Support Astromart! | Log In | Help
Astronomy NewsTelescope ClassifiedsTelescope AuctionsTelescope Articles & ArticlesTelescope Articles & ReviewsTelescope and Astronomy ForumsAstronomy Events Calendar
View Categories
Browse By Location
Place A New Ad
Display Preferences
Search Classifieds

User Name:


Save Login
New to Astromart?
Register an account...

Terms of Service
Privacy Policy
Help & FAQ
Astronomy Links
User Profiles
Top Users List
RSS Feeds

Home > Classifieds > Astromart Classifieds > Barlows > Classified #964834

For Sale: Unique 1.6x Barlow

Please Log In to view the details for this classified ad.
Don't have an Astromart account? Click here to create one

I have for sale a custom assembled 1.25? Barlow measured to 1.6x magnification factor. The lense is the 2x Williams optics binoviewer nosepiece Barlow. This is not the 1.6x Barlow that comes in their kit. This is the 2x lense that is bought separately. The lense is threaded into a blue fireball 1.25?-2? adapter. Finally, a standard 2?-1.25? adapter goes into the the 1.25?-2? adapter.

I measured the magnification factor repeatedly using Measurements of distance on a wall as viewed from 35 feet. The magnification came out to 1.62x for non-TV eyepieces and 1.57x for TV eyepieces.

The Barlow does require infocus room. With my 120ED there was only about 5mm of infocus left with the stock focuser. With the Moonlite focuser there is about 15-20mm of infocus left.

Performance of this Barlow is excellent. It is a flat field Barlow so it keeps the edges clean and slighted sharpens edge performance.

You can see in the photo the adapter has some flat black paint that ran onto the annodizing when I painted the threads.

Cost of Parts to make this was $ 90. Have this one for $55 shipped.


Back to Listing

All times are in (GMT-8:00) Pacific Standard Time Zone  
Astronomy News | Telecope Classifieds | Telescope Auctions | Telescope Reviews | Telescopes | Telescope and Astronomy Forums | My Account | Help | RSS