Posts Made By: Mark Gemmell

Originally Posted by Wayne Yaskew

Hey John,
I am in a fairly small community and it’s virtually impossible for me to try out different eye pieces before I buy.
In fact my dealer is 800 miles away in Alberta. I’m just trying to get opinions from other enthusiasts as to what’s the best pick for me might be taking into account what I already have in my collection.
I’ve been told the low power I pieces play eyepieces, say 7mm or even 9mm will just result into much blur taking into account by scope (C925) and conditions.

I’d like to fill the gap between 21 and 31. What would you suggest? I’m OK with the cost of say a Tele Vue. I just don’t want to pick the wrong one or a redundant one

There really is no need to fill the gap between the 21mm E and the 31mm Nagler. Both have almost the same true fields and there's not much of a difference to fill in that gap IMO.

Originally Posted by Rod Mollise

Any dimming due to more lens elements is extremely minor due to modern coatings. Also, your eyes will not easily detect anything less than a 10% decrease in brightness. The key is not looking for a "brighter" eyepiece, but learning to use what you have. Which is appropriate for viewing what, etc. Your 5-inch delivers plenty of light for many, many objects, BTW. <img class='' src='http://astromart.com/astromart/javascripts/sceditor/emoticons/wink.png' alt='wink' title='wink'/>

THIS HERE !!! (Nailed it).

Hi Guys, I know this post is 5 years old....but I'd like to ad my two cents, tax included, lol.

I found that the Lumicon O-III filter ,(not the older one that oxidizes), had the biggest impact on DSO's from my light polluted yard, (still nowhere near as good from a darker site I go to about 30 min away from my backyard).

I tried it on The Helix Nebula, M-17, M-27, M-97, and more. Other filters had a lot less of an impact from my light polluted yard.

Filters work best in darker skies FYI.

I've tried broadband filters on galaxies from darker skies and the filterless view was always best. The ones I tried were the Orion Skyglow and the Baader UHC-S, (which is really a broadband filter).

Another thing to take into consideration is that even though you could have 5 of the exact same filters, all 5 could still work differently because of QC.

Great posts, Rod and Ed! 

Cheers!