The AT72-ED is in.

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Chopin
Post subject: The AT72-ED is in.
Posted: Thu Sep 23, 2010 10:51 pm
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I'll get a picture of it sometime this weekend so that I can pimp this thread out to maximum geek factor. I just figured I'd throw out some quick comments about the scope after spending nearly four hours with it this evening.

Wow. The little scope that could. I think I now understand, first hand, the appeal of tiny apos. The negatives are few. One, it's not quite apochromatic. Although in defense the scope is advertized as a very well corrected doublet, but not specifically apo. At high 50x/inch magnification slight red/left and blue/right shift can be seen on the lunar limb, and even a small amount was noticeable on Jupiter. I wouldn't say it's objectionable, though, and honestly less than I anticipated. Also, I wish the foam material in the case was nicer. Seriously, the white plasticy stuff detracts from the otherwise truly high class equipment package.

All that said, the build quality is stunning. It looks like a $1000+ scope from a high end manufacturer. Machining in awesome, and fit and finish are tight and clean. Mechanical movements are smoooooth! Size and weight are nice and compact. And best of all, optically I was quite impressed. Admittedly, I've never owned an "apo" before. But I was never really able to appreciate the virtues of past achromats because of that darned violet fringe. How amazing to see jupiter cleanly cut out against a black bg. Speaking of jupiter, in P5 seeing tonight, with thin low clouds, I managed 5 bands. And all four moons resolved to disks at 144x! If the atmosphere is more cooperative, I'd love to see how far this glass will go before breakdown.

Funny, I bought this scope to try my hand at imaging. But I'm already falling in love with it's versatility as a quick view scope with nice build quality. I'll undoubtedly add to this thread as I use it more over the upcoming weeks.

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Chopin
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Posted: Fri Sep 24, 2010 8:01 am
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Equipment shown: AT72ED (blue), AT 2" Dielectric mirror diagonal, Meade 5000 40mm SWA, Manfrotto 3246 legs/501 head (+extra handle)

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Last edited by Chopin on Fri Sep 24, 2010 8:09 am, edited 2 times in total.

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Chopin
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Posted: Fri Sep 24, 2010 8:01 am
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Chopin
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Posted: Fri Sep 24, 2010 8:02 am
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Erik
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Posted: Fri Sep 24, 2010 9:54 am
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Wow, nice looking scope, Jason- congratulations!!!

Sounds like the optics are very good as well. I agree with you about the capability and usefulness of small apos. I get more use out of my little SV 80ED than both my larger scopes combined.

Very cool- looking forward to hearing more about your sessions with the AT. :)

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Kawx4d
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Posted: Sat Sep 25, 2010 5:57 am
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Great looking little scope Jason! I think you will enjoy it as a grab-n-go for visual use as well. Nice touch with the laser-engraved scale on the draw-tube - added bonus for imaging!

Congrats on the new toy!

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Chopin
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Posted: Sat Sep 25, 2010 6:23 am
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Erik wrote:
Wow, nice looking scope, Jason- congratulations!!!

Sounds like the optics are very good as well. I agree with you about the capability and usefulness of small apos. I get more use out of my little SV 80ED than both my larger scopes combined.

Very cool- looking forward to hearing more about your sessions with the AT. :)


Thank, Erik. The price/quality ratio is still blowing me away. Hope to to get out tonight for a quick jaunt under some clear skies.

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Chopin
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Posted: Sat Sep 25, 2010 6:26 am
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Kawx4d wrote:
Great looking little scope Jason! I think you will enjoy it as a grab-n-go for visual use as well. Nice touch with the laser-engraved scale on the draw-tube - added bonus for imaging!

Congrats on the new toy!


This will undoubtedly keep me happy for those times I want to at hit at least 100x, but don't want to take the time to set up any of the newts.

And yes, the focuser scale was a nice surprise!

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Jason® (Admin...and spoke-folk)
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Erik
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Posted: Sat Sep 25, 2010 11:09 am
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The portability factor is huge- when I used to go back and forth between California and Hawaii, I almost always brought a scope with me on the plane. I guess what I'm saying is- when you finally make it out to the Big Island, make sure you bring it along so I can look through it too! :lol:

In all seriousness though- having a scope with you can come in handy. I used to put the ST120 in the case and stash it in the trunk just in case I found time to use it in road trips etc. Even a 20 minute observing session under dark skies is easy with such a small scope. I bet you'll get a ton of use out of the AT72! :cool:

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-Erik Wilcox
Homebuilt 16" Truss Dob
8" Antares f/5 Newt
SV 80mm ED Nighthawk NG on M1 ALT/AZ
Nikon Prostaff 65mm spotter on Trekpod
Konusvue 20x80 binos/Peterson PipeMount


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Chopin
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Posted: Sat Sep 25, 2010 4:05 pm
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Thanks, Erik. It's easy to see that happening. With the kids getting older and busier, sometimes 20 minutes is all I have. To set up the dob or GEM driven newt takes all of that time...and forget about cool down...or breaking it all down to bring it back inside. It was kind of a joke, but I timed myself last night to see how long it would take me to set up for viewing. 17 seconds. Most of that was from opening the door and then waiting for Henry to move his butt from the patio. Funny, I didn't even have much time, but scanned the sky for 5 minutes or so. I don't think I ever pulled out the dob for a 5 minute "fun" session. :lol:

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Jason® (Admin...and spoke-folk)
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Chopin
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Posted: Sat Sep 25, 2010 4:07 pm
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Oh, and I'll bring the scope to Hawaii...someday. :lol:

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Jason® (Admin...and spoke-folk)
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