Quote:
Originally Posted by stephenb
Cannot agree more with Mark's comments...
An 18" is perfect for me. I can load everything in the ute by myself, unload it and set it up in 10 minutes max. I have looked through a 25" Obsession but my gut feeling is that it was only marginally better than my 18" under similar skies with a majority of common DSOs. Yes the larger aperture did bring out some extra detail on the occasional faint fuzzy. But I walked away totally satisfied for my 18" 4.5.
I did considered an Obsession but after factoring in the shipping options it was cheaper to buy from SDM - SDM also have supplied no end of free advice and support. I also heard of a disappointing story in regards to their (Obsession's) customer service which really made me nervous.
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I'd have to say that if the 25 didn't blow your 18 away in every respect then it had a poor mirror or the seeing was bad.
No disrespect to your 18 incher, but that's physics!