Please do share with us more of this new scope, pictures etc asap!
Hi Dave, thanks for your kind words, I will do just that.
Against all forecasts, we had clear sky in London on Wednesday and I was able to attach the lens to a tube and evaluate it…here are my thoughts:
Sadly…no moon, so that one will have to wait.
First impressions are excellent…the lens was invisible in the cell and the coatings soaked up the flash beautifully when I took a photo of it. *see picture below.
The prototype tube is not ready yet, so I installed the optic into a temporary tube to take advantage of the clear break in the midst of what has been a very poor run of weather. As this tube is not properly blackened, I was prepared to take this into consideration. However, even with the temporary tube, the lens clearly showed just how impressive the TeleVue optics will be in this refractor.
Interestingly (& luckily), seeing was superb on Wednesday night and Jupiter was at superbly placed at the zenith. The Televue objective began to flex its’ muscles here; Contrast is superb. Many belts were visible showing well-defined detail at 160x. I saw no stray colour on this bright object at this magnification.
The optic showed excellent colour control when tested on the brightest stars in the sky (no moon available remember), although I will re-visit this punishing test when the objective is in its’ proper home.
I consider long achromats to be pretty much ideal for double star observation, so these are important to me as a test object:
Considering the makeshift tube, the lens split everything I tried it on with relative ease as I would have hoped/expected, including some tight pairs and some with extreme brightness differences. Rigel, Theta Auriga, Eta Orionis…I even tried low-in-the-south/over-the-neighbours-fence Sirius just for kicks, but still couldn’t do it. The ‘Pup’ continues to elude me...and I feel my neighbours houses are the cause. Perhaps if I ask nicely, they'll all move?
The overall star test was excellent; a nice tidy airy disc, minimal energy in the rings and good symmetry in the intra & extra focal diffraction rings. The best view of the night was of Castor. Not a difficult split by any stretch, but both stars showed simply beautiful, matching star images.
Jaw dropping moment: The exclusive Televue AR101/15 objective and the 8mm TeleVue Delos...Wow.
6 stars in the Trapezium Wow.
I’ve found the original 100mm/F15 to be a hard act to follow. So, I have pulled out all the stops to make the Skylight AR101/15 a luxurious visual instrument & the finest 4” achromat available.
TeleVue have done their part and for that, I thank them.
Prices for this very special refractor will start from £1360. See here
for more details.
Do you have the vision to recognize this opportunity? The first deposits are now in, contact me now to secure yours.
Thanks for reading.