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Thread: Advice

  1. #1

    Advice

    Like some advice please
    S&B 8x56 klassic
    Or ziess terra 3-12 50 which is best please
    For stalking and lamping

  2. #2
    I must admit that I have never used the Zeiss terra but I can tell you that it would be very hard to beat a schmidt and Bender 8x56 classic for quality of glass and value. I would pick the 8x56.

  3. #3
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    I've had neither, but, the Zeiss has more flexibility and if HILL stalking you can put it at 6x and if WOODLAND stalking 3x would be ideal. I've handled an 8x56 but personally I'm not into "big" 'scopes and use two Zeiss 3-9x36 and a Zeiss 1.5-4.5x24.

    Before that I used Zeiss 4x32 and 6x32 on my rifles. And a 6x42 Leupold on a .22LR for magpies and rabbits.

    To my mind it's no contest save: Cost v the S & B; weight and length v the S & B; type of reticule.

    And what cost premium you put on that flexibily. For low light, in theory 7x50 is equal to 8x56, but if you crank down a "power" 6x50 will be better...depends on if you need 8x or can make do with 7x or even 6x?

    Twenty years plus ago we considered 6x42, fixed power, as the "ideal", "ultimate", foxing 'scope! No doubt the same "resident cretin" will be along shortly wanting to ask how many foxes I've shot this year.
    Last edited by enfieldspares; 29-04-2016 at 20:31.

  4. #4
    Why will 6x50 be better than 7x50 or 8x56 enfield?

  5. #5
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    Lesser magnification, if the front end remains same diameter, gives more light gathering and wider field of view and greater depth of things being in focus.

    If you divide the "x" figure into the lense diameter figure the nearer you can equal or exceed "7" the better the light gathering. Divide 56 by 8 = 7.

    But if you must have 8x then an 8x56 is better than an 8x50. Or 7x or 6x. I sold my Leica 8x42 as, for low light, my Leica 7x42 performed better and in daylight I saw no practical advantage, but some disadvantage, in the 8x42 set. So I sold them.

    Continental boar stand glass always seems to have this "7" factor...like Optolyth's 9x63 binoculars...or the now seldom seen 7x50 size.
    Last edited by enfieldspares; 29-04-2016 at 20:47.

  6. #6
    Quote Originally Posted by enfieldspares View Post
    Lesser magnification, if the front end remains same diameter, gives more light gathering and
    Sorry but that's not so. The average human eye has an exit pupil of 7mm. Therefore, any figure greater than 7 is wasted as far as light gathering is concerned. That is why we have 8x56 scopes. ie 56/8=7mm or back in the day 6x42. a 6x50 will obviously give you a greater field of view but not greater light gathering.

  7. #7
    .... more light gathering and........
    none of it makes any difference unless you have eyes the size of a cow (they have big eyes BTW!)

    exit pupil diameter is the key indicator on "brightness"

    56 / 8 = 7mm
    50 / 7 = 7,14mm
    6 / 44 = 7.33mm

    average size of adult pupil? 7-8mm in total darkness
    In low light? - 4-6mm

    6x50 = 8.3mm in theory

    anything bigger than your pupil is wasted as you can't physically get any more coverage

    also the effects of the internal mechanism of a variable will never match a fixed mag on the same power

  8. #8
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    BG and BEWSHER thank you both for expressing in a more cogent manner what I was trying to say re light gathering and depth of field and this human eye 7-8 capability.

    What you both said. I agree. Save that what I was also trying to advise the OP that for depth of field and focus 6x50, or 7x50 on his variable 3-12x50 will be better than 8x56 on his S & B.

    For binoculars I now have just Leica Trinovid BA 7x42 and Optolyth Royal 8x56. I get a wider field of vision, and greater depth of focus with the Leica 7x than the Optolyth 8x.
    Last edited by enfieldspares; 29-04-2016 at 22:11.

  9. #9
    Quote Originally Posted by bewsher500 View Post
    anything bigger than your pupil is wasted as you can't physically get any more coverage
    It is also the case that more magnification, assuming the same sized exit etc, give you more detail in the object you are looking at.

    It is easy to demonstrate this - magnification is, in effect, the same as getting closer to something so at dusk walk towards something and watch how it becomes clearer as you get closer. The size of your eyes haven't changed, nor has their light gathering capability, but the amount of light reaching them from the object of interest has as it fills more of the field of view plus you can discern more detail.

    So, providing you can keep that (approx) 7mm exit pupil then magnification can help in low light situations.

    I use an 8X56 S&B and shoot sika, which tend to move only in the last few minutes of light, in dark commercial forestry plantations. I've shot deer from approx 20 yards to around 250 yards and have yet to find the scope a limiting factor. If you gave me a top notch, big money, variable I'd sell it, buy a fixed mag 8X56 (or similar as some like the 6X or 7X better) and spend the left over cash on stalking. Spending the money on stalking greatly increases the chances of shooting more deer, spending it on gadgets greatly increases the profits of some gun shop :-)
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  10. #10
    I would avoid the terra range.....not ziess's finest hour in my opinion. They are budget priced for a reason. Made in China I believe!

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