Quote:
Originally Posted by Kal
The Meade UWA eyepieces are basically a clone of the type 1 nagler, which Televue didn't bother taking a patent out on because it was close to releasing an improved type 2 version (which they did patent). The main difference between type 6 naglers and earlier naglers is that they sacraficed some eye relief to help remove the 'kidneybean' effect.
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No they aren't, not even close.
The Series 4000 Meade UWA eyepieces are a close clone of the original Naglers. They are different, but "ALMOST IDENTICAL". Meade split the only single Nagler element into two elements, thus the original Nagler 13mm had 7 elements and the 14mm S4000 Meade UWA had 8 elements. It's worth noting the exterior contours of the two new Meade elements are "REMARKABLY" similar to the exterior contours of the single Nagler element. As many have said previously, the S4000 Meade UWA eyepieces were the best eyepieces a "LAWYER" could design. FWIW The Series 4000 Meade SWA series are a very close clone of the Televue widefields, which preceeded the Televue Panoptics and influenced their design.
The Series 5000 Meade UWA use a different design to the Series 4000 UWA. Knowing Meade and their history, there is an extremely high likelihood the S5000 UWA are a close clone of something, but it's not the original Nagler.
BTW there is no such thing as a type 1 Nagler. There was the original in 1980, which was never labelled type 1 by Televue and then the T2 was released about 1984, from memory.
CS-John B