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    5.4mm GoPro lens - dont get ripped off
    #1
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    There are several online vendors selling "5.4mm GoPro lens" (which are flat lenses removing the fish-eye look from your GoPro) and they are selling them for $375 or in that ballpark range.

    First and foremost, these lenses (and the others of various focal lengths) aren't made for the GoPro. They are actually manufactured and advertised by the manufacturer as lenses for small security type CCD cameras. They do however fit nicely into the GoPro 3+ Black and Silver camera because the lens mount threading and size happen to be the same as is used in the CCD cameras they are meant for. These lenses do produce some nice, non fish-eye images when used with GoPro cameras. But if you are using the 5.4mm or higher focal length replacement lens on your GoPro and are flying it with a multicopter, make sure you have well balanced props, engines and so forth because this lens will magnify any jello effect on your footage from vibrations of the multicopter.

    Secondly, if you do decide to purchase one, you dont have to pay $375 or any such nonsense for this lens. All these companies are getting them from china for around $100 and if you look around, you can find them from one US vendor for around $155 or so. A vendor making $55 profit per lens for the trouble of ordering them in bulk from china is definitely a fair price. A vendor making $275 or more profit on the same lens is a total rip off. There is nothing wrong with making a profit, but one of the most well known companies that are selling these for $375 is trying to strong arm or threaten anyone else that is trying to sell these cheaper because he doesn't want to lose his easy money train (or perhaps be found out how much he has ripped people off for) and that reason alone prompted this post. And don't let that company tell you these are special made for them cause they aren't. In fact, here is the 3rd link I found on page 1 just Googleing "5.4mm ccd lens" where you can see a couple Chinese companies advertising the exact same lens for CCD cameras: http://www.alibaba.com/trade/search?fsb=y&IndexArea=product_en&CatId=&SearchTex t=1%2F2.3+inch+F2.5+M12+10MP+CCTV+lens+5.4mm

    Finally, if you do decide to get one of these somewhere that doesn't charge $375 for them, be warned that there are 2 versions of the 5.4mm lens and getting the correct lens DOES matter.

    1)The "IR" version is meant for putting on CCDs filming at night where there is a infrared light shining in the area - this is the WRONG lens and you don't want it for daytime shooting. If you purchase this lens by mistake, you will get footage that is bleached pink like this:
    pink lens image.jpg

    2)The "IR CUT" version is the CORRECT version that you want for putting on a GoPro to film in the daytime.

    See the sample photo below so you can tell the difference between them:

    5.4mmGoProLens.jpg

    Good luck!
    Attached Images Attached Images
    Current Camera: Looking...
    Previous Cameras: HMC150, 5DMarkII, 5D Mark III, GH2, AC-90, GH3, GH4+YAGH, C100 Mark II


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    thanks for the info.


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    #3
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    This lens, which you must install and focus yourself, is getting some good reviews:

    http://www.ostrc.com/collections/gopro-accessories
    David S.



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    Quote Originally Posted by David Saraceno View Post
    This lens, which you must install and focus yourself, is getting some good reviews:

    http://www.ostrc.com/collections/gopro-accessories
    have you try this one yourself yet?


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    Quote Originally Posted by David Saraceno View Post
    This lens, which you must install and focus yourself, is getting some good reviews:

    http://www.ostrc.com/collections/gopro-accessories

    This is the vendor I was talking about that sells them for $155. Its the same lens being sold for $375+ by other vendors.

    I did in fact order one from him, seems a good guy. He has a batch coming in next week.
    Current Camera: Looking...
    Previous Cameras: HMC150, 5DMarkII, 5D Mark III, GH2, AC-90, GH3, GH4+YAGH, C100 Mark II


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    #6
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    No.

    My friend Mark has a RageCams mod, which runs about $400.00, and there is a big thread at RCGroups about these 5.4mm mods. This one has been mentioned a number of times, and people are providing good reviews.

    I have a problem with the install. Taking a wrench and heating gun to a $400 cam is a little daunting for me.
    David S.



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    Quote Originally Posted by David Saraceno View Post
    No.

    My friend Mark has a RageCams mod, which runs about $400.00, and there is a big thread at RCGroups about these 5.4mm mods. This one has been mentioned a number of times, and people are providing good reviews.

    I have a problem with the install. Taking a wrench and heating gun to a $400 cam is a little daunting for me.
    You dont need a heat gun, I just used a pair of plyers. There was some crunching sounds and the far edge of my original gopro lens is nasty looking, but is cosmetic and has no negative affect on the actual image coming from the lens. Once you pull the original out, putting this 5.4mm one in is a breeze. in fact you only screw it in 2 or 3 turns (not all the way) to get proper focus.
    Current Camera: Looking...
    Previous Cameras: HMC150, 5DMarkII, 5D Mark III, GH2, AC-90, GH3, GH4+YAGH, C100 Mark II


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    I am going to verify this, but I believe it is compatible just with the 3+, not the 3.
    David S.



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    Quote Originally Posted by David Saraceno View Post
    I am going to verify this, but I believe it is compatible just with the 3+, not the 3.
    yup. That is what i'm a bit not comfortable to play with. I have 4 gopro 3 but only 1 3+. Can't mess up the only one i have. Do you by any chance know where to find the step by step to install this lens?


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    I'm glad this was posted, the M12 situation has been a rip off for a long time now, there's making a profit and then there's taking the p##s.

    I speak as someone with 4 GoPros all but one I've stripped, I've got a Ribcage on one and have been trying for what must be a year different M12 lenses, I bought a couple from RageCams both costing me serious money to find they were too poor quality to be used, they flared so badly and light source at all get in or near the lens would make the footage all but unusable. I did tell RageCams the lens was no good, but almost a year on they still sell the lenses they know have problems. I did ask them why recently on Twitter but didn't get a straight answer.

    You can see the test I'd done on one of their lenses here:



    One word of warning if you see examples of M12 lenses on Vimeo, always look for light sources and look out for tell tales cuts when say a pan is cut just before the sun comes into shot for example.


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