3nm SHO Filters with test report from Altair Astro

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altair_astro
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3nm SHO Filters with test report from Altair Astro

#1

Post by altair_astro »


Hi Guys, haven't posted in a while here! Hope you're all hale, healthy and enjoying the skies.

We have new product to mention:

Altair 3nm SHO filters in 2" size for mono CMOS or CCD imaging

Available individually or as an SHO bundle.

Features are:
3nm FWHW , centred on the CWL at F4.8 or slower
90% transmission at CWL
0.01% transmission off-band visual wavelengths
UVIR blocking
Anti Halo coating. We've never seen a halo with these filters in Beta and mainstream, even on Vega.*
Test report - individual for each filter.

You can see the results with the Altair 3nm filter for yourself in our Facebook group.

You can order from:
USA: Land Sea and Sky in Texas
France: Pierro Astro
Germany: APM Telescopes
Worldwide: Altair Astro (put it in the shopping basket, choose country for total price)
F200SHO3NM-SET-BOX3D-800w.jpg
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F2003NM 3nm Narrowband 2inch Filter Test Comparison Hypercam 26M F4.8.PNG
Attachments
F2003NM 3nm Narrowband 2inch Filter Test Vega 30s Hypercam 26M F4.8.PNG
Last edited by altair_astro on Fri Aug 05, 2022 6:22 pm, edited 2 times in total.
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chris_g United States of America
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Re: 3nm SHO Filters with test report from Altair Astro

#2

Post by chris_g »


altair_astro wrote: Fri Aug 05, 2022 4:04 pm * I have no idea how to attach an image to this but I have pics to share!
Hi,

Switch to the full editor then scroll down until you see options and attachments, it's below the save, preview and submit buttons.

Clear Skies!
Chris
Attachments
Untitled.jpg
Image Cam: Canon 6D (Ha mod), 600D (Stock), SVBony SV405CC
Image OTA: EvoStar ED80, WO Z73, C8-A XLT
Mount: EQ6-R Pro Pier, AZ-EQ5 Pro Pier
Guide OTA: Orion 60mm, WO 32mm, ZWO OAG, SV501P
Guide Cam: ZWO 120mm, 290mm mini
EAA OTA: Orion ST80
EAA Cam: SVBony SV705C
EP: Baader Hyperion Modular Set
Filters: L-Pro Canon EOS C, L-eNhance, L-Pro, Optolong Ha 7mm, Optolong Oiii 6.5mm, Optolong Sii 6.5mm, ES H-Beta
Session Control: Mini PC/Win11 Pro, APT 4.1, PHD2 2.6.10
Processing: PixInsight, DSS 4.2.6, Adobe PS CC, Astronomy Tools Action Set, Star Spikes Pro
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altair_astro
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Re: 3nm SHO Filters with test report from Altair Astro

#3

Post by altair_astro »


thanks Chris I edited the post and found a way to use BBCode as full editor isn't available when editing.
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yobbo89 Australia
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Re: 3nm SHO Filters with test report from Altair Astro

#4

Post by yobbo89 »


very nice, will you be doing a 5nm ha filter ?
scopes :gso/bintel f4 12"truss tube, bresser messier ar127s /skywatcher 10'' dob,meade 12'' f10 lx200 sct
cameras : asi 1600mm-c/asi1600mm-c,asi120mc,prostar lp guidecam, nikkon d60, sony a7,asi 290 mm
mounts : eq6 pro/eq8/mesu 200 v2
filters : 2'' astronomik lp/badder lrgb h-a,sII,oIII,h-b,Baader Solar Continuum, chroma 3nm ha,sii,oiii,nii,rgb,lowglow,uv/ir,Thousand Oaks Solar Filter,1.25'' #47 violet,pro planet 742 ir,pro planet 807 ir,pro planet 642 bp ir.
extras : skywatcher f4 aplanatic cc, Baader MPCC MKIII Coma Corrector,Orion Field Flattener,zwo 1.25''adc.starlight maxi 2" 9x filter wheel,tele vue 2x barlow .

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altair_astro
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Re: 3nm SHO Filters with test report from Altair Astro

#5

Post by altair_astro »


Hi there, @yobbo89 we already do a 7nm filter, here's the set: https://www.altairastro.com/altair-2-pr ... -310-p.asp

We could do a 5nm but it wouldn't be much cheaper than the 3nm.

Is there a reason you need 5nm specifically? Maybe a faster F-Ratio than F4.8?
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