What are M12 lenses/S-mount lenses ?

M12 lenses, also known as s-mount lenses are compact size lenses useful for a variety of embedded cameras. The barrel of these lenses are machined with M12 threads allowing easy mounting and focusing with M12 lens holder.  M12 lenses are sometimes called board-mount lenses. Please note that other lens mount options are also possible in addition to M12 lens mount. This article compares commonly seen lens mount options.

How to choose a M12 lens/S-mount lens ?

Sunex pioneered the development of M12 lenses/s-mount lenses.  We design and manufacture M12(s-mount) lenses in our own facilities with proven high-quality processes (automotive). We provide a suite of optical calculators (aka optics wizards) for selecting the right M12 lens for your application. Read a step-by-step guide for choosing the right M12 lens/s-mount lens.

Technical tools for assisting lens selection:

• Search for M12 lenses by imager resolution

• Search lens by imager manufacture info

• Solve for lens focal length given imaging setup

• Calculate FOV from EFL or vice versa

• Calculate depth of field (DOF)

Find a M12 lens by CMOS imager specifications

• 1" or larger format lenses

• 1/2" format M12 lenses

• 1/2.3" format M12 lenses

• 1/2.5" format M12 lenses

• 1/3" format M12 lenses

• 1/3.2" format M12 lenses

• 1/4" format M12 lenses

• 1/5" format M12 lenses

• Miniature M12 fisheye lenses and dewarping software

• M12 lenses with FOVEA distortion

Full list of M12 lenses/S-mount lenses:

PN	Description	Focal length(mm)	f/#	Imager Format	Field of view/ Depth of field	Recommended Holder	Sample Price (1-99)	Volume Price
DSL746A-650-F2.8	Low-profile hybrid lens with IR cut filter for 1/3" sensor, EFL=4.9, F/2.8, M8x0.35, metal barrel *CLEARANCE*	4.9	2.8	1/3"	Calculate FOV Calculate DOF		$19 Order Sample	Request Volume Quote
DSL115A-NIR-F2.0	Hybrid lens without IR cut coating for 1/3” format sensors, EFL=4.5, F/2.0, M12x0.5 and M13x0.5, metal barrel *CLEARANCE*	4.5	2	1/3"	Calculate FOV Calculate DOF	CMT107, CMT103 CMT804	$19 Order Sample	Request Volume Quote
DSL386A-NIR-F2.8	Wide-angle, miniature Tailored Distortion™ lens designed for use with 12-14 Megapixel resolution with up to 1/2" format images. F/2.8, EFL= 2.7mm and No IR cut-off filter. *CLEARANCE*	2.7	2.8	1/2"	Calculate FOV Calculate DOF		$19 Order Sample	Request Volume Quote
DSL851C-NIR-F2.8	**DISCONTINUED** Low-profile glass lens with plastic barrel for 1/3" sensor without IR coating, EFL=6, F/2.8, M10X0.5, wrench flat head *CLEARANCE*	6	2.8	1/3"	Calculate FOV Calculate DOF		$19 Order Sample	Request Volume Quote
DSL821C-650-F2.8	Standard glass lens for 1/3" sensor, with IR cut coating at 650nm, EFL=6, F/2.8, M12x0.5. *CLEARANCE*	6	2.8	1/3"	Calculate FOV Calculate DOF		$19 Order Sample	Request Volume Quote
DSL914A-650-F2.8	Glass lens for 1/2" sensor, with 650nm IR cut coating, EFL=9.6, F/2.8, M12x0.5, focus wheel, metal barrel *CLEARANCE*	9.6	2.8	1/2"	Calculate FOV Calculate DOF		$19 Order Sample	Request Volume Quote
DSL900D-650-F3.0	Compact glass lens for 1/2" sensor, with IR cut filter, EFL=9.9, F/3.0, M10x0.5mm, 12mm Metal Barrel *CLEARANCE*	9.9	3	1/2"	Calculate FOV Calculate DOF		$19 Order Sample	Request Volume Quote
DSL900C-NIR-F3.0	Compact glass lens for 1/2" sensor, NO IR cut filter, EFL=9.9, F/3.0, M10x0.5 *CLEARANCE*	9.9	3	1/2"	Calculate FOV Calculate DOF		$19 Order Sample	Request Volume Quote
DSL900B-NIR-F3.0	Compact glass lens for 1/2" sensor, NO IR cut filter, EFL=9.9, F/3.0, M12x0.5 *CLEARANCE*	9.9	3	1/2"	Calculate FOV Calculate DOF		$19 Order Sample	Request Volume Quote
DSL853C-NIR-F2.0	Low-profile glass lens for 1/2" sensor, NO IR cut coating, EFL=8.0, F/2.0, M12x0.5, wrench flats *CLEARANCE*	8	2	1/2"	Calculate FOV Calculate DOF		$19 Order Sample	Request Volume Quote
DSL853C-650-F2.0	Low-profile glass lens with IR cut coating for 1/2" sensor, EFL=8.0, F2.0, M12x0.5, wrench flats *CLEARANCE*	8	2	1/2"	Calculate FOV Calculate DOF		$19 Order Sample	Request Volume Quote
DSL849A-700-F1.9	Low stray light lens for High or Wide Dynamic Range, IR cut-off at 700nm, EFL=6.0, F/1.9, metal barrel threaded M8x0.5. *CLEARANCE ITEM*	5.9	1.9	1/3.2"	Calculate FOV Calculate DOF	CMT830	$19 Order Sample	Request Volume Quote
DSL967C-BP940-F2.0	Low-profile glass lens for 1/2.9" sensor, F/2.0, with IR cutoff coating at 940nm. DISCONTINUED.	5.92	2	1/2.9"	Calculate FOV Calculate DOF		$29 Order Sample	Request Volume Quote
DSL183B-NIR-F2.2	Miniature tailored distortion fisheye lens, without IR cut filter, EFL=1.32mm, F/2.2, M12x0.5 slipfit, metal barrel. Compatible with CMT168. DISCONTINUED PN.	1.32	2.2	1/4"	Calculate FOV Calculate DOF	CMT168-1122F	$29 Order Sample	Request Volume Quote
DSL331F-650-F2.0	Lens, glass, narrow FOV, EFL 19.8mm, F/2.0.  Metal Barrel, M16x0.5mm. IR Cut filter cutoff at 650nm.	19.84	2	1/1.55"	Calculate FOV Calculate DOF		$49 Order Sample	Request Volume Quote
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Didn’t find the lens you’re looking for? Try searching our entire lens database using one of the following options:

• By lens focal length and f/#
• By imager PN or imager key specifications
• Request a free custom lens design
• Contact our support team