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Mary B
Vendor - Echo Astronomy and Electronics
Reged: 05/21/10
Loc: Minnesota
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New product! Duncam Collimation Masks
#5545981 - 11/29/12 06:30 PM
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Custom cut Duncan collimation masks are now available for SCT users. I need the OD of your optical tube, the OD of the central obstruction to cut them. If you want to fit inside of a dew shield I can work that out but it may require a template to be trial fit and returned.
As always I have custom cut Bahtinov masks available. I will need measurements of the optical tube for this also and how you want to fit, inside or outside a dew shield.
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zerro1
Postmaster
Reged: 08/02/09
Loc: Smokey Point , 48.12°N 122.25°...
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Re: New product! Duncam Collimation Masks
[Re: Mary B]
#5547075 - 11/30/12 12:08 PM
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would these work for an AT6RC also?
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Mary B
Vendor - Echo Astronomy and Electronics
Reged: 05/21/10
Loc: Minnesota
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Re: New product! Duncam Collimation Masks
[Re: zerro1]
#5547738 - 11/30/12 07:27 PM
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In the process of testing them for RC use. I was out the other night and it looks like it might work but by watching the diffraction pattern differently. I didn't see good solid center bars but the outer bar showed double rings and I noticed on my scope the rings were uneven to one side. I know my RC is off a bit so it makes sense.
I have 2 people who will be testing for me in warmer weather. This time of year in MN clouds outnumber clear and clear means deep cold making it hard to work outside.
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Mary B
Vendor - Echo Astronomy and Electronics
Reged: 05/21/10
Loc: Minnesota
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Re: New product! Duncam Collimation Masks
[Re: Mary B]
#5556390 - 12/05/12 08:39 PM
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