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ZDP-189

Member Since 14 Mar 2010
Offline Last Active Feb 05 2012 07:13 AM
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Topics I've Started

Target shooting camera?

04 February 2012 - 01:13 AM

I stumbled across this on the web:

http://web.orange.co..._shooting_range

It's a fairground attraction that takes a photo of the shooter every time he/she hits the target. This wouldn't be difficult to implement on a slingshot target. All you need is a microswitch connected with an audio jack to a camera wired trigger. Obviously, the camera would need to be protected behind a clear screen. it would take 10 minutes to make and 1 minute to set up on the day.

This could be done at tourneys and the photos combined into a roll of honour photo album.

What do you think? Has it been done?

Dog operated slingshot

05 January 2012 - 10:12 AM

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From thechive.

Chuck Norris vs Bruce Lee

04 December 2011 - 01:35 AM

In a real fight, at the height of their powers, Bruce would have punched Chuck's clock. Discuss. Using images only.

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Target shooting glasses

02 December 2011 - 07:31 AM

I have made some target shooting adjustable iris safety glasses.

Such devices are sometimes used for target shooting disciplines that require iron sights because they offer several advantages:
  • Superior depth of field
    • Both the fork tip and your target will be in sharp focus at the same time
    • Your eye will not have to find focus
    • Superior focus with or without spectacles
  • Lower lighting levels
    • Less eye strain in bright light
    • Your iris sphincter and dilator muscles have less work to do
    • Your ciliary muscles around the lens have less work to do
  • No cross-dominance issues
    • Only one eye can see
    • If like me, your left eye is ordinarily dominant and draw the pouch under your right eye, it will avoid parallax
    • No need to squint
These glasses look all gucci, but they cost me all of $10 in parts and the prohect was done in 20 minutes. You could make a passable non-adjustable in five minutes from a $3 pair of safety specs, a small drill and some black spray paint. A better, though still non-adjustable, version would use a bit of soft drink can with a pin-hole drilled in it to make a better, thinner, aperture plate.

They are functionally similar to Knobloch shooting glasses with an adjustable iris and left eye blinder, except for the additional benefits of:
  • Eye protection
  • Greater range of iris adjustment
  • More complete black out
  • All matt-black internal surfaces to cut reflection from the face
Drawbacks:
  • Restricted vision
  • Loss of binocular vision and depth perception
  • Reduced light transmission
  • A bit Borg-tastic; other shooters will likely take the mick
But don't knock it till you've tried it. It makes a huge difference in vision.


Fully Stopped Down to 0.7mm for Daylight Shooting

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Partly Stopped Down to 2.5mm for Indoor Shooting

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Fully Open

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Specifications:
  • 2mm polycarbonate safety glasses
  • 10 blade aperture diaphragm, round aperture at all settings
  • Continuously variable from 0.7mm to 11mm
  • Eye relief approx 20mm
  • AoV at 11mm = 300 mils (17 degrees)
  • AoV at 11mm = 180 mils (10 degrees)

Beating the cold with polyurethane

18 November 2011 - 08:48 PM

Polyurethane isn't quite as resilient as natural rubber, but it is much less affected by cold. Has anyone tried shooting in cold weather using polyurethane? I'm a bit short on cold weather, living deep in the tropics.

Hint: Some non-latex condoms are made of PU.


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