Advantages or disadvantage of a Sunshade?

Discussion in 'Long Range Scopes and Other Optics' started by WEATHERBY460, Apr 27, 2012.

  1. WEATHERBY460

    WEATHERBY460 Well-Known Member

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    Why should i use or not use a sunshade,....i cant tell much difference with or without it...thanks
     
  2. Outlaw6.0

    Outlaw6.0 Well-Known Member

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    What length of shade? Have you played at various angles to the sun? I mostly use 4" shades as I find they are better suited to my needs. I usually find them most useful when the sun is forward of the shooter's position. If the sunlight can reach your objective lens from any angle, the shade is a very useful companion. The Caveat being, it makes it harder to fit your rifle in scabbards (horse or ATV). Sometimes it won't fit at all...

    hope that helps,
     

  3. Buffalobob

    Buffalobob Writers Guild

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    As you get older your eyes become more sensitive to glare. Think of glare as stray light which did not originate from the target. Even when the sun is not directly on the scope you will have stray light. Minimizing the stray light helps your eyes take advantage of the light that comes from the target.

    You will notice that sometimes people talk about how "bright" their scope is. Often this is just a statement that there is a lot of white light which represents stray light and is caused by poor quality coatings and glass or the sun hitting the objective lenses.

    Think of a sun shade as a bill cap for your scope. If you are wearing a hat to keep the sun out of your eyes then your scope should have its sunshade on too.
     
  4. WEATHERBY460

    WEATHERBY460 Well-Known Member

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    Do you loose field of view or light gathering capabilities?
     
  5. Buffalobob

    Buffalobob Writers Guild

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    No, you don't lose anything.
     
  6. bruce_ventura

    bruce_ventura Well-Known Member

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    I agree with Buffalobob. I've spent a lot of time assessing glare performance of scopes at the last few SHOT Shows. The ceiling lighting in the big halls is nearly ideal for this. I've noticed that glare performance tends to degrade as the magnification increases, it also tends to get worse at all magnifications as the mag range increases. That is, a 3-10X scope will have less glare at 10X than a 6.5-20X scope at 10X.

    Extra engineering and cost to reduce glare is one of the things you pay for with very good optical scopes like Zeiss, Swarovski, etc. In the mid-price range, not all scopes are created equal, either.

    While a long sunshade can limit field of view for a low mag scope, it won't for a high mag scope, which is where it's needed most. IMHO, If you can use a sunshade, then do so.
     
  7. Longbullet

    Longbullet Active Member

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    A shunshade is a big help to keep the lens dry when hunting in the rain. Here in Oregon that seems happen quite a bit.
     
  8. gamehawker

    gamehawker Well-Known Member

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    That's a good use for a sunshade I have not thought of.
     
  9. bamadawg2009

    bamadawg2009 Well-Known Member

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    You wont notice much of a difference during the middle of the day with a sunshade, but when the light starts to fade is when a sunshade shines. I can easilly see 10-15 min longer after light fades with my sunshade on my scope than without it. I put a shade on everything I have with a 40mm bell or larger.

    With my Loopy VX3 4.5-14x50 with a 1" tube and a shade I can see things well after my buddy with his same power VX-L has already stuck his in the case. I dont know if NF does it but Leupold is actually including sunshades with most of there VX3 upper end scopes now.