Celestron Ultima 2x Barlow, Damaged.

[bomberbaz]

Hello all.

I have a Celestron Ultima 2x Barlow which was dropped and damaged the barrel. End result, wont accept filters but visually it seems perfect. I have not noticed any distortion and an unfocused star test seemed perfectly spherical.

Anyway, since i bought the orthoscopic barlow I have not used it at all. So think it might be time to offload but at what cost!

Given the above damage I just wondered how this will effect resale price, is there a rule of thumb on this?

Steve

[rwilkey]

Hi Steve, personally I wouldn't sell on damaged goods, it's a pain that it doesn't take filters but I would just bin it and put it down to experience (expensive though this item is).

[laudropb]

Don't think you would get many takers. I certainly would not be tempted.

[Joseki]

the Ultima barlow's discontinued (I think) but what ever price they come up at 2nd hand in good condition + and extra 20-30% off ? Someone could well be interested at the right price.  You can always list it on ABS and see if you get any interest (it would be a shame to chuck it IMO).

[bomberbaz]

the Ultima barlow's discontinued (I think) but what ever price they come up at 2nd hand in good condition + and extra 20-30% off ? Someone could well be interested at the right price.  You can always list it on ABS and see if you get any interest (it would be a shame to chuck it IMO).

I think I will do just this. If I put on detailed pictures and offer returns then it should be a more palatable if someone wanted a decent (yet slightly damaged) Barlow at the right price.

Last I saw one on ABS it was around £75 so I could try £50 or offers.

@Robin. Surprised to hear you would bin it buddy, like I said it seems in perfect working order, I will try a barlowed laser to see what results that gives and a star test again later just to verify.

Steve

[Roy Challen]

Don't bin it! I'd be surprised if you got £50 for it though, there's been a couple on abs recently for around that which weren't damaged, but even a tenner or twenty is better than nothing.

[bomberbaz]

Don't bin it! I'd be surprised if you got £50 for it though, there's been a couple on abs recently for around that which weren't damaged, but even a tenner or twenty is better than nothing.

Yeah i had a look on ABS, £50 is deffo too much to ask. I will pitch it out lower and see what gives, thanks.

[Dave In Vermont]

Is there any way to re-tap (re-thread) the barrel? That would solve the problem - you might even keep it.

Dave

[JamesF]

I agree that it would be a shame to ditch it if it still appears optically ok.  Before these were discontinued they had a reputation as being an excellent barlow and were very much sought after once they were no longer available new.

I do have to admit to a slight confusion though as my 2x Ultima won't accept filters anyhow.  The retaining ring for the lens assembly comes right to the end of the barrel.

James

[JamesF]

The second image on this page shows what mine is like:

http://www.astronoce.pl/recenzje.php?id=61

James

[Roy Challen]

Perhaps you could post a pic Steve, to save any confusion and so give better advice.

[JamesF]

Yeah, that's not a bad idea at all.

James

[jkwhinfrey]

I can't get filters on mine for the same reason either.

James II

[Dave In Vermont]

Could the Barlow lens-cell be screwed further up the barrel, James? If so, then it would have threads for a filter.

Dave

[JamesF]

I don't believe so.  The "outside" lens will need to be in a specific position for the barlow to work, so I guess the retaining ring is going to be in pretty much the same position whatever.

James