HELP WITH THERMAL IMAGER CORE FROM A BOSCH MIC412. (FORWARD VISION) - Page 1
Forum section: electronics / general

author: dreamc
author_rank: Newbie
timestamp: April 29, 2017, 07:45:13 pm
content: Hi everyone.I have a MIC 412 Thermal imager module and the PCB and was wondering if anyone can help me making it work standalone without going through the nMIC412.Long story short I have a mic 412 in bits as it was badly damaged.. I thought these things were supposed to last the harshest of environments...I really wanted to build a housing for it, maybe 3d print or whatever and make it work as an attachment for maybe a drone or something else. or even just stick in a CCTV camera enclosure and have a fixed thermal imager for my back gardenCan someone help?CheersMarco

author: Fraser
author_rank: Super Contributor
timestamp: April 29, 2017, 09:31:44 pm
content: The Thermal camera core in the MIC412 is a FLIR Photon in bare chassis format.If you register on the FLIR support web site you can download the Photon core manual and all the information that is needed to connect the camera as a simple power in, video out setup. Communications with the camera is via RS232 protocol at UART levels. It provides composite video out.Read my TAU repair thread on this forum for details of how I interfaced with a TAU which is very similar.The utility to control and configure the Photon core is available for free download from the FLIR support pages.Hope this helpsFraser

author: Fraser
author_rank: Super Contributor
timestamp: April 30, 2017, 01:15:06 pm
content: With regard to the ruggedness of the Bosch MIC cameras........ they are extremely rugged. They are made from Billet aluminium and the head shell is almost an inch thick ! The 'cap' slides onto the head with such precision you can hear the air being pushed out before the O ring seal is reached. Once fully down into the head, the cap is hard to remove.The faceplate is a vulnerability as it is a flat plate with O ring seals and relatively thin glass/Germanium windows. To break such you would need a hammer though. The seals around the head pivots are what you would expect to find on a mini submersible and are of Stainless steel with O ring pivot seals.During testing the cameras are vacuum tested for leaks and full submersed in a water bath. They are rated as submersible but I cannot recall the depth rating or duration.Any ruggedised enclosure can fail in service. Paint coatings can be breached allowing corrosion to form underneath and O ring seals can age or fail. Like any high performance ruggedised product, they all need some level of condition monitoring and maintenance to ensure the longevity of the service life. Military tanks, weapons and deep sea submersibles all need maintenance and inspection.Any MIC that is in a terrible state of corrosion or that has suffered seal failure has not been monitored or maintained. Such is not uncommon in 'set and forget' situations where casual access to the camera after installation is very difficult or dangerous. Oil Platforms are often an example of such decisions. The camera is used until it fails or degrades and is then replaced as part of a major maintenance uplift. The value of the Camera is depreciated over it predicted life of approx 10 years and then it becomes scrap.I do not know the history of your cameras but the fact that the camera modules still work suggests that at least the head seals did not fail completely as water inside the head globe would damage the thermal camera optics quite quickly.Sadly equipment that is ruggedised is exposed to very harsh working conditions and so used examples can be in very battered condition.One of my MIC412's was standard fitment on our armoured fighting plarforms in Iraq, so the 412 is rugged enough for Military deployment on armoured vehicles. That says a lot for its design.The down side of the 412 is its size and weight. Small and light it is not ! This may explain their low value on the secondary market. I paid £400 for one.The thermal camera module is not the usual compact FLIR Photon mini camera module that we often see inside CCTV housings etc. It is an open chassis design that would need to be placed inside some protection for use outside the 412. I assume the chassis was used as the heavy duty head casing provides all the required dust, moisture and impact protection.The Photon is not a bad little camera thoughFraser

author: Fraser
author_rank: Super Contributor
timestamp: May 01, 2017, 11:00:31 am
content: Further to my last on the damage to your MIC412 camera shells.Your cameras were providing service in a salt air environment at a Royal Navy base. Salt air and spray is a truly vicious medium for the corrosion of many metals. The baked enamel paint around the edges of your cameras ports suffered failure that lead to corrosive fluid ingress under the paint and associated blistering as the metal oxide expanded.Your cameras actually look to be in pretty good condition from the outside. I have seen far worse condition MIC series cameras. Some that have been serving on North Sea Oil platforms have virtually no paint left on them and are covered in corrosion....... yet they still function well. The thermal MIC cameras do have a potential performance limiter in the form of the thermal camera window. Thus can suffer heavy corrosion over time in salt air environments. Eventually the corrosion will impact upon the image produced but the effect is often far less than dirt on visible light camera lenses and windows until the window is pretty much covered in flaking corrosion. Fire fighting cameras suffer the same damage over time.Fraser

author: Fraser
author_rank: Super Contributor
timestamp: May 01, 2017, 04:14:12 pm
content: I assumed you bought these from eBay at £250 each ...... I do not miss seeing much thermal camera kit sold through that auction siteTwo sold recently and you just bought a pair ...... maybe yours were not the same cameras but it seemed quite a co-incidence 😉http://pages.ebay.com/link/?nav=item.view&alt=web&id=292081157425&globalID=EBAY-GBMIC412 cameras are not that common and I know most of the sellers of used ones in the UK. My friend in Cornwall is a major source of Ex MoD MIC cameras but he did not sell a pair of cameras together recently.Fraser

author: Fraser
author_rank: Super Contributor
timestamp: July 15, 2017, 09:06:51 pm
content: Hi Marco,I was contacted by the seller of your cameras. He wanted my advice on his remaining MIC thermal camerasThat was his auction and he sold the two cameras to a friend of mine. My friend then sold them for £700 each ! Not a bad profit when he paid £250 for them.The seller has some more knackered 412's and some good 612's. The 612 is much the same camera as the 412 but with the later TAU thermal camera rather than the Photon. The Photon camera went obsolete. The TAU and TAU 2 outperform the Photon camera. The TAU is a new generation of compact camera 'core' with much better noise processing.The 612 in working order sells for around £1000 but I have seen them sold for £2500 and more, depending upon condition. They are good cameras but to sell them you need a certain sort of customer. Many thermal camera users want portable cameras and the MIC cameras are not exactly portable. professional users tend not to buy used cameras on eBay or similar. They may buy from a trusted CCTV installer like my friend though as he provides support.Faults in the MIC camera head can be expensive to repair.Before buying these MIC series cameras, it should be clearly understood that they are specialist CCTV, non-radiometric, and often with limited colour palettes. I have recently been getting some amazing deals on thermal cameras that are better for everyday use. Most bought in the £100 to £250 range and producing better images than that of the MIC412 or 612.The window in front of the Photon lens is made from Germanium. It becomes pitted due to water induced corrosion. The putting will eventually become so severe that it effects image quality due to loss of the essential AR coating. A badly pitted window is pretty much scrap. A pitted window has little or no value to a user of a thermal camera. Scrap prices for pure Germanium are around $1/g but thermal camera lenses and windows have an AR coating that is considered contamination. You are unlikely to find a buyer for shall quantities of Germanium lenses or windows and even if you do, they will pay nothing like 1$/g. Been there, done thatFraser

author: Fraser
author_rank: Super Contributor
timestamp: July 17, 2017, 07:52:21 pm
content: Wow !I wondered why he was asking me about repairing them and then I heard nothing more. I wanted to buy a 612 but I can understand him wanting to shift the lot as one.What does it look like happened to the 412's ? They have good waterproof seals. Had water entered around the pivots of faceplate I wonder. Even full submersion does not normally kill them as they are designed for that and tested during production.I saw another seller asking £1700 for a 412 that very obviously had become flooded with water inside the sphere head. The rust was all over the inside of the visible light cameras front glass window. I advised the seller of such yet he still continued to offer it for sale with no mention of the damage. He did sell it in the end for around £1400 ! I feel so sorry for the buyer. Likely total scrap. Bear in mind I paid £400 for a near mint 412 only weeks before.Ok, to your cameras. So even the camera modules in the 412's are destroyed? If so, that was where your residual value would have been. What about the 50mm lenses ? Corroded ?IIRC, one of the 612's has a faulty tilt function. You can power a 612 from a 412 power supply. As stated, the only real difference is the use of a TAU camera in place of a Photon.Best WishesFraser

author: Fraser
author_rank: Super Contributor
timestamp: July 17, 2017, 08:05:50 pm
content: I forgot to ask, are you aware that the software to configure and control the cameras is free and available from the Bosch web site ?Fraser

author: Fraser
author_rank: Super Contributor
timestamp: July 19, 2017, 07:44:03 pm
content: Oh dearFraser

author: Fraser
author_rank: Super Contributor
timestamp: July 22, 2017, 01:59:28 pm
content: DreanC,If you ever need a really nice condition (no corrosion or damage) 412, in original White colour scheme, let me know. I do not actually need it for anything. I also bought the riser mount for it to provide conduit side entry rather than axial feed. It is a really good condition camera and I thought. Boat owner might be interested in it due to its white colour. I was thinking of putting it on eBay but happy to sell via direct comms.I also have an 'as new' Ganz 'metal mickey' PTZ that is similar to the Bosch cameras but has the two cameras in a vertical pairing rather than horizontal. I really like its superb build quality. That might also be for sale as I have other cameras for the task for which it was intended.Best WishesFraser

author: Fraser
author_rank: Super Contributor
timestamp: July 22, 2017, 04:51:38 pm
content: I just checked and it owes me £525 including the riser mount.Make me an offer ?Fraser

author: Fraser
author_rank: Super Contributor
timestamp: July 22, 2017, 04:54:17 pm
content: I will give it some thought.Fraser

author: Fraser
author_rank: Super Contributor
timestamp: July 22, 2017, 05:13:52 pm
content: Ok, after a quick look at current selling prices for corroded junk ..... £700 and £1400 ! I think £750 is fair for my lovely condition white 412 camera and mount. Postage is extra. I will provide pictures of it to show condition.This camera came from my professional CCTV friend in Falmouth. I originally purchased it for £800. Then did a part exchange with it on a DRS PTZ thermal camera. I missed it so bought it back from him later ! I still have not used it though so it needs a good home. My friend regularly sells these 412's for £700 to £1100 depending upon condition. Mine is at the £1100 end of his normal pricing due to condition.There is still a decent profit in it if you decide to sell it on.Fraser

author: Fraser
author_rank: Super Contributor
timestamp: July 22, 2017, 06:41:46 pm
content: I would have to check what it owes me but likely the same as the White 412, possibly more. It is in superb condition. IIRC it is actually a professional DRS product rebranded by Ganz. It would not look out of place on a helicopter gunship !No worries if this is no good to you, we are talking serious money and not pocket change after all. The 412 cost around £15K new. They are normally superb cameras so I have been shocked to see the ones on eBay recently that have had water ingress. Very unusual. Mine is spotless inside, just like it left the factory. It was either a demo unit or was deplored in a protected environment.Fraser