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I ordered a 5x2” ZWO filterwheel for my OSC 2600mc. Currently I have a Antlia Ha/Oiii filter and Askar D2 Sii/Oiii filter. I was curious if there is another filter I should buy to put in the wheel. I really didnt trust the filter drawer and wanted the ability to go between broadband and another filter easier between multiple target nights. I was hoping there was a filter that was good for galaxies to allow in more broadband but blocked out some light pollution too. any ideas would be appreciated |
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IDAS just came out with a new DTD (Dusk To Dawn) filter that is geared towards Galaxies and Comets. It comes in 2" size.
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I've found the Antlia Tri-Band filter is great for broadband targets like galaxies and does help with enhancing signal and LP suppression from my bortle 5-7 zone. I've thought about doing the same thing, getting a 5x2 efw, then putting in my ALP-T Dual Band, triband, UV/IR cut, and a darks filter. I could probably add a dual band Sii filter (like you have with the askar) to complete the 5 slots and cover all my bases. I'm sure others have done something similar! |
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Eddie Bagwell: I have not heard of this I will check it out! |
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David Foust: I highly recommend the Askar D2 its working great. I am googling the triband thank you |
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I use the D2, Alp-T HA/OIII, UV/IR, TriBand, and L-PRO in my OSC filter wheel, with my ASI2600mc, and find the L-Pro does a decent job with galaxies in my Bortle 7 suburban sky.
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Panoramas taken at 11mm, f2.8, 120 seconds, iso 2000, with the DTD filter Beautiful! |
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Yes, beautiful images, but i am more into deep space galaxies than a landscape wide field milky way, i will use telescopes large ones with color camera, and i live under Bortle 8/9 so heavy light pollution, i only have one dual band filter that i never tested yet and a light pollution filter which is IDAS D2 and i don't like it, it cut a lot of color band, it is like killing most of blue and some of green and keep most of red, so i have to do heavy processing trying to show all or most colors if i can, sometimes i feel it is better to have some of LP in the data and process it than killing it mostly so killing a wavelength or color bandwidth with it too, and just in future if i can drive to less LP so i prefer a filter that has minimal LP suppression than heavy one.
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Have you tried no filter? You might be surprised at how effective that can be.
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That DTD filter looks pretty cool! I hadn't seen that yet either but am going to check it out now. I have the same filter wheel. I put the IDAS NBZ, IDAS HeUB (HA enhanced UV-IR), IDAS LPS D2 light pollution filter, Radian Ultra Quad Band, and then no filter in the 5th spot. The HeUB filter really has been an amazing filter for broadband objects and Galaxies with Hydrogen Alpha wavelengths. It quickly became one of my favorite filters along with the NBZ for narrowband, just about all I use anymore between those 2 filters with color astrophotography. Amazing shots with the dawn to dusk filter! |
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Tony Gondola: This question is to whom? |
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Tareq Abdulla:Tony Gondola: The OP |
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Tony Gondola:Tareq Abdulla:Tony Gondola: Ah ok |