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Equipment Discussions >> Refractors

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Mr Onions
Two Time International Photographical Competition Winner
*****

Reged: 04/14/07

Loc: Newcastle upon Tyne.
Re: Are achromats enjoying a come back? new [Re: csrlice12]
      #5539157 - 11/25/12 05:44 PM Attachment (25 downloads)

The Skylight's may be a touch expensive but they're all hand made and look a million dollars,here's my 60mm Skylight complete with brass rings.
I had mine on the moon two nights ago,it's only the 60mm version but there was no image breakdown at 333x.
Floaters in eye made this experimental magnification unuseable but there was NO breakdown!
I found that 200x on moon with this 60mm very useable.


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Slow Astronomer
member


Reged: 05/01/10

Loc: Milky Way Galaxy
Re: Are achromats enjoying a come back? new [Re: Mr Onions]
      #5539308 - 11/25/12 07:36 PM

As others have noted the technology has improved achro quality immensely. I really enjoy DSO viewing thru my Orion 120ST that I've had for some time now. I had to replace the garbage focuser but the glass & tube perform beautifully. Did a mini-Messier list the other night and had a blast using a TV 24 Pan and 16N T5. M42, NGC 869/884, M31, M45 and more were brought to eye. I also own a Tak TSA-102S but for most of my DSO stuff the 120ST is cool beans! Clear Skies.

Dave


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Deep13
Carpal Tunnel
*****

Reged: 01/25/05

Loc: NE Ohio
Re: Are achromats enjoying a come back? new [Re: Slow Astronomer]
      #5539335 - 11/25/12 07:53 PM

Just out of curiosity, how big does as an f/15 achro have to get before the mounting requirements make it more expensive than the same aperture apo?

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stevew
Now I've done it


Reged: 03/03/06

Loc: British Columbia Canada
Re: Are achromats enjoying a come back? new [Re: Mr Onions]
      #5539351 - 11/25/12 08:03 PM

Quote:


Floaters in eye made this experimental magnification unuseable but there was NO breakdown!




This is the same problem I have with small scopes.
I find that 4 inches is my minimum to avoid those nasty floaters.
Achromat or Apochromat doesn't matter to me as long as it's a high quality well corrected objective.

Steve


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Scott in NCAdministrator
80mm Refractor Fanatic
*****

Reged: 03/05/05

Loc: NC
Re: Are achromats enjoying a come back? new [Re: Mr Onions]
      #5539352 - 11/25/12 08:03 PM

Quote:

The Skylight's may be a touch expensive but they're all hand made and look a million dollars,here's my 60mm Skylight complete with brass rings.





Mr. Onions, that achromat of yours is a real looker!


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Sean Cunneen
Let Me Think
*****

Reged: 08/01/07

Loc: Blue Island Illinois
Re: Are achromats enjoying a come back? new [Re: Deep13]
      #5539376 - 11/25/12 08:26 PM

Quote:

Just out of curiosity, how big does as an f/15 achro have to get before the mounting requirements make it more expensive than the same aperture apo?




SHHHHHHH. Don't go ruining a perfectly good love-fest.


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