128 replies to this topic

[slloyd47]

The as AT60EDP along with the current sale price has caught my attention. I already own an AT60ED with the associated 0.8 flattener/reducer. I only use it for my widefield astrophotography. I am considering selling the 60ED and upgrading to the 60EDP. Does that make any sense to anyone else?

[wrvond]

The as AT60EDP along with the current sale price has caught my attention. I already own an AT60ED with the associated 0.8 flattener/reducer. I only use it for my widefield astrophotography. I am considering selling the 60ED and upgrading to the 60EDP. Does that make any sense to anyone else?

With the FR/FF the 60ED is f/4.5 compared to the EDP at f/5.

 

That would seem to give the edge to the 60ED. 

[John R.]

Nah, I already got a Tasco 300mm f5. 

 

I’m sure that’s close enough for the likes of me. 

[scout]

Not to rush anyone's decision, but the Astronomics' latest email newsletter from a few days ago says the sale on the AT60EDP and other AT refractors and eyepieces ends at Midnight on February 29th.

[MedicineMan4040]

Old thread I suppose but I received the 60EDP this past week.

Dialed in my backfocus using a 17.5mm adapter a kind soul on this forum recommeded

and the 54mm ZWO filter drawer.

Have completed my pier/currently building the surrounding but not touching deck. Pick up

angle iron for the RAS (roll away shed) tomorrow. 

Maybe a week out/maybe two and I'll try to get some light through this little EDP.

[Rafael Amarins]

I wasn't aware of this scope until recently. I feel really tempted to upgrade from my Evoguide + Starizona FF 

[kgb]

I wasn't aware of this scope until recently. I feel really tempted to upgrade from my Evoguide + Starizona FF

I had (still have) an EvoGuide as my ultra portable, wide field setup. It has since been replaced by the 60EDP

[Nemo51]

Mine has horrible, incurable pinched stars. 

[BlueMoon]

 

Mine has horrible, incurable pinched stars.

So what you done to resolve the problem? "Pinched optics" are not incurable.

[Nemo51]

So what you done to resolve the problem? "Pinched optics" are not incurable.

Thanks for your comments.  My experience was otherwise: I gave it to a local group and they promptly sent it back. Believe as you wish, as shall I. 

Edited by Nemo51, 23 July 2024 - 11:38 AM.

[BlueMoon]

 

I gave it to a local group and they promptly sent it back.

Ah, okay. So you no longer own it and the next owners got the problem resolved in some fashion. Cheers.

[Nemo51]

Ah, okay. So you no longer own it and the next owners got the problem resolved in some fashion. Cheers.

Nope. I gave it away to a local group, and they sent it back to me as an unfixable mechanical issue. 

Edited by Nemo51, 23 July 2024 - 11:55 AM.

[kgb]

Here is the thread that Nemo51 is alluding to:

https://www.cloudyni...he-new-at60edp/

I don't want to pull anyone's tail, but I think it a tad disingenuous to say that it was an incurable mechanical issue. It appears to be related to overtightened centering screws which becomes more prominent in colder weather. (Nemo51 was operating at 0C (32F) when this was originally documented).

What I find curious, despite Astronomics offer to take back the scope in order to remedy the matter (https://www.cloudyni...edp/?p=13295731), Nemo51 appears to have, instead, embarked on a campaign to take regular pot shots at this scope in any forum that subsequently mentions it.

[Nemo51]

Here is the thread that Nemo51 is alluding to:

https://www.cloudyni...he-new-at60edp/

I don't want to pull anyone's tail, but I think it a tad disingenuous to say that it was an incurable mechanical issue. It appears to be related to overtightened centering screws which becomes more prominent in colder weather. (Nemo51 was operating at 0C (32F) when this was originally documented).

What I find curious, despite Astronomics offer to take back the scope in order to remedy the matter (https://www.cloudyni...edp/?p=13295731), Nemo51 appears to have, instead, embarked on a campaign to take regular pot shots at this scope in any forum that subsequently mentions it.

Thanks for your comments, ironic though they be. 
pot·shot
/ˈpätˌSHät/
noun
noun: pot-shot
a shot aimed unexpectedly or at random at someone or something with no chance of self-defense.
"a sniper took a potshot at him"
a criticism, especially a random or unfounded one.
"the show takes wickedly funny potshots at movies"
a shot at a game bird or other animal purely to kill it for food, without regard to the rules of the sport.

 

The condition exists and has been reported by others. As required, I tried to fix it and could not despite continued testing and attempts. My learned donees could not fix it.  Specific, non-random bases in fact exist for my opinions and comments. 

 

Finally, your comments necessarily imply that any and all conditions of pinched optics can be cured or fixed. Such is not the generally accepted scientific view among those qualified to opine it. (For example, If its ground into the glass one may be able to reduce the effect by rotating the elements but not fully remove it.)
 

as for being disingenuous, I’ll leave that to others. Again, thanks for your comments and contentions. 

Edited by Nemo51, 27 July 2024 - 01:02 PM.

[kgb]

You didn't address why you declined the offer, by Astronomics, to return this scope and, instead, decided to regularly snipe(2) upon mention of this scope in tangentially related threads.

Snipe; sniped; sniping
(intransitive verb)
1 to shoot at exposed individuals (as of an enemy's forces) from a usually concealed point of vantage
2 to aim a carping or snide attack

[Nemo51]

You didn't address why you declined the offer, by Astronomics, to return this scope and, instead, decided to regularly snipe(2) upon mention of this scope in tangentially related threads.

Snipe; sniped; sniping
(intransitive verb)
1 to shoot at exposed individuals (as of an enemy's forces) from a usually concealed point of vantage
2 to aim a carping or snide attack

Thank you for your several kindnesses. Once again, the irony is manifest as to who is sniping, and perhaps the motive. I did what I was asked to do, and reported the results yet no further offer of return appeared. Subsequently, I ran into some health issues and lost intest, so yes, that much is on me. 
 

Impliedly, you agree that some pinched optics are unfixable. In this we, and science, agree. 

 

carp·ing
/ˈkärpiNG/
adjective
continually complaining or finding fault about trivial matters; difficult to please.
"she has silenced the carping critics with a successful debut tour"
noun
continual complaining or finding fault about trivial matters.
"he did not enjoy the constant carping of reviewers"
 

Nothing is small or trivial about a $650 scope with unfixable, pinched optics. 

 

In any event, this is a forum, which invites discourse, so in that context observations or anecdotes are not sniping. 
 

Will you be continuing your quest to put me in a false light despite the continuing condition of pinched optics, a non-trivial, material product defect?

Edited by Nemo51, 27 July 2024 - 02:12 PM.

[kgb]

I am happy to let others be the judge. Besides, I think you left enough of a trail that others can find their way to arrive at their own conclusions.

[Nemo51]

I am happy to let others be the judge. Besides, I think you left enough of a trail that others can find their way to arrive at their own conclusions.

Thank you for your several kindnesses. The condition is a serious optical flaw in my scope, and continues despite inferences or ad hominems suggesting otherwise. 

Edited by Nemo51, 27 July 2024 - 02:16 PM.

[kgb]

Thank you for your several kindnesses. The condition is a serious optical flaw in my scope, and continues despite inferences or ad hominems suggesting otherwise.

I never attacked you personally BTW. I merely exposed a few apparent contradictions. Sorry that you took it as a personal attack.

[Nemo51]

I never attacked you personally BTW. I merely exposed a few apparent contradictions. Sorry that you took it as a personal attack.

Thank you for your kindness: form over substance. It seems, by implication, you agree the condition continues and is unfixable. Your demand for what you believe to be strict logical consistency begs or obscures the question, the condition continues, and is unfixable. 
 

if I can find a means of ignoring your posts, I’ll do it. 

Edited by Nemo51, 27 July 2024 - 02:27 PM.

[kgb]

Thank you for your kindness: form over substance. It seems, by implication, you agree the condition continues and is unfixable. Your demand for what you believe to be strict logical consistency begs or obscures the question, the condition continues, and is unfixable.

Not sure what you are talking about. I will not concede, or have not conceded, that it is unfixable. I asked you in a different thread to send me the scope so that I could fix it because I am confident that the problem can be remedied. I am confident because I have personally fixed scopes that suffered from the same exact problem in the past and the diffraction pattern that you have documented points to an obvious cause.

[Phil Cowell]

There was the occasional problem some of the AT65edq’s had. It was the retaining ring holding the glass overly tight. Just had to loosen it a little and problem fixed. Sounds similar.

Here is the thread that Nemo51 is alluding to:

https://www.cloudyni...he-new-at60edp/

I don't want to pull anyone's tail, but I think it a tad disingenuous to say that it was an incurable mechanical issue. It appears to be related to overtightened centering screws which becomes more prominent in colder weather. (Nemo51 was operating at 0C (32F) when this was originally documented).

What I find curious, despite Astronomics offer to take back the scope in order to remedy the matter (https://www.cloudyni...edp/?p=13295731), Nemo51 appears to have, instead, embarked on a campaign to take regular pot shots at this scope in any forum that subsequently mentions it.

[Nemo51]

There was the occasional problem some of the AT65edq’s had. It was the retaining ring holding the glass overly tight. Just had to loosen it a little and problem fixed. Sounds similar.

Phil, several have tried with mine, yet it remains. I suspect the defect is otherwise. 

[MedicineMan4040]

First light through my AT60EDP.

I like this scope.

I guess I'll find out about pinched optics this winter

Edited by MedicineMan4040, 05 August 2024 - 07:20 PM.

[Nemo51]

First light through my AT60EDP.

I like this scope.

I guess I'll find out about pinched optics this winter

How did you get diffraction spikes!  Mine certainly doesn’t do that but my Quattro 150 newt does….

Edited by Nemo51, 05 August 2024 - 10:23 PM.