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The full list of Nv parts.

Discussion in 'Night Vision Optics and Illumination' started by kenhawker, Apr 5, 2012.

  1. terry1001

    terry1001 Major Poster

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    I use RC LiPo packs for some purposes, depends on the space available and I do have the correct balance charger for them.
    This box http://www.ebay.co.uk/itm/111463745...49&var=410456392418&ssPageName=STRK:MEBIDX:IT will take a 5" monitor and has plenty of space for all the parts needed. Maplins do have them but my local shop doesn't stock much of a selection these days.
    Spotter lenses are plentiful but the choice can be confusing. C (and cs) mounts are a lens fitting and have a 1" thread, the lenses themselves tend to be of better quality than the 12mm board camera lenses but unfortunately the E700 is not easy to convert to this fitting. However spotter cameras don't need to be as sensitive as add on cameras because they don't have to cope with all the extra glass and coatings on a scope. My own preference is to use a camera fitted with a c mount, add a c mount to M42 adapter and then use lenses from old film slr cameras with a M42 thread. These lenses are very good quality, cheap to but and nearly all are designed to work with ir light.
    http://www.stockoptics.com/cctv-lenses/mounts-adapters-shims/cs-mount-lens-holder-662.html
    http://www.ebay.co.uk/itm/370554727946?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT
    http://www.ebay.co.uk/itm/Auto-Chin...618998?hash=item3d0927f676:g:TOMAAOSwLzdWSbzM
    for examples.
     
  2. spike589715

    spike589715 Busy Member

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    Hi Terry many thanks for your input
    I am thinking I will update my monitor - as the vertical mil dots are blurred the horizontal ones are clear ?? I think the res is not as advertised etc
    I have looked through the list and am not sure which monitor I should go for, some of the links are old now and for 3" / 4.3" etc
    do you have any suggestions on known good monitors which genuinely meet the advertised specifications?
    Many thanks for your thoughts

    Simon
     
  3. terry1001

    terry1001 Major Poster

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    If you want a guaranteed high resolution monitor then the best option is to buy from Sure24 as they test theirs to make sure that they comply. One of the ebay sellers, Heavenends, also states that his monitors are guaranteed to be high resolution - they seem to be fine but so far I've not actually counted the pixels on one although, if I can summon up the enthusiasm, I might do so. I'm not aware of any smaller monitors which give high resolution (for their size) other than buying the parts and assembling it yourself.
    The colour monitors have groups of 3 elements (red, green and blue) making up the individual pixels but some sellers count them as 3 pixels and that's how they get their 'high resolution' screens.
     
  4. spike589715

    spike589715 Busy Member

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  5. terry1001

    terry1001 Major Poster

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  6. bluevelvet

    bluevelvet Member

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    Hello,
    I'm building a night vision system for my Daystate Air Wolf. All is good, but need some advice with one issue: I'm using a $10 board camera bought on eBay here in the states and have lenses ranging from 3.6mm to 16mm and am having trouble finding the right lens that will focus both on the scopes reticle an object I'm looking at. I can focus on the reticle, and then object is blurry, or other way around. Closest lens I've found to work best is 6mm, but I'd prefer 8mm on up to get proper magnification. You tube videos show folks using 12 or 16mm lenses, but I cannot get these to work. I'm tried all sorts of positioning of camera to end of scope, but no luck. Sorry for the long post, but I'm getting frustrated with my investment. This is the camera Im using 290725262173. Any help would be appreciated!
    Thanks!
    Cris
     
  7. terry1001

    terry1001 Major Poster

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    I think the problem is probably your camera, you need to be very lucky to find a cheap camera that works well - some are ok but a lot are very poor. For a night vision add on for an air rifle you really need a scope which has adjustable parallax because the ir light used in the dark focusses at a different distance to white/day light.
    The process for setting up the add on is:
    set the reticle for normal use so that it's sharply focussed.
    set the camera so that the front of the camera lens is about 35-40mm behind the rear glass of the scope, to start with focus the camera so that objects about 6-8 ft away are in focus. You can move the camera back and forwards a little so that you get a decent image of the scope picture. If you use a 16mm lens then you will see nearly all of the scope image with just a little darkening at the corners. A 12mm lens will give a circular image in the centre of the screen and if you use a 25mm lens you will get a magnified image of the central part of the scope view.
    Once you have got a decent view of the scope image you should now focus the camera until the reticle is sharply focussed, lock it in place and leave it.
    Focus the target using the adjustable objective or side focus.
    In the USA you can get good prices for the KPC cameras which are as good as you can get at a sensible price, the E700 is the board camera and the EJ230 is the bullet camera version of it. Either will need the ir cut filter removing to give useful performance, most cameras have these in place to give a natural colour balance and clear focus but they are not required for night vision use..
     
  8. bluevelvet

    bluevelvet Member

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    terry1001,
    Thank you for the reply. Okay, I can live with the fact I made a poor choice with the board camera, so now I need to know which brand of E700 or EJ230 to buy as these are expensive and there are too many to choose from (dozens or more). Unfortunately, I've got about $50 invested in cameras and will have to find another use for them :eek:. My background is with Pentax legacy M42 glass that I have been using since 1972 when my father introduced me to the Pentax ES. Before I was shooting with a Leica 50mm camera and others. I'll look up KPC cameras if that is actually a brand name I can locate here in the states or if there is another brand to look at, I have plenty of lenses to choose from including a variable telephoto one I bought from China. Problem with buying from China is the 3 week wait for parts.

    Cris
     
  9. terry1001

    terry1001 Major Poster

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  10. bluevelvet

    bluevelvet Member

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    Camera on order


    Thank you for the camera part numbers, I have the kpc-ej230 with 12mm lens on order, will let you know how that works out. What TFT screen do you recommend? Is there a universal mount for attaching the camera to scope?

    Thanks,
    Cris
     
  11. terry1001

    terry1001 Major Poster

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    It's difficult to offer suggestions for US suppliers of parts and fittings. My favoured screen is a 5" car reversing monitor with 800x480 resolution but unfortunately a lot of the sellers claim this high resolution but actually supply an inferior screen - there will be plenty of offerings on ebay so it's wise to try and find one where the resolution is guaranteed and to check it once you have it to hand.
    How you fix a bullet camera will depend on what method you're going to use for a scope mount. The camera can be fitted using a bush inside a tube or even a scope mount, people have used all sorts of different methods and it helps if you have access to a lathe but it's not essential. Plumbing fittings, and some electrical ones,offer a range of tubes, bushes and other fittings which can be adapted. This youtibe channel https://www.youtube.com/user/RolaidsBench/videos is by an American guy who has tried various things and it may be helpful. The main thing is to get the camera fitted firmly and in line with the scope at the correct distance behind it.
    If you have a decent hardware store nearby it's worth browsing the plumbing and electrical sections to see what is available, the plastic (upvc) ones can be adapted for a push fit or they can be stuck in place with the solvent adhesive although this is permanent so you need to be sure before sticking it!
     
  12. Mr. FOG

    Mr. FOG Newbie

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    2 double Е700+ Т20



    [​IMG]
    [​IMG]
     
    Last edited: Dec 21, 2015
  13. kalmantihanyi

    kalmantihanyi Active Member

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    Great post ken..
     
  14. kenhawker

    kenhawker Honorary Member

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    This is abit out of date I bet.
     
  15. terry1001

    terry1001 Major Poster

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    Still makes a very good starting point.
     
  16. Bad Actor

    Bad Actor Active Member

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    It does but as a someone looking to do this it's frustrating having outdated links in a post as a sticky.
    Don't get me wrong, it's very helpful but dead links from a few years ago is rather frustrating.
    I get the jist of it but may be worth updating or unsticking it.
     
  17. ukzero1

    ukzero1 Posting Addict

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    It's not just the links that are outdated, the equipment also may be. Technology moves on and things get better and being as this thread was first started in 2012, I would think by now that all the parts needed will be far superior.
     
    Bad Actor likes this.
  18. Bad Actor

    Bad Actor Active Member

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    Exactly but I didn't want to come across as too critical but of course things have moved on.
    Valid information but shouldn't be stickied now unless updated.
     
  19. ukzero1

    ukzero1 Posting Addict

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    Bad Actor likes this.
  20. Dormy

    Dormy Engaging Member

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    Not as long a wait as you might think. I ordered one of those 6 days ago with an expectation of "deliver by" late July or early August. Got an e-mail today that it has already landed at Heathrow !
     
    Bad Actor and ukzero1 like this.

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