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What size scopes are people using....

Discussion in 'Night Vision Optics and Illumination' started by weebster, Jun 28, 2012.

  1. weebster

    weebster Busy Member

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    Location:
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    Just out of interest,what size objective lens scope's are being used for home nv.....is there any benefit stepping up from a 40-42mm lens to 50-56mm lens to gain more light gathering capability ? :)
     
  2. gotta go tactical

    gotta go tactical Posting Addict

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    I would of thought so to be honest but you have to consider weight also...
     
  3. doodsy

    doodsy Donator

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    Location:
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    hi

    i have a ASi Deluxe 4 x 32 made about 1980 nice retro scope clear optics mounted on a webley vulcan


    TASCO 3 - 9 x 56 with IR decent enough scope but it maked my Diana 52 real heavy


    But my favourite is my Fontaine 3 - 9 x 40 parallax adj, crystal clear great sights bought it in 89 ( AND I CANT FIND THE BXXXXXD PUT IT AWAY FOR SAFE KEEPING, IDIOT)
     
  4. Yogi GunKanobee

    Yogi GunKanobee Engaging Member

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    I have two MTC Viper Connects. I love them, they are 3-12*32 with next to no eye relief, huge field of view, loverly fine reticule and just damn nice. :)
     
  5. Flykilla

    Flykilla Engaging Member

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    50mm for me.. Works fine with the Watec, but have not tried the NV with anything else, so cant really compare..
     
  6. johnt

    johnt Engaging Member

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    3x9 42 niko gold crown with ao on both my guns and i love em
     
  7. walken

    walken Well-Known Member

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    use 50mm wtc simmons scopes 6-20 a/o,maybe more todo with the mag factor! to give the best field of view,does vary from scope to scope with picture quality,though...
     
  8. toytown

    toytown Honorary Member

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    i use a 3-9x40 mildot for day shooting and a 3-9x50 for night on the lamp coz it lets more light inn
     
  9. nobbybonez

    nobbybonez Busy Member

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    using a mamba lite, 44mm. have also used a nit-eye at 50mm, no discernable difference in light gathering, but the side pa on the mamba makes all the difference...
     
  10. Humpers

    Humpers Engaging Member

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    I'm using a 3-9 x 50 and it works very well out to 100yds. If you're concerned about light gathering then in my experience go for the best you can afford for each part of the system, as light gathering is affected at all stages. E.g.

    Illuminator: Laser/LEDs/lamp with filter: 808nm gives more illumination for typical cameras than 850nm or 940nm. As you go up the nm range it is less visible to the target animal but you need a stronger light to give the same level of brightness on the camera. I use LEDs for short range and a laser for longer range.

    Camera: Go for larger ccd chip, lower lux spec, higher signal:noise ratio, etc.

    Lens: Go for one with lower f stop number, e.g. 1.4 or 1.6 rather than f2. A wider angle lens, e.g. 9mm focal length, will also inevitably gather more light than a longer focal length, e.g. 30mm, but obviously gives less magnification of the image.

    Scope: Yep, larger objective lens is better. I guess an expensive scope with higher quality lenses will transmit more light than a cheap one (but I can't afford an expensive one so don't have direct experience!). With parallax adjustment to ensure the image is focussed.

    Battery: A decent battery well charged can only help.

    These are just my quick thoughts and there are many on this forum that have much more experience than me, so no doubt others will add to the list or correct me. All of the points above are discussed in greater detail in the various threads.
     
  11. kenhawker

    kenhawker Honorary Member

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    Im using a 6-24x50AO/IR Tasco with a Everfocus CCD 1/3" B/W Camera Model EA 100/C fitted with a 25mm cs lens.
     
  12. rash666

    rash666 Newbie

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    I used a Sabre 4 - 12x 42mm objective scope with a Cobra Merlin 1x gen1+ monocular and it was a good image on lower magnification setting of scope.

    Found I couldn't see anything when by mistake I had it turned up to full magnification on 12x.

    You need a scope with adjustable objective or side focus to use this setup. :)
     
  13. bradleymarky

    bradleymarky Keyboard Hero

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    Just got a hawke panorama 4-12x50 ev ir ao map6, had a couple of plays with it and i`m happy so far...
     
  14. weebster

    weebster Busy Member

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    Location:
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    At the moment i'm using a hawke tac 30 10x42,but the quality of image goes down the moment I put the camera on it,I have to opt for a smaller image/circle to get best results which also gives a better fov,then zoom into a target once spotted.
    I have'nt tried the ir torch/new lens yet which might give a better pic at higher zoom,will also try a 25mm 1/2 format lens as the one I have is for 1/3 format.
    Might be a case of bigger objective to gather/make use of the ir light available.
     
  15. hun73r666

    hun73r666 Keyboard Hero

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    I was using a MTC Viper 6-24x56mm but have now swapped for a Bushnell 6500 2.5-16x50mm.

    If you are comparing two scopes made using the same glass then you will get more light gathered from the larger objective. But glass quality plays a large part in light transmission.

    My Viper was very good at letting light in. The 56mm lens and quality of the glass in these scopes is a good combination. However, as another poster said you do have weight to think about.

    The bushnell has fantastic glass and even though its objective is 5mm smaller than the MTC was, it lets as much if not more light in.

    I was also finding that at close range the minimum 6x mag on the viper was way too much. The 2.5x mag on the bushnell is a real winner for close range ratting and also lets in a lot of light.
     
  16. nobbybonez

    nobbybonez Busy Member

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    low mag very handy for spotting at distance...
     
  17. jmj

    jmj Well-Known Member

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    hiya guys, i have a Hawke 4 x12x50 IR EV, stupid question i know BUT you should "never" turn on the IR even on the low setting ?
    as i suspect that as the + hair is "super" thin i wont be able to see it easily...... with NV. home brew OR worse a NV ADD on scope...

    Kinda thinking that i may need to change the scope for something with good + hairs ?

    What do you all think ?
     
  18. Ronnieman

    Ronnieman Engaging Member

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    Location:
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    Im using a Hawke sidewinder 3-12 x 50
    and an MTC Viper 10 x 44 (HFT)
     
  19. hun73r666

    hun73r666 Keyboard Hero

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    Not sure what you mean mate. I have used my old Viper with the illuminated reticle on and my night vision setup. No problems


     

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