ± 3 mm	F6.2	± 6.7 mm @F11	C-mount
MVL-KBT-0259-158	365005262	0.259×	158 mm	—	±9.5 mm@F16	—
MVL-KBT-0288-158	365002265	0.288×	158 ± 3 mm	F6.2	± 7.8 mm @F16	C-mount
MVL-KBT-0296-138	365003896	0.296×	138 ± 3 mm	F6.5	± 7.3 mm @F16	C-mount
MVL-KBT-0315-350-C	365006575	0.315×	350 mm	—	±6.5 mm@F16	—
MVL-KBT-0322-208-M42	365008163	0.322×	208 mm	—	±6.1@F16	—
MVL-KBT-0329-138	365002292	0.329×	138 ± 3 mm	F6.2	± 4 mm @F11	C-mount
MVL-KBT-0346-128	365004183	0.346×	128 ± 3 mm	F6.5	± 5.3 mm @F16	C-mount
MVL-KBT-0363-228-M42	365010754	0.363×	228 ± 4 mm	F6.8	± 4.9 mm @ F16	M42 × 1
MVL-KBT-0377-82	365008427	0.377×	82 mm ± 1 mm	F6.5	±3.1 mm@F11	C-mount
MVL-KBT-0383-128	365002916	0.383×	128 ± 3 mm	F7.2	± 4.3 mm @F16	C-mount
MVL-KBT-0395-118	365001827	0.395×	118 ± 3 mm	F6.5	± 4.1 mm @F16	C-mount
MVL-KBT-0403-178-M58	365009912	0.403×	178 ± 3 mm	F8.5	± 3.9 mm @ F16	M58 × 0.75
MVL-KBT-0438-118	365002239	0.438×	118 ± 3 mm	F7.2	± 3.3 mm @F16	C-mount
MVL-KY-046-110	102202609	0.46×	110 ± 2 mm	F7.8	± 3.0 mm @F16	C-mount
MVL-KBT-046-110	365008086	0.46×	110 mm ± 2 mm	F7.8	± 3 mm @ F16	C-mount
MVL-KBT-0503-48	365004696	0.503×	48 ± 1 mm	F6.5	± 1.7 mm @F11	C-mount
MVL-KBT-0511-110	365003260	0.511×	110 mm	F8.7	± 3 mm @F20	C-mount
MVL-KBT-0634-45	365001235	0.634×	45 ± 1 mm	F6.2	± 1.0 mm @F11	C-mount
MVL-KBT-0638-73	365007391	0.638×	73 mm ± 1 mm	F8.7	± 1.6 mm @ F16	C-mount
MVL-KBT-069-118-M42	365007608	0.69×	118 mm ± 3 mm	F11.4	± 1.6 mm @ F20	M42 × 1
MVL-KBT-0708-73	102202993	0.708×	73 ± 1 mm	F9.6	± 1.6 mm @F20	C-mount
MVL-KBT-0806-110-M42	365008071	0.806×	110 mm	—	±1.2@F20	—

Sensors up to 1/1.8″

Part number	PN	Magnification	Working distance	Aperture	Depth of field	Mount
MVL-HBT-009-238	365003298	0.09×	238 ± 4 mm	F4.6	± 54.3 mm @F11	C-mount
MVL-HBT-0100-178	365005570	0.1×	178 mm	—	±44 mm@F11	—
MVL-HBT-0113-158	365008764	0.113×	158 mm ± 3 mm	F4.2	± 34.8 mm @F11	C-mount
MVL-HBT-0125-158	365009505	0.125×	158 mm	—	±28.2mm@F11	—
MVL-HBT-0141-158	365005160	0.141×	158 mm	—	±22.3 mm @F11	—
MVL-HBT-0171-118	365004245	0.171×	118 ± 3 mm	F4.2	± 15 mm @F11	C-mount
MVL-HBT-019-118	365005328	0.19×	118 mm	—	±12.1 mm @F11	—
MVL-HBT-0214-118	365006184	0.214×	118 mm	—	±9.6 mm@F11	—
MVL-HBT-0381-40*	365007516	0.381×	40 mm ± 1 mm	F6.8	± 4.4 mm @ F16	C-mount

2/3″ sensors

Part number	PN	Magnification	Working distance	Aperture	Depth of field	Mount
MVL-MBT-0095-273	365006221	0.095×	273 mm	—	±48.8 mm@F11	—
MVL-MBT-0158-178	365003309	0.158×	178 mm	F4.9	± 17.6 mm @F11	C-mount
MVL-MBT-0178-158*	365007193	0.178×	158 mm ± 3 mm	F4.9	± 13.9 mm @ F11	C-mount
MVL-MBT-0204-138*	365007082	0.204×	138 mm ± 3 mm	F4.9	±10.5 mm @ F11	C-mount
MVL-MBT-0238-128	365002478	0.238×	128 ± 3 mm	F5.4	± 7.7 mm @F11	C-mount
MVL-MBT-0271-118	365005871	0.271×	118 mm	—	±6.0 mm @F11	—
MVL-MBT-0317-110	365001981	0.317×	110 ± 2 mm	F5.4	± 4.3 mm @F11	C-mount
MVL-MBT-0438-73	365001421	0.438×	73 ± 1 mm	F6	± 2.3 mm @F11	C-mount
MVL-MBT-05-65	365001062	0.5×	65 ± 1 mm	F5	± 0.8 mm @F5	C-mount

Large format, 2″ and above

Part number	PN	Magnification	Working distance	Aperture	Depth of field	Mount
MVL-LBT-0163-410-F	365006564	0.163×	410 mm ± 6 mm	F7.5	± 24.3 mm @ F16	F-mount
MVL-LBT-0163-410-M58	365010756	0.163×	410 ± 6 mm	F7.5	± 24.3 mm @ F16	M58 × 0.75
MVL-LBT-0205-330-F	365006752	0.205×	330 mm ± 5 mm	F6.5	± 10.5 mm @ F11	M58 × 0.75
MVL-LBT-039-238-F	365003222	0.39×	238 ± 4 mm	F9.2	± 4.2 mm @F16	F-mount
MVL-LBT-0489-208-M72-10.1	365002949	0.489×	208 mm	F11.5	± 3.3 mm @F20	M72 × 0.75
MVL-LBT-0497-288-M72-19.5	365008369	0.497×	288 mm ± 5 mm	F12.2	± 3.2 mm @F12.2	M72 × 0.75
MVL-LBT-0696-138-M58	365003878	0.696×	138 ± 3 mm	F13.1	± 1.6 mm @F20	M58 × 0.75
MVL-LBT-0738-228-M58	365009021	0.738×	228 mm ± 4 mm	F9.9	± 1.6 mm @ F22	M58 × 0.75
MVL-LBT-0929-118-M72-19.5	365003081	0.929×	118 mm	F15.3	± 0.9 mm @F20	M72 × 0.75
MVL-LBT-0929-118-M58	365006710	0.929×	118 mm ± 3 mm	F15.3	± 0.9 mm @ F20	M58 × 0.75
MVL-LBT-1-102-M72	365009286	1×	102 ± 2 mm	F7	± 0.3 mm @ F7	M72 × 0.75
MVL-LBT-1-162-M72-19.5	365002940	1×	162 mm	F8	± 0.3 mm @F8	M72 × 0.75
MVL-LBT-1-162-M58	365003190	1×	162 mm	—	—	—
MVL-LBT-1-162-G-M72	365007278	1×	162 mm ± 2 mm	F8 to F32	0.64 mm to 1.76 mm	M72 × 0.75
MVL-LBT-1083-110-M58	365005158	1.083×	110 mm	—	±0.65 mm@F20	—
MVL-LBT-165-40-M58	365006613	1.65×	40 mm ± 1 mm	F6.2	± 0.2 mm @ F16	M58 × 0.75
MVL-LBT-2-102-G-M58	365006706	2×	102 mm	F8 to F32	0.16 mm to 0.64 mm	M58 × 0.75

How to choose

Look at distortion, telecentricity and the lens's own resolution — all three limit measurement accuracy, not just one. Depth of field on bi-telecentric lenses is quoted with an aperture condition (for example "± 18.9 mm @ F16"): at a different aperture the figure changes.

FAQ

Why choose bi-telecentric rather than object-side telecentric optics?

A standard telecentric lens guarantees constant magnification only on the object side. A bi-telecentric design also keeps rays parallel on the sensor side, reducing distortion and the dependence of magnification on sensor position during precision measurement.

Which values should be fixed before comparing lens part numbers?

Fix the camera sensor group, required magnification, available working distance, listed optical diameter and mount. The range spans 0.085× to 2× and 40 mm to 410 mm, so magnification and stand-off need to be evaluated as a pair.

How are the four bi-telecentric lens groups separated?

MVL-HBT covers sensors up to 1/1.8″, MVL-MBT covers 2/3″, MVL-KBT covers 1″–2″, and MVL-LBT is the large-format group for 2″ and above. Select the format group before narrowing by magnification and distance.

What mounting options appear across the lens range?

C-mount appears throughout the smaller-format entries. The table also includes M42 × 1, F-mount, M58 × 0.75 and M72 × 0.75 options. Mount thread and the listed optical diameter both need to match the selected camera configuration.

Why must aperture be considered when checking depth of field?

Depth of field is quoted with an aperture condition, such as ± 18.9 mm at F16. A different aperture changes that depth figure. Distortion, telecentricity and lens resolution must also remain part of the accuracy check.