The Dutch Observatory

January 29, 2010 on 1:56 pm | In Mars, Planets, Uncategorized | Comments Off

Yesterday I also ran some imaging tests.  I should have done this a lot earlier, but better late than never .  I used the Williams Optics which I have used a lot lately and replaced the Celestron Shorty which produces pretty weak images with the Meade 140 2x.   I used this barlow almost 2 years ago to run some tests on Jupiter and I was pleased with the results.  However, the tests than were made with a borrowed barlow and I was not able to find one to purchase.  I now have acquired one and shown are some test results.  The 4 images are made with the CPC925 on a wedge, the DMK21AU04.AS and the Meade 140 2x barlow and the WO 2x barlow on extention rings of variable lenght as noted.  It shows that not only this is a good barlow for me for Jupiter as in last year’s tests, but also for Mars.