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    • Home
    • Birch Cases
    • Frosty!
    • Obsession Decal
    • "Original" version Specs
  • Home
  • Birch Cases
  • Frosty!
  • Obsession Decal
  • "Original" version Specs
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Hello from Milford, Massachusetts!

Click between all your filters!

No more messing with trying to screw those expensive filters onto your eye pieces in the dark.

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(Seen here is the Mark II)

I offer 3 types of FilterSlide Assemblies:

1) The "Original" FilterSlide

2) The Mark II

3) A Customized Assembly

*Each with Multiple Options*

The mark II

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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.

These are images of a Mark II INSTALLING ON a FEATHER TOUCH FOCUSER

Mark II Details:

  • Eliminates all in and out-travel issues
  • Installs in about one minute on all Feather Touch Focusers having threads on the nose of the focuser tube. (Pre-2008 you will need to check for the threads. Some did not have them.)
  • Works with most previous Astrocrumb Slides and Accessories
  • Made from very light weight, very rigid plastic

The "Original" version

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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.

THE OMEGA DEW TERMINATOR

"ODT" for short

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PERMANENTLY MOUNTED

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.)

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The Birch Cases

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.

Click here for birch case details and pricing

ADDITIONAL HOLES!

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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.

pricing!

* 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...

Email Me!

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.

Astrocrumb FilterSlidse and Accessories

roger@astrocrumb.com

Customized Assemblies

UC Dobs

Longer FilterSlides

Longer FilterSlides

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Bracketed for a particularly tricky UC

Longer FilterSlides

Longer FilterSlides

Longer FilterSlides

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As seen above, I can make custom FilterSlides with more holes!

Shimmed to reduce intrusion into the light path.

Shimmed to reduce intrusion into the light path.

Shimmed to reduce intrusion into the light path.

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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.

Me doing my thing...

Shimmed to reduce intrusion into the light path.

Shimmed to reduce intrusion into the light path.

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Yup, working hard!

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PayPal only after you and I email details about your order!

$0.00
Pay with PayPal or a debit/credit card

If you would prefer to use a personal check, a postal money order, or a bank check, then please, contact me for the mailing address.

Reviews!

Ed Ting

A Great Review by Doug F.

FROST PREVENTION

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Read Ed Ting's review from way back in the day...

FROST PREVENTION

A Great Review by Doug F.

FROST PREVENTION

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The title of this picture was " Look what's NOT covered in frost!!"

A Great Review by Doug F.

A Great Review by Doug F.

A Great Review by Doug F.

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Click here

A Few More Reviews!

A Very Thorough Cloudy Nights Review

A Great Review by Doug F.

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See Them Here

A Very Thorough Cloudy Nights Review

A Very Thorough Cloudy Nights Review

A Very Thorough Cloudy Nights Review

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Click Here

about astrocrumb

It's just me...

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!


-Roger Greenwood

Milford, Massachusetts

HELPFUL/RELIABLE LINKS BELOW!!

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