Hello, I need some feedback about my choices for a wideangle eyepiece, a planetary eyepiece, a filter for Mars, and a hydrogen beta filter
1) The 2" widefield eyepiece for seeing large nebula
My telescope is a fast (f4.7) 10" Dob, an Orion XT10.
My main choice for my first widefield eyepiece is a 2" ES68 34mm Maxvision.
This would allow me about 2 degree field (which is my wish) at an exit pupil 7mm.
I think the Maxvision has quite good quality for a fast scope and it is somewhat low prices, at around £120.
Please note that this is not the standard ES68 34mm but it's another version which is cheaper.
Do you guys think the Maxvision is good enough for a fast scope like mine?
The ideal one would be a ES82 30mm but that is much more pricey, at 2.5X the price.
I also found the Skywatcher Panaview 32mm eyepiece interesting, as well as the OVL Aero68 35mm. They are cheaper and provide a similar wide-field but I guess their images would show blurred stars, as compared to the Maxvision. Am I correct with this comparison?
2) The hydrogen beta filter I want to buy, is a 2" filter to be used with the eyepiece chosen above.
I found two cheap priced H-beta filters, the OVL 2" and the Explore Scientific 2". They cost significantly less than an Astronomik (the OVL costs £40,the ES costs £90 and the Astronomik costs around £200). I will use this filter mainly to see the Horsehead, the Cone, Barnards Loop, IC1318 in Cygnus, the Cocoon, the California, and a few faint sharpless nebula. Because I do not expect to use that often as my UHC Astronomik filter, I was opting for a cheaper H beta filter.
Does anyone here has experience with using the OVL h-beta filter or the ES H-beta filter?
3) Mars is coming into opposition, so I need to get an orange 1.25" filter (and maybe a blue one also). Antares offers a 4 filter set for just £40 (and it includes both of them). My other option is for ES orange filter, which is also cheap.
4) At last I need a planetary eyepiece. At the moment I just have the original Plossl 25mm and 12.5mm eyepieces that came with the Dob (that give me 48x and 96x). So I have been using Barlows on them (192x or 288x) for observing Jupiter, Saturn and Mars.
An ideal choice would be a Meade 5.5 UWA (for 218x) and despite the acceptable price (at £140) it makes my total cost of this purchase go quite high. Also that eyepiece wouldn't be barlowed (and 218x is less power on Saturn and Mars than my original 288x) so I was wondering if I wouldn't be better with a 6.7 or a 8.8mm eyepiece (which would give me 180x and 360x with the 6.7mm, and 140x and 280x with the 8.8mm). What is good also about these choices is that it provides a much better main eyepiece for observing galaxies, rather than my poor quality 12.5mm Plossl.
Not sure which one is best between the 6.7mm and the 8.8mm. I was thinking choosing from the ES82 range (which I know it has good quality) or other ranges like the OVL82 UWA Nirvana range, or the Vixen SLV range, or I could stick with an ES62 9mm or with even a Televue Plossl 8mm. All of these cost about £100 per eyepiece.
I could also stick with very low price eyepieces (£30 per eyepiece), that may actually be good enough, such as the Vixen NPL range (Plossl eyepieces), the Meade 4000 Super Plossl eyepieces. Any comments?
I am trying to fit these 4 choices in a budget of £200. Maybe I am choosing wrongly by sacrificing the quality of the planetary eyepiece rather than the wide-field eyepiece for nebula (maybe I should choose a cheaper wide-field eyepiece and invest on a better 8.8mm eyepiece). The other thing I am sacrificing a bit the quality is the hydrogen beta filter.
Edited by Pcbessa, 03 August 2020 - 01:04 PM.