OIII Filter Help

[Vegeta]

Hi everyone, I'm currently considering an OIII filter for my 12" dob. I've decided to buy it in 1.25" format as my medium to high power eyepieces (100X magnification +) are in this format, making it more ideal for planetary nebulae. After this purchase, I plan to buy a 2" UHC filter (for low power, wide field viewing of nebulae). My questions are:

1. is there a difference in brand name? (I'm purchasing the Astronomik one)
2. should I get the UHC filter first?
3. how much of a difference does it make on planetary and diffuse nebs?

[Shark Bait]

I have the Astronomik OIII 1.25" filter and it is a quality product. The brighter stars that are still visible when using the filter remain as pinpoints of light with a greenish hue. It did take me some time to get used to observing with this filter but the results on suitable nebula is stunning.

I will be buying an Astronomik UHC filter as well.

[Kevnool]

I use my OIII on my 14mm and the detail you see is superrrrrrrb.
Use it on any thing Carina is great.Thors helmet just stands right out.
It will work well in a 12 300mm dob.

Cheers

[Poita]

I have an OIII filter you can borrow if you want to try it out.
Just PM me your address and I'll post it down.

[Vegeta]

thanks for the replies, I can now sleep well tonight knowing this information, (it's been on my mind for 2 weeks)! :lol:. thanks for the offer Poita, i really appreciate it...but I think I'll pass. I'll put the order in for the filter and I'll fill you guys in on the details. thanks again and clear skies

[Poita]

I refer the DGM Optics OIII filter over the Astronomik one, I have both and the DGM works better for me.
http://www.ebay.com/itm/HPOIII-1-25-DGM-Optics-OIII-Astronomy-Filter-/160462186370?pt=LH_DefaultDomain_0&hash=item255c4aa782#ht_500wt_1081

Or ebay item number 160462186370 if the link doesn't work.