5 replies to this topic

[arshadwm]

Which are the best LRGB SHO 2 inches filters. ? Baader? Optolong? 

[DarkDesertSky]

This question always goes off like a hand grenade. I'm curious as well though. Can't wait to see where this goes....

[TOMDEY]

Seriously → a hot tail-pipe seen from behind with a redshift of z = +1x10^-7, a full tank of gas, and a couple hours cruising time straight out of town.    Tom

 

"The value of a redshift is often denoted by the letter z, corresponding to the fractional change in wavelength (positive for redshifts, negative for blueshifts), and by the wavelength ratio 1 + z (which is >1 for redshifts, <1 for blueshifts)."

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[hyiger]

Which are the best LRGB SHO 2 inches filters. ? Baader? Optolong? 

This is going to be interesting....

 

OK, I'll start by asking what camera do you intend to use them with? If APS-C then go for 36mm filters instead. They are cheaper. That being said, what's your budget?

 

Now for the fun... I like my Antila Pros. 

Edited by hyiger, 24 March 2023 - 02:18 AM.

[bobzeq25]

Which are the best LRGB SHO 2 inches filters. ? Baader? Optolong? 

Since you didn't state a budget...

 

Here's the best 2 inch LRGB.  Chroma.  $1925 for the set.

 

https://agenaastro.c...-2-mounted.html

 

SHO 2 inch. Chroma.  $3900 for all 3.

 

https://optcorp.com/...-band-filters-2

 

https://optcorp.com/...elescope-filter

 

https://optcorp.com/...elescope-filter

 

So, $5925 buys you the best 2 inch LRGB SHO.  Chroma sells a lot to professional observatories, they have _way_ more than the simple LRGB SHO.

 

https://www.chroma.com/

 

Availability may be an issue.

 

The real message.  Filter quality goes pretty much along with filter cost.  The best are the most expensive.  There are no magic best filters that are also cheap.

 

What people buy is what fits their needs for quality and cost best.  For me, that's Astronomiks.

 

RGB.  About $550.

 

https://www.astronom...-2inch-m48.html

 

L.  About $125.  There are 3 options: L-1, L-2, L-3.  See the website for how to choose.  The L-2 is right for most people.

 

https://www.astronom...-2inch-m48.html

 

SHO.  About $1300 for all 3.

 

https://www.astronom...ii-ccd-6nm.html

 

https://www.astronom...m.html?size=134

 

https://www.astronom...m.html?size=134

 

So, $2000 buys you a very good quality set.  Generally easily available.

 

What I use.  Others are cheaper.  ZWO has a set for $1000.  They're not as good.  Still others are intermediate in price and quality between Astronomik and Chroma.

 

So cost for a set is somewhere between $1000 and $6000.

 

It's just a personal choice.  Knowing what others use is not all that useful to you, everyone has a different budget, and different standards.

Edited by bobzeq25, 24 March 2023 - 12:01 AM.

[arshadwm]

Thank You