9 replies to this topic

[splenty]

Hi There,

 

Can anyone help me? Does anyone in the Double Star Observing group use a Astrometic eyepiece for measuring Doubles?

 

I can not get one in the UK.

 

Can some one tell me where I can buy a second hand one.

 

Thank you.

 

Clear Skies Everyone.

 

Steve Plenty

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[Daveatvt01]

Maybe try a wanted ad in the CN classifieds?

[photomagica]

These come up on CN Classifieds or Ebay occasionally. I bought one on Ebay a couple of years ago. Prices that I've seen range from around $120 to $200 USD. There are two versions which I'm told are identical, one by Baader and one made by Baader and branded Celestron. I have the Celestron one. It has the reticle you have shown. 

The eyepiece is a basic 12.5 mm with limited eye relief. I need to use it glasses off. It works best on a long focal length instrument so your may want to use it with a Barlow. The one I bought was hazy, so I disassembled it and cleaned it out with Zeiss wipes. Optically, that made it like new.

Baader's website says they do a production run occasionally: https://www.baader-p...lluminator.html You may wish to contract them and see if/when a new one will be available.

Best regards,

Bill

[splenty]

Hi Bill,

Thank you so much for your help and advice,I really appreciate it.

Steve Plenty

[petmic]

Hi There,

 

Can anyone help me? Does anyone in the Double Star Observing group use a Astrometic eyepiece for measuring Doubles?

 

I can not get one in the UK.

 

 

Steve at ENS Optical seems to have one in stock right now:

 

https://ensoptical.c...arch=microguide

Edited by petmic, 19 May 2025 - 03:47 AM.

[splenty]

Thank you for helping me every one.

[splenty]

Thank you for helping me out.

[R Botero]

Hi There,

 

Can anyone help me? Does anyone in the Double Star Observing group use a Astrometic eyepiece for measuring Doubles?

 

I can not get one in the UK.

 

Can some one tell me where I can buy a second hand one.

 

Thank you.

 

Clear Skies Everyone.

 

Steve Plenty

Steve

 

Yes, place a wanted ad in UK AstroBuySell or Stargazers Lounge.  I did buy the Baader astrometric model ages ago that way - which I have now sold.  When measuring I use a filar micrometre from VSI:  http://www.observatory.org/bfm.htm Unfortunately no longer in business. 

The ENS eyepiece should be in good condition and although the price is a bit rich, these are now rare.

 

Roberto

[C. Evangelista]

Just ask Mr. Johannes Baader for some residual items:

 

https://www.baader-p...lluminator.html

 

(The best and sharpest one is the Zeiss/Abbe/Baader Genuine Ortho 12.5mm-based and phantom coated model, not the Celestron 12.5mm model; I like mine very much...)

 

For subtle measurements, you can additionally use a 2x-5x Barlow that works very well at good seeing...

Edited by C. Evangelista, 20 May 2025 - 08:47 PM.

[BrianSh]

If you haven't found one yet, one just got listed in the classifieds. No idea if the seller is willing to ship to the UK, but I sent them a message pointing them your way.

 

https://www.cloudyni...eyepiece-japan/

Edited by BrianSh, 22 May 2025 - 01:56 PM.