Borg / Hutech

Veil Nebula with IDAS and BORG

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Followings are the cropped close-up versions in full resolution mode.

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All light frames were simply stacked. More experienced users should split into RGB individually and create AOO or Hubble Pallet or something else. I will learn that from now on.

I feel the image sharpness might be affected by seeing or the temperature change during the imaging session. Even my 75mm guide scope showed poor seeing.

I wish to use my lovely cooled 6D. But so far, there is no room for one more filter box at this moment. This is why I shot the above with A7. I need the special arrangement for that.

IDAS Nebula Booster #2 and #3

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IDAS NB2 and ODW filters are expected to come in stock next week. (NB3 will be later) Each US price is as follows;

  • NB2-52 : $219.00

  • NB3-52 : $219.00

  • ODW-52 : $89.00

Each is only available at 52mm. No plan for other sizes as regular round-mounted.

This is IDAS’s new filtering “system” for one-shot color cameras to maximize the nebula emission’s S/N while capturing regular RGB broadband colors without re-focusing or taking apart the optical system during imaging session.

While NB1 performs alone, NB2 and 3 requires a base filter since they don’t block NIR themselves. But don’t be disappointed. I explain why…. Following is one example.


Base filter : NGS1 is the best match with NB2 and 3. But regular UV/IR blocking filter may be used too. IDAS LPS or NGS has still good advantage if the sky is light-polluted.

  1. For regular RGB color : ODW (as FMC full spectrum filter)

  2. For narrow-band nabula : NB2 or NB3

And blending in post processing.

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Conventional 48mm UV/IR blocking filters can be set with 52-48 stepping ring as a base filter. But be sure Hutech adapters (for M42 for APS-C or smaller and M54 for full frame cameras) are optimized for IDAS filter thickness. You need to adjust the mechanical distance when non-IDAS filters are in place.

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NB2 for OIII, Ha and NII

NB3 for OIII and SII

Again, as always, each emission line is intentionally set at shorter wavelength side and the transmission peak is the flat-top shape to minimizing signal loss after the spectrum shift. Very well designed as usual.

https://digiborg.wordpress.com

BORG with Eagle 3

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I just setup PLL’s Eagle 3 with BORG 90FL F3.9ED and 50Ach guide scope. Fortunately I could figure out matching Eagle 3’s hole patterns with BORG 3200 plate.

ll look nice and great color matching, and everything is solid.

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Again, Eagle 3 is not just a compact Windows PC. I think the power distribution capability including dew-heater power controls should be more valuable and convenient. I have to ship them out to NEAF today. So I will write up more after coming back.

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