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  • Kowa High Resolution Video Camera Adapter with Integrated Eyepiece for Spotting Scope Models TSN-880 or TSN-770
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Kowa High Resolution Video Camera Adapter with Integrated Eyepiece for Spotting Scope Models TSN-880 or TSN-770


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We don't know when or if this item will be back in stock.
  • Enormous ~58mm-wide clear aperture assures no vignetting, even when using an SLR attached with a fast 50mm f/1.4 standard lens
  • 14x Magnification with 3.0° true field (42° apparent field of view)
  • Optical magnification equivalent to ~605mm lens (when used with a 24 x 36mm SLR + 50mm lens attached)
  • Can be used with zoom and fixed telephoto SLR lenses for higher magnification and focal length
  • Extremely long 60mm eye relief

Currently unavailable. We don't know when or if this item will be back in stock.

Product Description

The Kowa TSN-VA3 is a cutting edge improvement in the world of digiscoping products, something for the rest of the industry to envy and quickly emulate.  It practically makes shooting with an SLR alone with telephoto lens moot. The TSN-VA3 is a big chunk of glass and metal that attaches to your TSN-88* or TSN-77* series spotting scope just like an eyepiece.  You could actually observe with it right then, as a 14x lens, but it is intended that you attach a Kowa TSN-AR* adapter ring to the rear which matches the filter threads on whatever you're putting behind the TSN-VA3. And there lies the beauty; because the collimated light optical field behind the TSN-VA3 is so wide and with such abundant eye relief, you're not limited to point and shoots or video cameras to put in the optical path-you can use an SLR with lens! The TSN-VA3 will allow you to use your SLR camera with its attached lens, and most would choose either a standard fast 50mm lens or a short telephoto such as an 85mm f/1.8 or 100mm f/2.0, etc.  Your SLR lens doesn't do the focusing, so if you're buying a lens just for this task don't consider the focusing speed as it relates to digiscoping; all that matters is the optical quality, maximum aperture, and peripheral brightness at maximum aperture.  With a maximum clear light-gathering aperture of 88mm and the potential to capture that light at f/2.0 or f/1.4, the TSN-VA3 with TSN-88* scopes presents a serious competitor to a 600mm f/4, 500mm f/4, or 400mm f/2.8 lens so favored today in professional birding imaging.

Product Details

  • Shipping Weight: 1.4 pounds
  • Shipping: Currently, item can be shipped only within the U.S.
  • ASIN: B00470NDBW
  • Item model number: TSN-VA3
  • Average Customer Review: 4.0 out of 5 stars  See all reviews (1 customer review)
  • Amazon Best Sellers Rank: #2,163,785 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
  • Product Warranty: For warranty information about this product, please click here

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Most Helpful Customer Reviews

1 of 1 people found the following review helpful By Norman Rogers on October 12, 2013
Verified Purchase
Be aware that works best with a 50mm lens. With a shorter FL lens the image is a circle in the center of the frame - nothing to be gained. This screws into the lens like a filter. An adapter is needed to match the lens thread to the device thread. These are available. Obviously the camera should be an SLR or have live view so you can focus. An SLR with a flapping mirror is likely to move the telescope with the vibration, so best to run in mirror up mode if available. Resolution was very good and mainly limited by air turbulence in most cases when used with a premium Kowa spotting scope. Because the camera adds weight to the back you need a mount with a sliding plate to adjust the center of gravity.
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