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Ed Ting new review

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#1 DLB242

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Posted 04 May 2010 - 07:08 PM

http://www.scoperevi...com/page1y.html

It has been awhile since Ed Ting posted a shoot out review. He is joined by two club members you may remember if you were a reader in the old days Chase M. and Old Dan for a show down between two 6" Achros, the Explore Scientific AR152 152mm f6.5 and the Astro Telescopes A1522 152mm f/5.9.
:gotpopcorn:

#2 BWAZ

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Posted 04 May 2010 - 07:12 PM

I always enjoyed his reviews and it's nice to see he is back!

#3 mikey cee

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Posted 04 May 2010 - 08:46 PM

Yeah like I give a rat's rear end what goth girl's likes or dislikes are. :smirk: :vomit:Mike

#4 stevew

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Posted 04 May 2010 - 08:50 PM

Thanks for the link.
Ed's reviews are always a pleasure to read.

Steve

#5 RobertED

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Posted 04 May 2010 - 09:12 PM

Great to see Ed back in action!!! Go get 'em!, Ed!!

#6 AlienRatDog

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Posted 04 May 2010 - 09:13 PM

He is ALIVE!!!

#7 Darren Bly

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Posted 04 May 2010 - 09:54 PM

Goth girls are hot! :-)

#8 MorningStar1969

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Posted 05 May 2010 - 12:50 AM

Ed's reviews and website have gotten me thru many a tought day. I think he and Phil Harrington also bring a lot of personality and humor to the hobby.

#9 crazyqban

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Posted 05 May 2010 - 03:10 AM

Wow, it's great to see that Mr. Ting is back at it. I have always enjoyed his reviews and learned a great many things...

Sergio

#10 Traveler

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Posted 05 May 2010 - 04:00 AM

The telescope adviser is back!

White refractor tube's? I thought gothics prefer black tubes... :cool:

#11 WarrenS

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Posted 05 May 2010 - 06:11 AM

Yeah like I give a rat's rear end what goth girl's likes or dislikes are. :smirk: :vomit:Mike


Hey, more people looking through telescopes is always a plus for the hobby. Don't be an old stick in the mud. :)

#12 tsmith70

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Posted 05 May 2010 - 08:08 AM

Ed's reviews are fun to read and very informative. I'm glad he's started them back up.

#13 deSitter

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Posted 05 May 2010 - 08:25 AM

It's strange how even a good review from a good reviewer can be misleading.

Assuming what he says about these scope is true (an excellent assumption), then why not skip the shorties and go straight to the 6" f/8 offered by e.g. Astrozap, Meade, ...? The performance will be proportionally better and one will lose nothing in wide-field observing with the right eyepiece.

But, it's good to see achromats getting good press.

-drl

#14 Clive Gibbons

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Posted 05 May 2010 - 08:38 AM

Assuming what he says about these scope is true (an excellent assumption), then why not skip the shorties and go straight to the 6" f/8 offered by e.g. Astrozap, Meade, ...?


The f/8 would be longer and less portable? :idea:
I'd be interested to know how the color correction/sharpness of the AstroTelescopes 6" f/5.9 holds up against an Astrozap/Meade 6" f/8. Especially since the 6" f/5.9 outperforms the f/6.5.

BTW, the 6" f/5.9 is made by Kunming United.
The 6" f/6.5 (and f/8) are made by Jinghua.

(P.s., it's excellent to see Ed Ting reviewing again! :woohoo:)

#15 Jeff B

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Posted 05 May 2010 - 08:51 AM

Interesting as there were no star testing impressions.

Jeff

#16 deSitter

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Posted 05 May 2010 - 09:21 AM

"Don't look at Sirius." - I love that line :)

Actually my 6" f/8 (since sold) split Sirius like a ripe blue melon.

-drl

#17 galaxyman

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Posted 05 May 2010 - 10:04 AM



Assuming what he says about these scope is true (an excellent assumption), then why not skip the shorties and go straight to the 6" f/8 offered by e.g. Astrozap, Meade, ...?


The f/8 would be longer and less portable? :idea:
I'd be interested to know how the color correction/sharpness of the AstroTelescopes 6" f/5.9 holds up against an Astrozap/Meade 6" f/8. Especially since the 6" f/5.9 outperforms the f/6.5.

BTW, the 6" f/5.9 is made by Kunming United.
The 6" f/6.5 (and f/8) are made by Jinghua.

(P.s., it's excellent to see Ed Ting reviewing again! :woohoo:)


That is one of the reasons I went back to a 6" f/6.5 after the Astrozap 6" f/8. A bit easier on the Celestron AS CG-5 mount, and a bit more comfortable observing positions.

The optical coatings on the ES is also better than previous 6" refractors I've owned, including the Astrozap. The focuser is also far better than the previous 6" refractors (Skywatcher, Meade,, Antares, and Astrozap)

Optically this particular ES 6" f/6.5 is a bit better than my previous Skywatcher, and Meade. The Astrozap 6" f/8 I owned was of very good quality optical-wise, but the coatings (just multi-coated) show a bit more reflective quality, then the ES which are fully multi-coated.

Overall, I'm impressed with the ES 6" f/6.5, particularly for the $, which Ed pointed out in the review.



Karl
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Chesmont Astronomical Society - www.chesmontastro.org
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Homemade (Parks Optics) 12.5" F/4.8 Dob
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#18 LBartolomei

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Posted 05 May 2010 - 11:28 AM

I love Ed's reviews! It's great to see him back.

Guess I have goth girl taste. Maybe there's a tattoo on my face in the future.

#19 deSitter

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Posted 05 May 2010 - 12:47 PM

Interesting as there were no star testing impressions.

Jeff


Jeff, I have the AR-5 and had an AR-6 clone - both had a perfect star test - the AR-5 is, aside from the color, theoretically perfect.

-drl

#20 MorningStar1969

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Posted 05 May 2010 - 12:54 PM

Yeah Ed is the bomb, but i mostly go with the girl next door type, does it the most for me, though my girl can glam up with the best of them and does have one small, tasteful tat.

#21 Joe Bergeron

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Posted 06 May 2010 - 12:34 AM

I wonder if Ting checked the Astrotelescope for vignetting. That could easily explained the less than expected color error.

#22 plyscope

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Posted 06 May 2010 - 02:24 AM

Good point Joe, some vignetting in a fast achromat can be a good thing with wide field eyepieces to dim some of the outer field abberation but too much will effectively reduce the aperture.

A 2 inch focuser with a longish drawtube will act as a baffle a quarter to a third of the focal length from the field stop. A focuser with a 3 inch or larger diameter drawtube will minimise the vignetting or alternatively a 2 inch, very short travel focuser. This is especially critical at f5 a little less so at f6 or f6.5.

I learnt something in this thread;
Using widefield eyepieces in f5 refractor

#23 jason_milani

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Posted 06 May 2010 - 08:22 AM

I have the Astrotelescopes 152mm with the 2" focuser and it needs an extension on the focuser tube to reach focus visually. I didn't see one on the scope in the review. I do believe with the focuser racked in all the way without the extension in binoviewer mode it may vignette. also, the balance point shown in the photos is not correct. This thing is WAAY front heavy. On mine, the front tube ring is almost touching the extended dew shield.

#24 Clive Gibbons

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Posted 06 May 2010 - 08:26 AM

I wonder if Ting checked the Astrotelescope for vignetting. That could easily explained the less than expected color error.


That would be good to know.

IIRC, he once tested a popular 80mm f/6 achro a while back and discovered that it's (1.25") focuser vignetted, which resulted in less spurious color.
So, he's been aware of that possibility in the past.

#25 drshr

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Posted 06 May 2010 - 08:52 PM

Good clear unbiased review. It's a Ting Thing.






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