No more messing with trying to screw those expensive filters onto your eye pieces in the dark.
1) The "Original" FilterSlide
2) The Mark II
3) A Customized Assembly
*Each with Multiple Options*
This design is intended to be used in conjunction with the Feather Touch Focuser made by Starlight Instruments. They make a custom adapter ring specifically for my FilterSlide assembly. As you can see in the pictures below, the adapter ring threads into the nose of the focusing tube.
My "Original" version is used on any Dobsonian scope with a focuser other than a Feather Touch. This version is designed so the customer may mount the rails to the UTA via 4 wood screws. Instructions are included.
Specifically designed for the Astrocrumb FilterSlide.
Custom made for each slide, no matter what length or
number of extra holes.
To be used in conjunction with standard dew controllers.
(Kendrick, Thousand Oaks, Astro-Cube, etc.)
It is always a good idea to protect your investment in filters! I have designed this case for convenient use in the dark and to protect your investment from abuse. They are made using Birch wood with Ipswich pine stain and a satin finish varnish. I also offer custom cases that will hold 2 or more FilterSlides. It is the same design using two or more conveniently stacked together.
The new FilterSlide and accessories can be custom made with additional filter positions. You can order up to as many as 8 filter holes in one slide! But 8 might make it a bit extreme. Your call on how many you would like. Cases and ODT's can be made to fit custom length.
* Entire Mark II assembly with 3 aluminum threads - $135.00
(3 threaded holes plus 1 open hole for unfiltered viewing)
* Additional filter slide - $65.00
* Additional rail set with adapter ring - $75.00
* Omega Dew Terminator(ODT) - $79.00
* Extension handle so you don't have to reach around on really big dobs - $15.00
For my "ORIGINAL" version the price is $89.00
**For each additional filter hole add $25.00 per hole per slide
**For each accessory to accommodate the additional holes, add $25.00 per hole per accessory including birch cases
Example: for an extra slide($65) +1 more hole($25) making it 5 holes
(4 threaded)= $90.00
And for an ODT to accommodate the 5 hole slide(4 threaded) is $79 + $25 = $104.00
Darn, I hope that makes sense...
As every order requires me to confirm compatibility, please email me with all inquiries! Initially, I will need to know the brand and aperture of your scope and the brand of focuser.
Bracketed for a particularly tricky UC
As seen above, I can make custom FilterSlides with more holes!
While there may not be a significant effect on actual observing, any intrusion into the light path can be minimized with extra attention when mounting the FilterSlide.
Yup, working hard!
If you would prefer to use a personal check, a postal money order, or a bank check, then please contact me for my mailing address.
It was driving me crazy dealing with screwing in those 2" filters every time I wanted to try a different view. So for that reason(and I needed a way to finance a full set of Naglers...), I came up with the Astrocrumb FilterSlide.
Basically, I produce the Astrocrumb FilterSlide in my workshop, from scratch. There are 2 parts I have help with. The adapter ring for the Mark II that threads onto the Feather Touch Focuser, made exclusively for me by Starlight Instruments. And the threaded aluminum rings produces by DVF corporation.
Producing each FilterSlide is pretty much custom and on demand as there are just too many scopes out there with different idiosyncrasies. So my turnaround times will vary depending my workload.
Thanks for your interest in my FilterSlide!