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Meade AR5 5" LXD55 Refractor - Any Good ?
Posted 12 October 2006 - 11:19 PM
Posted 12 October 2006 - 11:25 PM
Posted 13 October 2006 - 12:10 AM
I agree 100% with your comments on cleaning lenses - it's easy to get far too concerned over a few specks of dust and then mark the coating trying to get them off.
Posted 13 October 2006 - 01:18 AM
The ED100 is very, very nice (as is the ED80 which I've also just got) but I'm not bothered by a little CA in return for some more apeture - I just don't have the funds for a 5 inch apo (there seems to be a huge price step for that extra inch) but I love the views that refractors give.
I'd like to try and ED100 "back to back" with a good 5 inch achro and see how they fare - I wonder if the better colour correction of the smaller scope will make up, at least to some extent, for the apeture difference - I have read that apos seem to "punch above their weight" because they bring the colours to focus closer to the same point but a reasonably well made 5 inch achro is still attractive.
Sounds like the Meade AR5 is a good deal, as achros go.
Posted 13 October 2006 - 02:03 AM
I love it for lunar and planetary views and images. (stunning in my book)
I also don't have a problem with the CA on this scope as i judge it for what it is.
The build quality on the AR5 is reasonable i would say.
The dew shield is a little short for my liking
The 2" focuser could do with an upgrade but i can live with it as it stands.
I have a habit of changing scopes from time to time but i will try to hang on
to the AR5 for as long as i can. (if you are going to Kielder you can have a good look over it if you please)
A keeper in my book.
Posted 13 October 2006 - 07:05 AM
Posted 13 October 2006 - 08:10 AM
Posted 13 October 2006 - 10:57 AM
I've used an AR5 side by side with a Skywatcher 120 f8.3 at our local club. Personally i think there was very little to choose. Both scopes were surprisingly good, I would have been happy with the views from either scope. Both were able to push quite high magnifications with little breakdown of image. And for achros both controlled CA quite well. Although at higher mags on Jupiter I personally thought the CA was becoming a problem and detracted from the view. They certainly worked well up round the 180x mark. The owner of the Meade said 400x was possible but based on that night, not a chance.
I can't give you a direct comparison with my ED100 as I didn't take it along that night. But i can say niether one gave a view as pleasing as the ED100, they didn't make me stand back and say WOW. The ED100 does everytime! Yes they were brighter but i'll sacrifice some brightness for the contrast/sharpness the ED100 gives.
Posted 13 October 2006 - 03:53 PM
Posted 13 October 2006 - 08:07 PM
I'm glad Arthur pointed out that early ones are not collimatable - that's something to look out for - I'd prefer to be able to adjust the collimation if needed.
All in all plenty of food for thought.
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