In case you are actually considering getting into Native C-Mount lenses, i went through my List of C-Mount Machine-Vision/ CCTV-Lenses and Searched up some Online Prices/ Places that sell those. I only listed Lenses for 2/3" to match the Chronos 1.4 Sensor Size Specifically, and according to you initial Post Similar Focal Length to your Zoom Lenses. Listed are Focal Length from 8 to 16mm, sometimes i included shorter ones too.
Big Advantage of those C-Mount Primes specifically for that Sensor Size is, that you usually can get much Faster and Smaller Lenses than with Canon Mounts. Most of the Lenses Listed below have an Aperture of f/2.8 or way faster.
. Most of those Lenses do come with some kind of Resolution Rating, but i personally would try to get something with a Higher Resolution Rating than what i actually need, because some of those Ratings are somewhat Questionable and sometimes more of a Sales Statement than Facts for Some Manufacturers. Note that the actual Wording for Resolution goes something like (rough translation from German by myself) "Minimal Pixel Size at 30% Contrast", which i quoted as "Pixel-Pitch" in this List. So dont just rely on those Resolution Statements and expect them to actually Match 2MP, if they are rated for that. They might in some/ most situations, but dont in others.
Now, going way overkill with these Lenses Might also dont Make too much sense, as Budget probably also isnt infinite, so i just listed about everything that would make sense on Paper. Watch out for the Compatibility note i put on the End of the Post!
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Let me know if you need something more Specific, or if that List helped you any. Can List Plenty more C-Mount Lenses, that might also make sense, if you ever plan to go with some other 1" Camera or even 4/3" like the 2.1.
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Computar High-Res
https://www.bhphotovideo.com/c/product/888985-REG/computar_M0814_MP2_2_3_Fixed_Lens.html https://www.bhphotovideo.com/c/product/888992-REG/computar_M1214_MP2_2_3_Fixed_Lens.html https://www.bhphotovideo.com/c/product/888996-REG/computar_M1614_MP2_2_3_Fixed_Lens.html Those are for 2/3“ and are recommended for a Pixel-Pitch of 4,4µm or less (the 1.4 has 6,6µm; so the lens should technically match the Camera Resolution).
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Computar High-Res 5MP
https://www.bhphotovideo.com/c/product/1653996-REG/computar_m0828_mpw3_c_mount_2_3_8mm.html
https://www.bhphotovideo.com/c/product/1305341-REG/computar_m1224_mpw2_2_3_12mm_f2_4_5_0.html https://www.bhphotovideo.com/c/product/1626335-REG/computar_m1628_mpw3_c_mount_16mm_machine_vision.html These are Rated for 5MP Resolution 2/3” Sensors, recommended for a Pixel-Pitch of 3,4µm or less.
Basically the Same Lenses like above, but should be Sharper, at the cost of a Smaller Aperture.
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Computar High-Res 5MP for Outdoor use
https://www.bhphotovideo.com/c/product/1305321-REG/computar_m0918fic_mp_2_3_9mm_f1_8_5_0.html https://www.bhphotovideo.com/c/product/1305405-REG/computar_m1218fic_mp_2_3_12mm_f1_8_5_0.html https://www.bhphotovideo.com/c/product/1305343-REG/computar_m1616fic_mp_2_3_16mm_f1_8_5_0.html These are also Rated for 5MP @ 2/3” Sensor Size/ 3,4µm Pixel-Pitch, but are meant for Outdoor CCTV, which means they will provide the Same Sharpness also in IR-Lit Night-time Situations (given your Camera even captures them). Basically the Same Lenses, but corrected for a larger Spectral Range of Light, with a Larger Aperture than the above 5MP (Standard) Lenses.
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Common Vision Optics/Goyo Optical 2- /3- Megapixel Lenses
https://www.rmaelectronics.com/goyo-optical-gmthr38014mcn/ https://www.rmaelectronics.com/goyo-optical-gmxhr38014mcn/ https://www.rmaelectronics.com/goyo-optical-gmthr31214mcn/ https://www.rmaelectronics.com/goyo-optical-gmxhr31218mcn/ https://www.rmaelectronics.com/goyo-optical-gmthr31614mcn/ https://www.rmaelectronics.com/goyo-optical-gmxhr31614mcn/ These come in GMTHR- and GMXHR- Variants, but only difference I can find, is that the GMXHR- are rated 3MP according to my List, and the GMTHR- ones are only listed as 2MP Resolution, these are also cheaper by a little. The Website however says, both are 3MP, not sure what is correct here.
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Common Vision Optics/Goyo Optical 5 Megapixel Lenses
https://www.rmaelectronics.com/goyo-optical-gmb5hr38014mcn/ https://www.rmaelectronics.com/goyo-optical-gma5hr31218mcn/
https://www.rmaelectronics.com/goyo-optical-gmr5hr31614mcn/ Rated for 5MP @ 2/3” Sensor Size, so should be sharper than the 2-/3-MP ones above.
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Common Vision Optics/Goyo Optical 12 Megapixel Lenses
https://www.rmaelectronics.com/goyo-optical-gm12hr39014mcn/ https://www.rmaelectronics.com/goyo-optical-gm12hr31216mcn/ https://www.rmaelectronics.com/goyo-optical-gm12hr312514mcn/ https://www.rmaelectronics.com/goyo-optical-gm12hr31814mcn/ Rated for 12MP@ 2/3” Sensor Size, Should be the Sharpest, but not sure if you would even be able to tell much Difference on the Chronos 1.4 Sensor, because of the Low Sensor Resolution. Should however be Stellar Optics, and offer very short Minimum Focus Distance. Plenty of overkill for the 1.4 though.
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Fujinon Lenses
https://www.bhphotovideo.com/c/product/1470037-REG/fujinon_hf9ha_1s_2_3_9mm_1_5_megapixel.html?sts=pi-ps&pim=Y https://www.bhphotovideo.com/c/product/1470038-REG/fujinon_hf12_5ha_1s_2_3_12_5mm_1_5_megapixel.html https://www.bhphotovideo.com/c/product/1470032-REG/fujinon_hf16ha_1s_2_3_16mm_1_5_megapixel.html Rated for 1,5MP @ 2/3” Senor Size. Not sure if I would actually recommend buying those, as the Resolution barely matches, but still wanted to put them into this list here, as they also have an inexpensive 6mm Option, if you needed something even wider. (There is plenty of even Lower Resolution Lenses with C-Mounts but these at least match Resolution on Paper… How well they would perform in Reality would have to be tested?).
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Fujinon 5MP Lenses
https://www.bhphotovideo.com/c/product/404222-REG/Fujinon_HF125SA1_HF12_5SA_1_2_3_12_5mm_F1_4.html?sts=pi&pim=Y https://www.bhphotovideo.com/c/product/404220-REG/Fujinon_HF16SA1_HF16SA1_2_3_16mm_F1_4.html Rated for 5MP @ 2/3” Sensor Size.
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Kowa 2MP Vibration Resistant Lenses
https://www.bhphotovideo.com/c/product/1648600-REG/kowa_lm8jcm_v_jcm_v_series_c_mount_8mm.html https://www.bhphotovideo.com/c/product/1627903-REG/kowa_lm12jcm_v_2_3_megapixel_12mm_c_mount.html https://www.bhphotovideo.com/c/product/1648576-REG/kowa_lm16jcm_v_jcm_v_series_c_mount_16mm.html Rated for 2MP @ 2/3” Sensor Size, Lenses are Fixed Aperture for Less Moving Parts to increase Vibration Resistance.
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Kowa 5MP Lenses
https://www.bhphotovideo.com/c/product/1648422-REG/kowa_lm8jc3m2_c_mount_8mm_f_1_4_2_3.html https://www.bhphotovideo.com/c/product/1648404-REG/kowa_lm12jc5m2_c_mount_12mm_f_1_4_16_2_3.html https://www.bhphotovideo.com/c/product/1648573-REG/kowa_lm12jc5mc_c_mount_12mm_f_2_8_16_2_3.html https://www.bhphotovideo.com/c/product/1648408-REG/kowa_lm16jc5m2_c_mount_16mm_f_1_4_16_2_3.html Rated for 5MP @ 2/3“ according to my List and also the Website, but according to Kowa´s naming Scheme the 8mm would only be rated for up to 3MP Resolution, not sure what is going on there. Should still all be well sharp enough for the Chronos 1.4.
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Kowa 10MP Lenses
https://www.bhphotovideo.com/c/product/1648421-REG/kowa_lm8jc10m_c_mount_8mm_f_1_4_22_2_3.html https://www.bhphotovideo.com/c/product/1058653-REG/kowa_lm12jc10m_c_mount_12mm_f_1_8_11_2_3.html https://www.bhphotovideo.com/c/product/1058656-REG/kowa_lm16jc10m_c_mount_16mm_f_1_8_16_2_3.html Rated for up to 10MP @ 2/3“ Sensor Size.
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Qioptiq MeVis-C
https://www.qioptiq-shop.com/en/Precision-Optics/LINOS-Machine-Vision-Solutions/LINOS-Machine-Vision-Lenses/MeVis-C.html 12mm and 16mm Lenses are Rated for up to 14,5MP @ 2/3”, the Longer Focal Lengths of this Series are Rated for up to 30,7MP @ 1”.
Sadly couldn’t find any Shop that would state a Price of those, on Request only, so these are going to cost you some Money.
These should however be about the Best lenses for that Sensor Format you can get, about on par with decent Cine-Lenses in terms Of Image Quality, from what I heard from a friend that owns a kit of those.
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Ricoh 2MP Standard Lenses with Short 0,1m Minimum Focus Distance
https://www.baslerweb.com/en/products/vision-components/lenses/ricoh-lens-fl-cc0614a-2m-f1-4-f6mm-2-3/ https://www.baslerweb.com/en/products/vision-components/lenses/ricoh-lens-fl-cc0814a-2m-f1-4-f8mm-2-3/ https://www.baslerweb.com/en/products/vision-components/lenses/ricoh-lens-fl-cc1214a-2m-f1-4-f12mm-2-3/ https://www.baslerweb.com/en/products/vision-components/lenses/ricoh-lens-fl-cc1614-2m-f1-4-f16mm-2-3/ Rated for up to 2MP @ 2/3” Sensor Size, so Resolution should match the Chronos 1.4 Sensor.
These Lenses Also Feature a Short 0,1m Minimum Focus Distance on rather Inexpensive Lenses, which could be useful, if you ever plan on doing any kind of Closeup / Wide-Angle Closeup Work with them. A lot of my Personal C-Mounts have MFD of 0,15 to 0,3m, which is really nice to have, as I rarely feel the Need to even get dedicated Macro Lenses.
The 16mm one of this Series should also be available as FL-CC1614
A-2M, but I couldn’t find it Online. The Version without the –A on the End has an Minimum Focus Distance of 25cm, which is still not too bad.
These sadly seem to be out of stock everywhere I looked currently, and on-Request-Only Order.
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Ricoh 5MP High-Res Lenses
https://aegoptics.com/product/fl-cc0814-5m-ricoh-lens/ https://aegoptics.com/product/fl-cc1614-5m-ricoh-lens/ [Attention, these Lenses seem to have a huge Rear Element, that for sure should not fit the C- to CS-Mount Spacer, so you would need some other adapter to mount that one. Or just get an Longer Thread insert made for the Camera, that’s just a Ring with two Threads anyways.]
Rated for 5MP @ 2/3” Sensor Size, should be Sharper than the 2MP Versions above, but less different Focal Length available. Bigger and heavier also.
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Schneider-Kreuznach High Resolution Compact Prime Lenses
https://www.bhphotovideo.com/c/product/284176-REG/Schneider_21_1001919_21041823_2_3_8mm_F1_4.html/qa https://www.bhphotovideo.com/c/product/284177-REG/Schneider_21_1001951_21022892_2_3_12mm_F1_4.html https://www.stemmer-imaging.com/en/products/series/schneider-kreuznach-23-lenses-3mp/ These are rated for 3,5µm Minimum Pixel Size, and my List says 3 to 5 MP Maximum Resolution, whatever that means.
Should be well corrected and Robust Lenses, with an Focus-Locking Mechanism that for sure shouldn’t come Loose.
Available in Focal length: 4.8 mm, 8 mm, 12 mm, 17 mm, 23 mm, 35 mm
But I was only able to track down Online Prices for the 8mm and 12mm Versions from a Quick Search.
B&H lists those as “This item is noncancelable and nonreturnable.” Btw.
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Tamron Standard C-Mount Lenses
https://www.vision-dimension.com/en/lenses/ccs-mount-lenses/monofocal-lenses/8-mm-c-mount-lens-tamron-219hb/554 https://www.vision-dimension.com/en/lenses/ccs-mount-lenses/monofocal-lenses/12-mm-c-mount-lens-tamron-25hb/555 https://www.vision-dimension.com/en/lenses/ccs-mount-lenses/monofocal-lenses/16-mm-c-mount-lens-tamron-17hf/559 These are Listed as “up to 1,3MP Resolution at 2/3” Sensor Size” in my List, Website says 1 to 2 MP Resolution, so I doubt that you would be able to get the Full Resolution Potential out of the Chronos 1.4 Sensor with those Lenses, so I would not recommend buying those. Especially, because they cost more new than some of the Other Options, which seem to be much Sharper just from the Mega-Pixel Ratings those are sold at. However, If you are Able to find those used, those are usually pretty cheap, so that might be an option if you don’t want to spend a lot of Money. But don’t expect crazy amazing results, if they even Rate it at 1MP, actual Resolution might be even worse.
https://industrialusa.com/products/tamron-219hb-reconditioned Maybe even Cheaper on Ebay and such, haven’t searched there yet, just did a very Quick Search.
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Tamron High Resolution Lenses with Small Minimum Focus Distance
https://www.bhphotovideo.com/c/product/1042323-REG/tamron_m23fm06_c_mount_6mm_f_1_8_22_2_3.html https://www.bhphotovideo.com/c/product/1042324-REG/tamron_m23fm08_c_mount_8mm_f_1_8_22_2_3.html https://www.bhphotovideo.com/c/product/1042325-REG/tamron_m23fm12_c_mount_12mm_f_1_8_22_2_3.html https://www.bhphotovideo.com/c/product/1042326-REG/tamron_m23fm16_c_mount_16mm_f_1_8_22_2_3.html These are rated for a Minimum Pixel Pitch of 2,5µm. My List states a Resolution of 10MP @2/3” Sensor Size, but the Website does only mention a Maximum Resolution of up to 6MP on the Page of the 8mm Lens, so again not too sure what is correct here.
Tamron also has an even more Expensive Series of C-Mount-Primes, which are Specifically Vibration-Resistant, didn’t list those here.
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An important thing to note is, that some of these Wide Angle-Lenses will not be Compatible with a Standard C-Mount to CS-Mount Spacer (the 5mm Ring that came with the Camera) because they have a Rear Element that Protrudes too far into the Mount. To make sure they fit the C-Mount Spacer Ring, I Recommend To contact the Seller or Manufacturer and ask, before you actually buy any of the 12mm or Shorter Focal Length, everything longer than 12mm should usually be fine (only lenses above 12mm Focal Length I know with Super Huge Rear Elements are Super-Fast C-Mounts like the 25mm 0,85 and such, but there are for sure other ones i dont know about.)