Jump to content
Welcome to Backyard Astronomy Space - please register to gain access to all of our features. Click here for more details. ×
SmallWorldsForum Microscopy and macro photography - a companion forum to BYA ×

3D printed dew shields for Apollo 22x85 observational binoculars


geoflewis

Recommended Posts

Last year I purchased a pair of 22x85 observational binoculars to ride on my Orion Monster Parallelogram Mount. The combination is superb for all sky observation right through the zenith, but during unfavourable conditions the objectives can quickly mist over due to dew formation. The binoculars don't have integrated dew shields and despite looking around on-line, I haven't been able to find an inexpensive solution. Hence I asked a few of my astro 3D printing friends if a solution could be achieved that way. @Silent Running (thanks John) came to the rescue, designing a pair of long, slightly tapered dew shields, sending me a test print to check that the internal diameter would easily fit over the objectives, before printing the final items, which arrived in the post today. Here are a few images of what they look like..

[attachment=2515:name] [attachment=2516:name] [attachment=2517:name] [attachment=2518:name]

The internal diameter was deliberaly slightly oversized to all me to fit a couple of patches of sticky-backed felt, which holds them perfectly in position whilst allowing them to be easlier slid on/off the binoculars.

[attachment=2519:name]

I now can't wait to try them out under a dark, clear sky to see how well they protect the objective lenses from dew formation

  • Like 1
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Welcome to Backyard Astronomy Space - please register to gain access to all of our features

    Once registered you will be able to contribute to this site by submitting your own content or replying to existing content. You will also be able to customise your profile, receive reputation points for submitting content, whilst also communicating with other members via your own private personal messaging inbox. 

     

    This message will be removed once you have signed in.

  • Tell a friend

    Love The Backyard Astronomy Space? Tell a friend!
  • Topics

×
×
  • Create New...