What type of Fiiter for DSO's Astrophotography

[Mariner]

I use an Astronomik UHC filter for emission nebulae in Singapore.
When I'm doing broadband objects like reflection nebulae, clusters or galaxies, it might be a better idea to use a petrol filter..... up to Mersing or Sedili...

Hi Kevin,

What type of filter when you mentioned a petrol filter?

Roland

Drive.

[roma_my]

All you want to know about filters, like what to use for what objects , can be found in this site. Check the relevant chapters under Filter research.

http://www.karmalimbo.com/aro/filters/filters-useC.htm

Kochu/19-6-12

Thanks Kochu for the link. Very much appreciated.

Roland

[roma_my]

I use an Astronomik UHC filter for emission nebulae in Singapore.
When I'm doing broadband objects like reflection nebulae, clusters or galaxies, it might be a better idea to use a petrol filter..... up to Mersing or Sedili...

Hi Kevin,

What type of filter when you mentioned a petrol filter?

Roland

Drive.

Oic...lol...

[roma_my]

clip-on filters won't work on a full-frame.

i use an IDAS LPS-V4 (note it has to be a "V4") which works very well for emission nebulae in SG. it's like an H-alpha filter but less aggressive. i don't think you can use an H-alpha filter on an unmodded DSLR because the DSLR has an IR-cut filter. so the V4 would definitely work better, how much better I don't know for sure (I use it on a QHY8, which has no IR cut filter).

Hi Orly,

Will research more on the IDAS LPS-V4 on CN and others. Thanks very much