Checking out a new potential low cost D-ERF. The idea is to get the cost for a 6" down to a more affordable level.
So far the tests have been good and no signs of gradients, distortion or interference.
Each cell will be custom fit to the scopes which will be included in the pricing.
Aug 11 2022 - Testing a D-ERF
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Aug 11 2022 - Testing a D-ERF
Last edited by Simon2940 on Fri Aug 12, 2022 4:23 pm, edited 1 time in total.
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Re: Aug 11 2022 - Testing a D-ERF
Good results Simon. Is this the Ali Express DERF?
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Re: Aug 11 2022 - Testing a D-ERF
Hi Simon,
What is this DERF and who manufactures it?
How much does this cost, and can I get one D-ERF to fit 60 mm to 120mm refractors ? ( to avoid buying 4 expensive D-ERF) costings hundreds or thousands of dollars (US).
Thanks
Magnus
What is this DERF and who manufactures it?
How much does this cost, and can I get one D-ERF to fit 60 mm to 120mm refractors ? ( to avoid buying 4 expensive D-ERF) costings hundreds or thousands of dollars (US).
Thanks
Magnus
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Re: Aug 11 2022 - Testing a D-ERF
The DERF will be sold by a company called Astro Hutech based in Los Angeles. Each cell will be custom made to fit your specific scope/dew shield.
The price point we are aiming for is $800 for a 6" including the DERF and holder. Smaller ones being cheaper.
As for sizes, most likely they will be 6 5 and 4 inches, whatever aperture size you want up to 6"
Im pretty sure that shipping will be world wide, you'll just have to deal with customs
The price point we are aiming for is $800 for a 6" including the DERF and holder. Smaller ones being cheaper.
As for sizes, most likely they will be 6 5 and 4 inches, whatever aperture size you want up to 6"
Im pretty sure that shipping will be world wide, you'll just have to deal with customs
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Re: Aug 11 2022 - Testing a D-ERF
Very promising results!
Please keep us updated on the availability of this ERF.
Best regards,
Arne
Please keep us updated on the availability of this ERF.
Best regards,
Arne
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Re: Aug 11 2022 - Testing a D-ERF
It's the same d-erf filter that Ali sells.Simon2940 wrote: ↑Fri Aug 12, 2022 3:17 pm The DERF will be sold by a company called Astro Hutech based in Los Angeles. Each cell will be custom made to fit your specific scope/dew shield.
The price point we are aiming for is $800 for a 6" including the DERF and holder. Smaller ones being cheaper.
As for sizes, most likely they will be 6 5 and 4 inches, whatever aperture size you want up to 6"
Im pretty sure that shipping will be world wide, you'll just have to deal with customs
But the price is cheaper than Ali.
https://ko.aliexpress.com/item/10050043 ... pt=glo2kor
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Re: Aug 11 2022 - Testing a D-ERF
I believe it is that one but we dont get it from AliExpress
mami813 wrote: ↑Sun Aug 14, 2022 1:40 pmIt's the same d-erf filter that Ali sells.Simon2940 wrote: ↑Fri Aug 12, 2022 3:17 pm The DERF will be sold by a company called Astro Hutech based in Los Angeles. Each cell will be custom made to fit your specific scope/dew shield.
The price point we are aiming for is $800 for a 6" including the DERF and holder. Smaller ones being cheaper.
As for sizes, most likely they will be 6 5 and 4 inches, whatever aperture size you want up to 6"
Im pretty sure that shipping will be world wide, you'll just have to deal with customs
But the price is cheaper than Ali.
https://ko.aliexpress.com/item/10050043 ... pt=glo2kor