using binoviewers (BV's) in my F5 dob

[bomberbaz]

Hello guys.

I am currently contemplating getting some BV's for my F5 (1500 FL ) dob and have a few questions, I will try to be as precise as I can however before I do have a try option from a friend before I go ahead should I decide its something i think I will go for. Actually that shuold say i will deffo try first. Anyway, questions are:

1. Is there a huge difference in results betwen the budget priced revelation and the mid priced WO versions.
2. As a spectacle wearer will this cause me any problems other than the usual eye relief issue. ( I always get long ER EP's anyway)
3. I am thinking of using a 27mm pair of EP's and also a pair of 19mm. Barlowed they give me a good range and I would retain some of the existing crop to cover other areas.
4. Am I missing anything else such as focusing issues for BV's that I am not currently aware of. 
5. Should have mentioned my astigmatism is pretty severe if that makes any difference.

Thanks for any advice help. 

Steve

[faulksy]

hi steve, i think big mak can answer some of your questions as he has tried quite a few pairs.